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Vitamin C

Vitamin C Review 2023

Find the best vitamin C supplements based on ConsumerLab's independent tests. Read our reviews and comparisons of popular vitamin C pills, gummies, powders, and liquids and learn when to use different forms of vitamin C (ascorbic acid, sodium ascorbate, calcium ascorbate, liposomal vitamin C), if vitamin C supplements help prevent colds, provide energy, or have other health benefits, plus information about dosage, safety, and potential side effects of vitamin C.

Vitamin C Review

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Product Review

Multivitamin and Multimineral Supplements Review

Best Multivitamins In 2023 -- Caution with Gummies

CL Answer

Is it possible to take too much vitamin C?

Find out the daily value of vitamin C, along with possible side effects of excessive vitamin C intake. ConsumerLab explores the topic of proper vitamin C supplement usage, and why taking too much can be harmful.

Bottles of vitamin C pills

CL Answer

When choosing a vitamin C supplement, should you look for one that is "reduced," "L" form (l-ascorbic acid), or "natural"?

Are supplements containing "natural" vitamin C, "reduced" vitamin C, or l-ascorbic acid better than regular vitamin c or ascorbic acid supplements? Find out if these forms are better absorbed or have other advantages, plus, learn about buffered and slow-release forms of vitamin C.

Forms of Vitamin C

CL Answer

Is Ester-C the best form of vitamin C?

Info on Ester-C Vitamin C, including which form of vitamin C is best, fully-reduced, liposomal and others based on absorption and side effects. ConsumerLab.com's answer explains.

Is Ester-C the Best Form of Vitamin C? -- bottle of Ester-C

CL Answer

Do vitamin C supplements help prevent cataracts?

Learn more about the link between vitamin C and cataracts, based on clinical evidence.

Does Vitamin C Prevent Cataracts? -- bottle of vitamin C

CL Answer

Is liposomal vitamin C (sold as Lypo-Spheric) better than other forms of vitamin C?

Liposomal vitamin C information, including absorption facts and current evidence.

CL Answer

Can vitamin C reduce the pain of shingles?

Can taking vitamin C for shingles help reduce pain and post-shingles pain, otherwise known as post-herpetic neuralgia? ConsumerLab.com's answer explains.

Vitamin C for Shingles (Herpes Zoster) ? -- Doctor's Notes With Shingles Diagnosis Written On It

CL Answer

Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?

Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.

Supplements for Coronavirus (COVID-19)? -- mask and pills

Product Review

Protein Powders, Shakes, and Meal Replacements Review

Find Out Which Protein Products Passed or Failed Our Tests

Product Review

Collagen Supplements Review

See our Top Picks for Wrinkles and Joints

Product Review

Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)

Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.

Greens Review Oct 2023

CL Answer

Can vitamin C from a supplement cause blood in the urine and painful urination?

Find out if vitamin C supplements can cause bloody or painful urination, or if this is due to contamination.

Vitamin C

Product Review

Vision Supplements Review (with Lutein, Zeaxanthin & AREDS2 Formulas)

Find the Best Vision Supplement Based Our Tests

Product Review

Iron Supplements Review (Iron Pills, Liquids and Chews)

See Which Iron Supplements Are CL's Top Picks for Different Needs

Product Review

Electrolytes & Sports Drinks Review

See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes

CL Answer

Does Z-Stack multivitamin work to boost the immune system, and is it safe?

Find out about Z-Stack, including if it can help boost the immune system and if it is safe to use at the suggested dose.

A bottle of Z-Stack capsules

CL Answer

Does taking vitamin C (1,000 mg) deplete copper in the body?

Find out if taking vitamin C supplements can deplete copper levels in the body and cause copper deficiency. ConsumerLab.com's answer explains.

Does Taking Vitamin C Deplete Copper Levels? -- Oranges and Vitamin C Tablets

Product Review

Joint Health Supplements for Pets Review (Glucosamine, Chondroitin, MSM & Boswellia)

See Which Pet Supplements for Joint Health Passed Our Tests and Which Didn't!

Joint Health Supplements for Pets

Product Review

Tuna, Salmon, Sardines & Herring Review (Canned and Packaged)

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Product Review

Oat Cereals Review

Find the Best Oatmeal, Oat Bran, Steel Cut Oats, & Cold Cereals. Popular Oat Cereals Tested -- Beware of Unexpected Gluten.

Oat Cereals Tested by ConsumerLab.com

Product Review

Nutrition Bars & Cookies Review (For Energy, Fiber, Protein, Meal Replacement, and Whole Foods)

Find the Best Nutrition Bar or Cookie. ConsumerLab Tests Reveals Not All Nutrition Bars and Cookies Contain What They Claim.

Nutrition Bars Reviewed by ConsumerLab.com (Energy, Fiber, Meal Replacement, Protein, and Whole Food Bars)

Product Review

Zinc Supplements and Lozenges Review

Find the Best Zinc Supplements and Lozenges. Have a Cold? See CL's Top Picks Among Zinc Supplements and Lozenges.

Zinc Supplements and Lozenges Reviewed by ConsumerLab.com

Product Review

Dark Chocolates, Cocoa & Cacao Powders, Nibs, and Supplements Review -- Sources of Flavanols

Is Your Chocolate or Cocoa Healthful or Toxic? Find the Best Dark Chocolate, Cocoa Powder and Cocoa Supplements Based On Our Tests.

Product Review

Elderberry Supplements Review

Find the Best Elderberry Supplement. Tests and Reviews of Popular Elderberry Supplements & CL's Top Picks.

Elderberry Supplements Reviewed by ConsumerLab.com

Product Review

D-Mannose Supplements

Find out if D-mannose helps prevent urinary tract infections and how products compare.

D-Mannose Review 2023

CL Answer

Could taking vitamin C (500 mg), CoQ10, grape seed extract, fish oil, vitamin D3/calcium/magnesium/zinc interfere with taking beta-sitosterol with dinner?

Learn about drug interactions & proper dosages for supplements such as CoQ10, vitamin D & C, fish oil, magnesium, zinc and grape seed extract.

Doctor Holding Handful of Fish Oil

Product Review

Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)

One-Third of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and our Top Picks.

Review of Supplements for Joint Pain

CL Answer

Which supplements help reduce the risk of colorectal cancer?

Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.

Supplements and Colorectal Cancer Risk -- colon cancer diagnosis form and supplements

Product Review

Vitamin E Supplements Review

Find the Best Vitamin E Supplement. Tests and Reviews of Popular Vitamin E Supplements & CL's Top Picks.

Vitamin E Supplements, Cream, and Oil Tested by ConsumerLab.com

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

Lion's Mane and Chaga Supplements tested by ConsumerLab.com

News Release

February 26, 2024

Latest ConsumerLab Survey Shows Growth in Popularity of Magnesium and Several Smaller Supplements

White Plains, New York, February 26, 2024 — A recent survey of more than 10,000 people who regularly use dietary supplements shows that supplements that experienced the greatest absolute growth in popularity during 2023 were pregnenolone (+7.5 percentage points), magnesium (+4.8 pts), berberine (+4.

News Release

February 25, 2024

Top-rated Vitamin and Supplement Brands and Merchants for 2024 Based on Consumer Satisfaction

White Plains, New York, February 25, 2024 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 10,000 responses collected in November/December 2023.

News Release

December 13, 2023

Best Vitamin C Supplements? ConsumerLab Selects Its Top Picks

White Plains, New York, December 13, 2023 —  It’s officially cold season in the U.S., a time when many people may turn to vitamin C supplements to help “boost” their immune system and ward off colds.

Product Review

Green Tea Review: Tea Bags, Matcha Powders, and Supplements

Some green teas provide barely any green tea polyphenols, while some others are high strength. See the Test Results and Our Top Picks for Green Tea.

Green Tea Review 2024

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

Product Review

Coconut Waters Review

Best Coconut Water? See Our Tests and Comparisons of Popular Brands Looking at Sugar, Electrolytes, Taste and Price.

Coconut Waters Reviewed by ConsumerLab.com

CL Answer

I've been taking a Daily Advantage multi but am now concerned by the very high % DV for vitamin C (833% DV), niacin (325% DV), and B vitamins (over 1,000% DV for several). What do you think?

Learn about the safety of taking multivitamins containing far more than Daily Values, including upper and lower limits for nutrients.

Product Review

B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)

See Which B Vitamins Are ConsumerLab's Top Picks!

Review of B Vitamin Supplements

Clinical Update

8/06/2014

When Vitamin C May Curb a Cold

A recent small study among men with low to adequate levels of vitamin C showed that supplementing with vitamin C reduced the incidence of colds compared to placebo. The men taking vitamin C also reported having more energy -- although this finding was not statistically significant. Learn more about what vitamin C can and cannot do, the dose used in this study, and results of our tests of vitamin C supplements, in the update to the Vitamin C Supplements Review >>

CL Answer

Which supplements have been shown to be helpful for autism?

Find out which supplements may help reduce symptoms of autism, including multivitamins, probiotics, and melatonin.

Bottle and Pills Spread Out on Blue Background

CL Answer

Are antioxidant supplements good or bad for you?

Learn more about whether antioxidants like astaxanthin, beta-carotene, coenzyme Q10, curcumin, resveratrol, selenium, vitamin A, vitamin C and vitamin E are safe and if they help prevent chronic diseases.

Can Antioxidants Cause You to Die Sooner? -- antioxidant supplements and carrots

CL Answer

Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?

Learn more about the benefits of getting vitamins from food versus supplements, natural versus synthetic vitamins, and more.

Getting Vitamins and Minerals from Food vs. Supplements -- fruits, vegetables, and a spoon containing supplements on a table

CL Answer

Which vitamins and supplements should be stopped before getting blood work and laboratory tests?

Find out which vitamins and supplements can interfere with blood, urine or stool tests, and imaginging tests. Learn how B vitamins such as biotin, niacin and riboflavin, as well as calcium supplements, St. John’s wort, vitamin C, and others supplements can affect test results, as well as common foods that may interfere with tests.

Vitamin & Supplements to Stop Before Blood Tests

Product Review

Cranberry Juices and Supplements Review

CL's Tests Show Which Cranberry Juices and Supplements Are Best and Cost the Least

Product Review

Quercetin & Rutin Supplements Review

Quality's a Concern With Quercetin and Rutin Supplements -- Only 17% of Claimed Amount In One

Product Review

Astaxanthin Supplements Review

See Which Astaxanthin Products Passed or Failed CL's Tests

Astaxanthin supplements reviewed by ConsumerLab.com

CL Answer

Which supplements and foods reduce or increase the risk of kidney stones?

Find out which supplements, foods and beverages may increase or decrease the risk of kidney stones, including information about potassium, calcium, choline, turmeric and curcumin, vitamin C, as well as foods and beverages such as green tea, lemon juice, orange juice, cranberry juice, chocolate and almonds.

Supplements for Kidney Stones

CL Answer

Which supplements can help to lower blood pressure?

Supplements to lower blood pressure, including CoQ10, vitamin C, fish oil, and olive oil, are all explored to find out what works.

Supplements that can lower, or raise blood pressure -- blood pressure cuff and bottle of pills

CL Answer

Do any supplements help for flu?

Which supplements may help prevent or reduce symptoms of colds or the flu, including vitamin D, ginseng, NAC, and elderberry.

Supplements for Flu -- women with the flu sitting on couch with tissues, thermometer, warm drink

CL Answer

Do any supplements help with gum disease or periodontitis?

Supplements for healthy gums may help with gum disease or periodontitis. Learn more about omega fatty acids, lycopene, and probiotics.

Smiling Woman Taking White Supplement with Glass of Water

Clinical Update

1/31/2020

Not Enough Vitamin C

Vitamin C deficiency is known to cause scurvy, characterized by bleeding gums and other connective tissue problems. But vitamin C deficiency was recently reported to cause a very different array of symptoms in several people. Learn more in the What It Does section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C.

Clinical Update

9/22/2018

Vitamin C and Prostate Cancer

Does taking vitamin C reduce the chance of developing prostate cancer? Find out what studies are showing, including one reported this month, in the What It Does section of the Vitamin C Supplements Review. (Also learn about vitamin C and cataracts and see our Top Picks for vitamin C.)

Clinical Update

12/21/2021

Vitamin C for Mood?

Can vitamin C from the diet or supplements help boost mood, including symptoms of depression? Find out what current evidence suggests in the Vitality and Mood section of our Vitamin C Supplements Review, which includes a list of foods high in vitamin C and our Top Picks for vitamin C.

Clinical Update

10/16/2020

Vitamin C for Vitality?

Can taking a vitamin C supplement or eating a vitamin C-rich food improve mood, energy, or overall well-being? Find out what a recent study showed in the What It Does section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C.

CL Answer

What are omega-7 fatty acids? Do I need to take these if I already take fish oil?

Learn what omega-7 fatty acids are and if you need to also take them while taking fish oil. See the varying amounts of omega-7 fatty acids in fish and krill oil supplements.

Fish Oil

CL Answer

Do any supplements or foods help prevent sunburn or skin damage from sun exposure? Can any increase your risk of sun-related skin damage?

Find out which supplements may help protect from sunburn and sun-related skin damage, including beta-carotene, vitamins A and C, and cocoa.

Dermatologist examining the skin on the back of an older woman for signs of sun damage or skin cancer

CL Answer

Are gummy vitamins better or worse than pills?

Learn more about gummy supplements, including those for multivitamins, vitamins C and D, calcium, and B vitamins.

Problems With Gummy Vitamins -- bottle of gummy vitamins

Product Review

CoQ10 and Ubiquinol Supplements Review

Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ

CoQ10 2024

CL Answer

Which vitamins and minerals should be taken together or separately?

Find out the best way to take vitamins and minerals and which vitamins and minerals should be taken together or separately for proper absorption. ConsumerLab answer explains the best way to take vitamins and minerals.

Vitamins & Minerals That Should Be Taken Together or Separately -- various vitamins in spoons

Recalls & Warnings

June 04, 2020

FTC Warns 35 More Companies for Coronavirus Claims

On June 4, 2020, the FTC announced that it sent warning letters to 35 companies for selling products such as herbal products, immune system boosters, and vitamin C with unsupported claims that they can treat coronavirus (COVID-19).

CL Answer

Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?

Find out if certain vitamins, supplements and foods such as fish oil, olive oil, vitamin C and others, can help reduce the risk of breast cancer. ConsumerLab.com's answer explains.

Supplements & Breast Cancer Risk -- doctor holding pink breast cancer awareness ribbon

CL Answer

How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?

ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.

A pouch of AG1 on white background

Product Review

Seaweed Snacks and Foods Review

Tests Reveal Seaweed Snack Risks

Clinical Update

10/31/2020

Vitamin C for COVID-19?

Does high-dose vitamin C help people critically ill with COVID-19? Find out what a new report showed in the COVID-19 section of our Vitamin C Supplement Review. Also see our Top Picks for vitamin C.

Clinical Update

2/03/2021

Vitamin C for Bleeding Gums?

Does vitamin C supplementation reduce the tendency for gums to bleed? Find out what research shows in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks for vitamin C.

Clinical Update

11/23/2021

Vitamin C Serums for Wrinkles?

Can applying vitamin C to the skin reduce wrinkles or help prevent sun damage? Find out in the Skin Health section of our Vitamin C supplements review.

Also learn what features you should look for if selecting a vitamin C serum.

Clinical Update

9/17/2021

Vitamin C For Fatty Liver?

Can taking high-dose vitamin C improve liver function or insulin resistance in people with NAFLD (non-alcoholic fatty liver disease)? Find out what a recent study showed in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks among vitamin C supplements.

Clinical Update

10/03/2020

Vitamin C for Foot Ulcers?

Can taking vitamin C help heal foot ulcers in people with diabetes or vascular disease? Find out what a new study showed in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks for vitamin C.

Clinical Update

2/12/2019

Vitamin C for Blood Sugar Control

High-dose vitamin C was found to help control blood sugar levels in people with type 2 diabetes in a recent study. For details, see the What It Does section of the Vitamin C Supplements Review. Also see our latest Top Picks for vitamin C.

Clinical Update

8/03/2018

Vitamin C for Colds?

Taking vitamin C may modestly help with colds, according to a new study -- but there's a catch. Find out in the What It Does section of the Vitamin C Supplements Review. (Also see our Top Picks for vitamin C supplements.)

Clinical Update

2/11/2020

Vitamin C & Lungs

Supplementing with vitamin C to correct deficiency can reverse a form of lung disease, as exemplified in a recent report. For details, see the What It Does section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C.

Clinical Update

12/03/2019

Vitamin C and Kidney Damage

High doses of vitamin C have been reported to cause a form of kidney damage, although this is more common in people with certain pre-existing medical conditions. For details, see the Concerns and Cautions section of the Vitamin C Supplements Review. Also see our Top Picks for vitamin C supplements.

Clinical Update

7/23/2016

Vitamin C and Breast Cancer

Higher intakes of vitamin C from foods are linked to lower risk of postmenopausal breast cancer in women, but getting vitamin C from supplements on top of that may increase the risk, says a new study. Get the details in the Vitamin C Supplements Review >>

Clinical Update

8/03/2016

Is Ester-C Better?

One of the forms of vitamin C in supplements is Ester-C. In addition to being non-acidic, a recent study suggests another possible benefit over regular vitamin C (ascorbic acid). Get more information about this and other forms of vitamin C in the "ConsumerTips" section of the Vitamin C Supplements Review >>

Clinical Update

9/09/2015

Vitamin C: The Exercise Replacement?

A small clinical study recently found that taking vitamin C had a positive effect on blood vessels similar to a daily walk. The study focused on overweight and obese individuals, in whom blood vessel tone is compromised. Long-term effects were not studied. Get details about the study (including dose) and other pros and cons of vitamin C in the Vitamin C Supplements Review >>

Clinical Update

4/30/2012

Vitamin C and Blood Pressure

Vitamin C supplements may modestly reduce blood pressure, particularly among people with elevated blood pressure, according to a review of the latest clinical studies. Get the details, as well as our tests of vitamin C supplements, in the updated Vitamin C Supplements ReviewMore >>

Clinical Update

4/25/2023

Vitamin C for Colds?

Does vitamin C shorten the duration of colds? Get the details, and learn about one study that was recently retracted. See the Colds and immune system health section of our Vitamin C Supplements Review.

Also see our Top Picks among vitamin C supplements.

Clinical Update

10/27/2023

Vitamin C & COVID

Did large, frequent doses of vitamin C help people hospitalized with COVID? Find out in the COVID-19 section of our Vitamin C Review. Also see our Top Picks for vitamin C.

Clinical Update

4/26/2022

Vitamin C & Mortality

Higher blood levels of vitamin C were associated with increased risk of death over a 10-year period in a recent study. Get the details in the Concerns and Cautions section of our Vitamin C Supplements Review. Also see adequate intake amounts for vitamin C.

CL Answer

I am 70 a year male in relatively good health. I plan on walking the Camino in France (500 miles). I am looking for a multivitamin that would best supply me with my needs during this walk/hike. What would be the best product or combination of products to use?

Find out if older adults who walk or hike should take a multivitamin, vitamin C, vitamin D, or other supplements, like electrolytes, when hiking. Plus, see our advice for choosing a good sunscreen.

Hiking 8

CL Answer

What is Perque Bone Guard Forté? It is safe and effective for bone health?

Find out about the ingredients in Perque Bone Guard Forté, including which ingredients may be beneficial for osteoporosis and bone health and which may be a safety concern.

Bottle of Perque Bone Guard Forte

CL Answer

What are the health benefits of amla and is it safe?

Learn about amla (Indian gooseberry), including its potential health benefits and possible safety concerns.

Amla supplement capsules being poured onto a wooden table with amla fruit in the background

CL Answer

Are intravenous (IV) vitamin infusions safe and effective?

Intravenous (IV) vitamin infusions are touted by celebrities and promoted by wellness clinics for numerous conditions. Find out if they work and if they are safe.

Woman holding her phone while getting an iv vitamin infusion

CL Answer

Can biotin supplements really strengthen nails or improve hair? Can other supplements help?

Learn more about strengthening brittle nails with vitamin B-7 (biotin), based on clinical evidence.

Supplements for Brittle Nails -- healthy nails

Product Review

Plant-Based Milks Review (Almond, Cashew, Coconut, Flax, Hemp, Macadamia, Oat, Pea, and Soy)

Find the Best Non-Dairy Milk Alternative. ConsumerLab Tests Reveal What's Really In Plant-Based Milks.

Plant Based Milks reviewed by ConsumerLab.com

Recalls & Warnings

June 20, 2020

FTC Warns 30 More Companies for Coronavirus Claims

On June 18, 2020, the FTC announced that it sent warning letters to 30 companies for selling products such as immune system boosters, colloidal silver, vitamin C, and CBD with unsupported claims that they can treat coronavirus (COVID-19).

Product Review

Inactive Ingredients / Excipients in Supplements

Find Out Why Coloring Agents, Sweeteners, Fillers & Other Inactive Ingredients Are In Your Supplements and If They're Safe.

CL Answer

Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?

Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.

Supplements for Hair Loss -- woman looking at hairbrush

News Release

July 13, 2023

Best Vision Supplements According to ConsumerLab Tests

White Plains, New York, July 13, 2023 —  Studies show that supplements containing lutein, zeaxanthin, zinc, and other ingredients can help slow the progression of age-related macular degeneration, which is the leading cause of blindness in adults over age 60.

Product Review

Chia Seed Review — Whole, Ground, and Sprouted Seed, Seed Flour, & Supplements

Find the Best Chia Seeds, Sprouted Chia Powder, Flour, and Chia Supplements. Tests and Reviews of Chia Seeds & CL's Top Picks.

Chia supplements reviewed by ConsumerLab.com

Product Review

L-Arginine Supplements Review

Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.

L-Arginine Supplements Reviewed by ConsumerLab.com

CL Answer

Do any supplements help treat or reduce the pain of plantar fasciitis (heel pain)?

Plantar fasciitis causing heel pain has, in rare cases, been reported as a symptom of vitamin D deficiency. Other supplements that have been proposed to help include vitamin C, zinc, curcumin (from turmeric), bromelain, collagen and glucosamine. Find out what the evidence shows, and what other treatments may help.

Supplements for Plantar Fasciitis -- Woman With Heel Pain

CL Answer

Which supplements are helpful to have when traveling? Any tips on how to best store supplements on trips?

Find out which vitamins & supplements can be helpful when traveling, including melatonin, ginger, and more, and find out how you can carry them with you.

CL Answer

Do glutathione supplements work to prevent aging or for other conditions?

Do glutathione supplements help with aging or other conditions such as cancer and diabetes?

Spoon filled with glutathione supplement capsules and held over a white plate

CL Answer

I thought the B vitamins were all water soluble and did not build up in the body, so you would not build up toxic levels. Am I wrong?

Learn more about water-soluble B vitamins including niacin, B6, B12 and folic acid, and why taking too much of these vitamins can be toxic. See the symptoms of overdose and toxicity from B vitamins. ConsumerLab.com's answer explains.

B Vitamins

CL Answer

Which supplements should be taken with food?

Find out which supplements should be taken with food, including vitamins A, D, E, and K, fish oil, and CoQ10.

Woman holding a pill and showing it to a man while sitting at a table about to eat a meal

Clinical Update

9/05/2021

Vitamin C & Statins

Does taking vitamin C reduce the cholesterol-lowering effects of statins? Find out in the What to Consider When Using section of our Vitamin C Supplements Review.

Clinical Update

1/13/2021

High-Dose Vitamin C for COVID-19?

Does high-dose vitamin C help in people with severe COVID-19? See what a new study showed in the COVID-19 section of our Vitamin C Supplements Review.

Clinical Update

12/09/2018

Vitamin C and Kidney Damage

High doses of vitamin C can cause kidney stones and damage kidneys. People with certain diets or medical conditions may be more prone to these problems. Get the details, including those of a recent case, in the Concerns and Cautions section of the Vitamin C Supplements Review.

Clinical Update

6/17/2022

Vitamin C & Kidney Stones

High intake of vitamin C has been linked with an increased risk of kidney stones, but is the risk similar among men vs women?

Clinical Update

9/16/2022

Caution with Vitamin C for COVID

Taking very high-dose vitamin C doesn’t seem to provide protection against COVID-19 and it may increase the rate of kidney stones, according to recent data. Get the details in the Vitamin C section of our CL Answer about Supplements and COVID-19.

Clinical Update

5/03/2022

Vitamin C & Blood Thinners

Is it safe to take vitamin C if you take anticoagulants like warfarin? See the answer in the Concerns and Cautions section of our Vitamin C Supplements Review.

Clinical Update

4/11/2023

Do Antioxidants Reduce Exercise Gains?

Does supplementing with high doses of vitamin C and/or vitamin E hinder beneficial changes that occur during high-intensity interval training? Find out what a recent study showed in the Concerns and Cautions section of our Vitamin C Supplements Review.

Also see our Top Picks for vitamin C.

Product Review

Baobab Dried Fruit Pulp Review Article

What Are the Benefits of Baobab Dried Fruit Pulp? Find Out What's In Baobab Super Fruit Products, Safety, Side Effects & More.

Baobab Dried Fruit Pulp Reviewed by ConsumerLab.com

Product Review

Weight Loss Supplements Review (7-Keto DHEA, Forskolin and Stimulant Blend Supplements)

Choose the Best Weight Loss Supplement. Be Careful With Weight Loss Supplements — Few Pass Quality Testing and Safety Review.

Weight Loss Supplements Tested by ConsumerLab.com

Product Review

Bone Broth Review

Find the Best Bone Broth. Find Out How Much Collagen and Sodium Is Really In Popular Bone Broths.

Bone Broth Supplements Reviewed by Consumerlab.com

Product Review

Echinacea Supplements Review

Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!

Echinacea supplements reviewed by ConsumerLab.com

Product Review

Aloe Juices, Gels, and Supplements Review

How Much Aloe is Really in Aloe Products? Find Out and See Our Top Picks.

CL Answer

Do any supplements help prevent or improve cataracts?

Find out which supplements may help with cataracts, including selenium and vitamins A, B1, B3, C, and E.

Doctor Shining Light for Patient Eye Exam

CL Answer

Do diamine oxidase (DAO) supplements for histamine intolerance really work?

DAO supplement info for histamine intolerance, including diamine oxidase safety, evidence from clinical studies, and dosage.

Person in Pink Shirt Scratching Arm

CL Answer

I'm thinking of changing my multivitamin, but the one I'm considering doesn't contain molybdenum. Most others have it. How important is molybdenum?

Learn more about the essential nutrient molybdenum, including foods that contain it and possible deficiency.

Women Holding Glass in One Hand and Vitamins in the Other

CL Answer

I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements or foods I should avoid, or be taking, due to this drug?

Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.

Levothyroxine (Synthroid) Supplement Interactions

Product Review

Probiotic Supplements Review (Including Pet Probiotics)

Probiotics: See What They Really Contain and Our Top Picks

CL Answer

When taking a statin drug like Lipitor or Crestor, are there supplements I should avoid or take?

Learn about the interactions between certain supplements and atorvastatin (Lipitor), rosuvastatin (Crestor), and other cholesterol-lowering statins.

Statin Interactions With Supplements -- close-up of statin medication box and tablets

CL Answer

My doctor told me to stop taking supplements because my kidney function was low. After stopping, my kidney function returned to normal. Can taking a lot of supplements really damage the kidneys?

Find out which supplements may damage your kidneys. ConsumerLab explores possible kidney side effects of supplements including chromium, creatine, and vitamin C.

Can Supplements Really Damage Your Kidneys? -- Woman with kidney pain

Product Review

Alginate Supplements Review (For Reflux)

See Our Top Pick Alginate Supplements For Reducing Symptoms of Gastroesophageal Reflux (GERD)

Alginate supplements reviewed by ConsumerLab.com

Recalls & Warnings

April 14, 2020

FTC Warns Companies Selling Immune "Boosters," Vitamin C and More for Coronavirus Claims

On April 14, 2020, the FTC announced that it has sent warning letters to ten companies for selling products such as immune boosters, silicone facial brushes, air purifiers, and intravenous vitamin C with unsupported claims that they can treat coronavirus (COVID-19).

CL Answer

Which supplements can cause diarrhea?

Can supplements like magnesium cause diarrhea? Find out which supplements may cause diarrhea, such as vitamin B12, curcumin, magnesium, vitamin C and fish oil.

Which supplements can cause diarrhea? -- Woman with gastrointestinal pain

CL Answer

Do any supplements help prevent or reduce eye floaters?

Find out eye floaters (vitreous floaters) be treated with supplements like vitamin C, lutein, ginkgo, milk thistle, collagen or hyaluronic acid, or with products such as VitreousHealth.

How to Reduce Eye Floaters With Vitamins & Supplements -- Close-up of an eye

CL Answer

What are the benefits of grape seed extract?

Learn about the health benefits of grape seed extract, and find out it improves venous insufficiency, leg swelling, swelling after surgery, or can help to lower blood pressure.

Benefits of Grape Seed Extract -- grapes and seeds

Recalls & Warnings

May 19, 2020

FDA Warns Sellers of CBD, Kratom, Vitamin C, and More for Coronavirus Claims

Between May 11 and May 14, 2020, the FDA issued warning letters to five companies for selling products such as vitamin C, immune boosters, kratom, and CBD with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

May 23, 2020

FTC Warns 50 More Companies for Coronavirus Claims

On May 21, 2020, the FTC announced that it sent warning letters to 50 companies for selling products such as herbal products, immune system boosters, and vitamin C, with unsupported claims that they can treat coronavirus (COVID-19).

Product Review

Calcium and Bone Health Supplements Review (Including Vitamins D & K, Magnesium and Boron)

See Which Bone Health Supplements Are Top Picks and Which Fail

CL Answer

What is Lipo-flavonoid and does it work for tinnitus or other ear problems?

Lipo-flavonoid Plus info, including ingredients & reliability of claims to improve ear ringing (tinnitus), vertigo, ear aches, ear infection, and Meniere's disease.

Lipo-Flavonoid & Ear Problems -- Man with ear pain

CL Answer

I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?

Find out which supplements should be avoided when taking blood thinners (anticoagulants) like warfarin (Coumadin), including vitamin K, St. John's wort, and curcumin.

Warfarin Supplement Interactions -- bottle of pink warfarin tablets

CL Answer

Which supplements reduce hearing loss?

Can supplements such as alpha-lipoic acid, magnesium, N-acetyl-cysteine, folate or vitamins B-12, C and/or E help prevent or improve symptoms among people with hearing loss due to excessive noise or aging? Find out what the clinical evidence shows, and learn whether Advanced Hearing Formula, a supplement marketed for ear health, is likely to help.

Older man holding his hand up to his ear due to hearing loss

Product Review

Ginseng Supplements Review

Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.

Ginseng Supplements Reviewed by ConsumerLab

Product Review

Choline and Lecithin Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)

Recalls & Warnings

December 31, 2020

FDA Warns Seller of Liposomal Vitamin C, Vitamin D & More

On December 21, 2020, the FDA issued a warning letter to Sparrow Health & Performance LLC for selling the products Organic Liposomal Vitamin C, Nanoemulsified D3K2 (also called Liquid Liposomal Vitamin D3 with K2 or Liposomal Vitamin D3) and Immune Support ...

CL Answer

Which ingredients should toothpastes and other dental products contain, and which should be avoided?

Learn about ingredients you want in your toothpaste, mouthwash and other dental products and which ingredients you may want to avoid.

Toothpaste in the shape of question mark coming out from toothpaste tube

CL Answer

Can any supplements reverse gray hair?

Nearly 75% of adults aged 45 to 65 are affected by gray hair. Learn about what causes gray hair and find out if any supplements can help.

A young woman shows gray hair on her head on a white background

CL Answer

Which "whole food" multivitamins don't include synthetic vitamins? How about Complete Foods, Sunwarrior, Garden of Life, Nature's Brands, and Doctors' Research?

Find out which "whole food" multivitamins are only from foods and which include synthetic vitamins, including Complete Foods Nutrition-OctoMega MultiVitamin; Sunwarrior; Garden of Life-MyKind Organics; Nature's Brands-PhytoVitamins; Doctors' Research MultiVitamin.

Fresh Broccoli and Lemon Beside Multivitamins

CL Answer

How much should I expect to pay for supplements? Are higher-priced supplements any better than low-priced brands?

Learn about the cost of supplements. Info including the best pricing on fish oil, CoQ10, vitamins C & D, magnesium, and calcium.

Cost and Quality of Dietary Supplements -- supplement bottles on store shelves

Clinical Update

2/07/2014

Vitamins C & E Blunt Exercise Effect

A recent study found that giving high-dose vitamin C or vitamin E to people involved in intensive exercise training blunted cellular changes thought to be important for improving muscular endurance. These and similar results recently reported with resveratrol raise concerns about high-dose antioxidant supplementation during exercise training. For details, see the updates to the "Concerns and Cautions" sections of the Vitamin C Supplements Review >>  and the Vitamin E Supplements Review >> 

Clinical Update

3/26/2019

Vitamin C Blunts Exercise Benefits

If you are trying to build muscle with resistance exercise, go easy on vitamins C and E, according to a recent study. Get the details in the Concerns and Cautions section of the Vitamin C Supplements Review.

Clinical Update

6/09/2013

Vitamin C: Does It Fight Colds?

A new analysis says it can help — a little. Get the bottom line, plus test results for 27 products, in the updated Vitamin C Supplements Review >>

Clinical Update

11/04/2020

Vitamin C to Boost Iron?

Vitamin C is often touted to boost iron absorption. But does it really work? Find out what a recent study found in the ConsumerTips section of our Iron Supplements Review. Also, see our Top Picks for iron.

Clinical Update

8/05/2022

Vitamin C or Melatonin for COVID?

Find out if supplementing with vitamin C or melatonin reduced symptoms in people with mild to moderate COVID in a recent study.

Clinical Update

8/22/2023

Sodium Benzoate and Benzene

Vitamin C can promote the conversion of sodium benzoate, a preservative, to benzene, a toxic chemical. Should you be worried about consuming products such as lemon juice (a source of vitamin C) preserved with sodium benzoate? Find out in the Preservatives section of our article about Inactive Ingredients.

CL Answer

Do any supplements help for varicose veins or chronic venous insufficiency?

Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.

Varicose Veins

CL Answer

How are you staying healthy during the coronavirus pandemic?

Tips for staying healthy during the coronavirus (COVID-19) pandemic. Tips from ConsumerLab members for maintaining physical health, mental health and social well-being during COVID-19.

Staying Healthy During the Coronavirus Pandemic -- Couple at Home, Looking Out the Window

CL Answer

How likely are Americans to be deficient in vitamins or minerals?

Read info based on the CDC about vitamin deficiencies such as vitamin A, B-6, B-12, C, D, and E, folate, and iron in the United States.

Vitamin Deficiency in Men and Women -- doctor's clipboard with information about vitamin deficiency

CL Answer

3 Tips to Prevent Powdered Supplements from Clumping

Learn more about how powdered supplements compare to capsules and if clumping is worrisome.

Powdered Supplements

Product Review

Mangosteen Juice and Supplements Review Article

What Are the Benefits of Mangosteen Juice and Supplements? Find Out What Mangosteen Can and Cannot Do For Your Health.

CL Answer

Which supplements and foods help with gout and which may worsen it?

Find out about the effects on uric acid levels and gout of fish and fish oil, coffee, beer, animal meat, milk proteins, vegetable proteins, fructose, lemon juice, tart cherry juice, vitamin A, vitamin C, and niacin

Woman with gout pain rubbing her foot near the big toe

Product Review

Acai Berry Supplements and Beverages Review

Find the Best Acai Berry Supplements and Beverages. See Which Acai Berry Supplements and Beverages Passed Our Tests of Quality.

Acai berry supplements and beverages reviewed by ConsumerLab.com

Product Review

Lactose Intolerance Products Review (Lactase Enzyme Supplements and Lactose-Free Milks)

Choose the Best Lactase Enzyme Supplement and Lactose-Free Milk. Find a CL Approved Lactose Intolerance Product.

Lactase Supplements Reviewed by ConsumerLab.com

Product Review

Magnesium Supplements Review (Including Calcium, Boron, and Vitamins D & K)

Find Out What Magnesium Does, Who Needs It, and Our Top Picks Among Supplements

News Release

March 30, 2023

ConsumerLab Tests Show Not All Quercetin and Rutin Supplements Contain What They Claim

  White Plains, New York, March 30, 2023 — Quercetin is a plant compound found in its natural form, rutin, in foods such as capers, onions, and kale.

CL Answer

Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Find out if supplements such as vitamin E, fish oil, milk thistle, curcumin, choline, probiotics, vitamin D, reishi mushroom, or extra virgin olive oil are beneficial for fatty liver disease and learn which diet (Mediterranean, ketogenic, DASH, or fasting diets) seems to have greatest benefit.

Overweight man holding his right side near his liver

CL Answer

Can CoQ10 or ubiquinol be ruined by heat? I recently purchased several bottles of Qunol Plus from Costco.com and they arrived hot. The soft gels are not melted, but I am concerned.

Find out whether your CoQ10 or ubiquinol supplement can be destroyed by heat during shipping and at what temperature CoQ10 softgels can melt. ConsumerLab.com's answer explains.

Box of Vitamins and Supplements

CL Answer

Do vitamins, minerals or other supplements lose effectiveness with exposure to high temperatures?

Are vitamins and supplements susceptible to heat? Find out if mail ordering during the summer is safe.

Heat's Effect on Supplements in the Mail -- Woman receiving a package

Product Review

Sexual Enhancer Supplements Review (with Yohimbe, Horny Goat Weed, Arginine)

Choose the Best Sexual Enhancer Supplement. Only 30% of Selected Sexual Enhancement Supplements Pass Quality Tests.

Recalls & Warnings

December 02, 2020

Seller of Vitamin C, Elderberry, Silver, and More Warned for COVID-19 Claims

On November 10, 2020, the FDA issued a warning letter to Sage Woman Herbs, Ltd.

Recalls & Warnings

May 09, 2020

FTC Warns 45 More Companies for Coronavirus Claims

On May 7, 2020, the FTC announced that it sent warning letters to 45 companies for selling products such as herbal products, immune system boosters, and vitamin C with unsupported claims that they can treat coronavirus (COVID-19).

CL Answer

Can cranberry juice or cranberry supplements help prevent urinary tract infections or improve overactive bladder?

Learn more about how cranberries, juice, and supplements can help prevent urinary tract infections, including safety.

Cranberry Juice for UTIs? -- cranberries and a glass of cranberry juice

CL Answer

Do any supplements help prevent or treat a cold?

Are there supplements that can help prevent or treat cold symptoms? Learn more about zinc, probiotics, vitamin C and more.

Supplements for Colds: Zinc, Echinacea & More -- Couple with cold, sitting on couch blowing their noses

CL Answer

Are there supplements that interact with estrogen-replacement therapies like Premarin and Estrace?

Estrogen hormone replacement therapy pills, creams, and tablets, such as Premarin, Estrace, Imvexxy, Ogen, and Vagifem can interact with certain supplements and foods, including St. John's wort and grapefruit juice. Learn more.

Supplement Interactions with Estrogen replacements

CL Answer

Are the "% DV" numbers on vitamin supplement labels really based on what I need?

Learn more about percent daily values, including if they are good standards of measure or if better upper and lower limits exist.

Supplement Facts on Back of Supplement Bottle

CL Answer

Are liquid or gummy vitamins better than tablets, capsules or softgels?

Find out if liquid or gummy vitamins and supplements are better than tablets, capsules or softgels, are better absorbed, or better for people who have had gastric bypass or who have other conditions.

Are Liquid Vitamins Better? -- liquid vitamin bottle and dropper

Clinical Update

8/25/2013

Antioxidants: Too Much of a Good Thing?

A new, long-term study of Americans found the risk of dying over the course of the study (about 14 years) was lowest when antioxidant levels in the blood were above the lowest levels (the bottom 20% of the population). However, for people in the top 20% of blood levels for vitamins A and E, the risk of death increased compared to people with moderate levels. For selenium and beta-carotene, there was no significant difference in the death rate between moderate and high levels, although for vitamin C some additional benefit was seen at high, but not the highest, levels.
 
The results suggest that antioxidant supplements may be useful for those who are nutritionally deficient, but, as noted by the researchers, "beyond a certain threshold, higher levels do not lead to additional benefit, and may potentially be toxic." More details (including specific serum levels) are found in the linked updates to the following reviews, which include our test results and quality ratings of products:
 
 
  
  

Product Review

Vitamin D Supplements Review (Including Calcium, Magnesium, Boron, and Vitamin K)

Find the Best Vitamin D Supplement with the Right Dose

Recalls & Warnings

December 11, 2020

FDA Warns iThrive.health for Promoting Supplements as COVID-19 Treatments

On December 10, 2020, the FDA issued a warning letter to iThrive.health for promoting the sale of various vitamins and supplements on Amazon.com with claims that they can mitigate, prevent, treat, diagnose, or cure COVID-19.

CL Answer

Bee pollen: Purported health benefits and possible side effects

Bee pollen is promoted for numerous health conditions, including supporting immune health and boosting energy. Find out if it works and if it's safe.

A wooden spoon holding bee pollen granules over a table

Product Review

Green Coffee Bean Extract Supplements Review (for Weight Loss)

Choose the Best Green Coffee Bean Extract. 50% of Green Coffee Bean Extract Supplements Don't Deliver Expected Ingredients.

Green Coffee Bean Extract Supplements Reviewed by ConsumerLab.com

Product Review

Bilberry Supplements Review

Choose the Best Bilberry Supplement. Some Bilberry Is Not Authentic!

Bilberry Supplements Reviewed by ConsumerLab.com

CL Answer

I do moderate exercise for about an hour a few times a week. Which supplements might help me, and which should I consider avoiding?

Info on what supplements are best for work out & exercise regimens, including electrolytes, protein, creatine, and BCAAs.

Supplements for Moderate Exercise

CL Answer

Does Qualia Mind boost memory and mental function and is it worth cost?

Learn about the ingredients in Qualia Mind, whether or not we think the formula works and is safe, and if we think it's worth the cost.

qualia-mind

CL Answer

What is desiccated beef liver? What is it used for, and is it safe?

Description of desiccated beef liver, including what it is used for, its nutrient content, and safety concerns.

Beef liver powder

CL Answer

Do any supplements help for irritable bowel syndrome (IBS)?

IBS supplements may help reduce irritable bowel symptoms such as pain, diarrhea and constipation. Supplements include probiotics, melatonin, and flaxseed.

Supplements for IBS? -- Women With Stomach Pain

CL Answer

Do any supplements help for restless legs syndrome?

Find out whether supplements or vitamins like iron, magnesium, vitamin E and others can help for restless leg syndrome (RLS). ConsumerLab.com's answer explains.

Supplements for Restless Legs Syndrome

Recalls & Warnings

December 11, 2020

Seller of "Dr. Hotze's Immune Pak" Products Warned for COVID-19 Claims

Seller of "Dr. Hotze's Immune Pak" Products Warned for Coronavirus Claims 

Recalls & Warnings

March 02, 2021

FDA Warns Seller of Vitamin C, Silver Spray

On March 1, 2021, the FDA issued a warning letter to Ageless Global, LLC following a review of the company's websites for selling Immunoral, Immune Plus, MD Immune Support Spray, and MD CVK-365 Mouth Spray with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

October 30, 2020

Seller of Vitamin C, Vitamin D, Ashwagandha, and More Warned for COVID-19 Claims

On October 23, 2020, the FDA issued a warning letter to Predator Nutrition for selling the products Elixir, Salidroside, Unbreakable, Vitamin C + Bioflavonoids & Rosehip, Vitamin D3, and Ashwagandha with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

June 05, 2020

Seller of Silver and Vitamin C Lozenges & More Warned for Coronavirus Claims

On June 1, 2020, the FDA issued a warning letter to Dr.

Recalls & Warnings

August 20, 2019

Seller of Liposomal Curcumin, Vitamin C & Melatonin Warned for Manufacturing Violations

On August 6, 2019, the FDA issued a warning letter to Let's Talk Health, Inc.

Product Review

Selenium Supplements Review

Choose the Best Selenium Supplement. Find Out If You Need Selenium and Which Supplement Is Our Top Pick.

Selenium Supplements Reviewed by ConsumerLab.com

Product Review

Boron Supplements Review (Including Calcium, Magnesium, and Vitamins D & K)

Is Boron Needed for Bone Health? Find Out and See Our Top Pick Among Supplements

CL Answer

What is the best sunscreen based on safety and efficacy?

Two different carcinogens, benzene and benzophenone have been found in popular sunscreens. These cancer-causing compounds are not listed on labels. Get the details and find out which sunscreens have been found to contain benzene and benzophenone.

Carcinogens in Sunscreens - Bottle of sunscreen with a question mark

Clinical Update

4/08/2017

Exercise Benefit Lost With High-Dose Vitamins

Older men asked to perform resistance (strength) training for 12 weeks showed less gain in bone density if they were given high daily doses of vitamins C & E than if they were given a placebo. This is not the first time that  high-dose antioxidant supplements have been shown to reduce benefits from exercise. For details, see the "Concerns and Cautions" section of the Vitamin C Supplements Review >>

CL Answer

Risks of Too Many Vitamins & Supplements

Taking too many vitamin supplements -- or taking too much of a particular supplement -- can have short and long-term adverse effects.

Too Many Vitamins

CL Answer

Can beetroot juice or supplements lower blood pressure or improve exercise performance, and are they safe?

Learn more about beetroot juice and beetroot supplements and if beetroot can really help lower blood pressure.

Beetroot Juice for Lowering Blood Pressure? -- Glass of beetroot juice and blood pressure monitor

Product Review

Ashwagandha Supplements Review

Find the Best Ashwagandha Supplement. Only 56% of Ashwagandha Products Pass Tests.

Ashwagandha supplements reviewed by ConsumerLab.com

Product Review

Vitamin A Supplements Review, Including Beta-Carotene and Cod Liver Oil

Find the Best Vitamin A Supplement. Best Quality Vitamin A Supplements Identified, Including Cod Liver Oil.

Vitamin A Supplements (Including Cod Liver Oil) Reviewed by ConsumerLab.com

Product Review

Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements Review: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids)

Choose the Best Seed Oil Supplements. Find Out Which Flaxseed and Other Seed Oil Supplements Passed Our Tests.

Flaxseed Oil, Evening Primrose Oil, Borage Oil, Hemp Oil and Black Currant Oil Supplements Reviewed by ConsumerLab.com

Product Review

Apple Cider Vinegar Review — Bottled Liquids and Supplements

Find the Best Apple Cider Vinegar. See Which Apple Cider Vinegar Liquids and Supplements Passed Our Tests of Quality.

Apple Cider Vinegar Supplements Reviewed by ConsumerLab.com

News Release

February 25, 2023

Top-rated Vitamin and Supplement Brands and Merchants for 2023 Based on Consumer Satisfaction

White Plains, New York, February 25, 2023 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,600 responses collected in November/December 2022.

Product Review

Cinnamon Supplements and Spices Review

CAUTION: Some Cinnamon Products High in Toxin. See Which Passed or Failed and our Top Picks!

Cinnamon Supplements and Spices Tested by ConsumerLab.com

Product Review

Vitamin K Supplements Review (Including Calcium, Magnesium, Boron, and Vitamin D)

Should You Take Vitamin K? Beware of Products That Don't Deliver.

Product Review

Whole, Ground, Milled, and Cracker Flaxseed Review

High Levels of Cadmium Found in Flaxseed Products — Testing Expanded

CL Answer

Which supplements and foods can help lower or control blood sugar?

Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.

Blood Sugar Control -- blood test and blood sugar chart

CL Answer

Can taking too much vitamin B-12 be dangerous? The label on my B-complex states it contains 50,000% of the Daily Value!

Find out the daily value for vitamin B-12 and the potential side effects of taking too much B-12. ConsumerLab explains why taking too much vitamin B-12 can be harmful.

The danger of taking too much vitamin B-12 -- bottle of vitamin B-12 with pills on the table spelling out 'B-12'

CL Answer

7 Red Flags to Watch Out For When Buying Vitamins & Supplements

When it comes to buying vitamins and supplements, it's buyer beware. ConsumerLab explains seven red flags to look out for on labels when choosing and buying vitamins or supplements, including claims of "FDA Approved" laboratories, what to look for in the ingredient list, and more.

What to Watch Out for When Choosing a Supplement -- Supplement Bottle Label Close-up

Recalls & Warnings

September 28, 2022

FDA Warns Muscle Sports for Joint Health, Immune & Workout Supplement, Vitamin C, Elderberry, and Other Claims

On September 23, 2022, the FDA issued a warning letter to Muscle Sports Products, LLC following inspection of the company’s websites which found statements about company products, including Join Revolution Capsules, IMMUNITY + Powder, Rhino Rampage PUMPED Capsules, Attack Pre-Workout ...

Recalls & Warnings

August 15, 2020

FTC Warns 20 More Companies for Coronavirus Claims

On August 14, 2020, the FTC announced that it sent warning letters to 20 companies for selling products such as vitamin C, hydrochloroquine, omega 3, and melatonin with unsupported claims that they can treat coronavirus (COVID-19).

Clinical Update

1/19/2014

Multivitamin Lowers Cataract Risk

A large, long-term study using a low-dose multivitamin found that it reduced the risk of developing cataract (a clouding of the lens of the eye) by 9% compared to placebo. Interestingly, the reduced risk of cataract was negated when a separate vitamin C supplement was also taken. For details about the study and dosage, as well as our tests and comparison of multivitamins, see the updated Multivitamin and Multimineral Supplements Review.   

Clinical Update

2/19/2019

Kidney Stones Due to Supplement?

An unusual type of kidney stone has been reported in several people who regularly consumed large amounts of a vitamin and amino acid supplement containing a particular form of choline and vitamin C. For details, see the Concerns and Cautions section of the Choline Supplements Review.

Clinical Update

3/25/2020

Surprising Role of Potassium in COVID-19

New research out of China suggests that many patients hospitalized with COVID-19 are low in potassium. For details see the information about Potassium in our answer to the question: What are natural remedies for coronavirus (COVID-19)? Do supplements like zinc, vitamin C, or herbals work?

Clinical Update

9/07/2022

Supplement for Eye Floaters?

Did a supplement containing vitamin C, zinc, and other antioxidant ingredients help reduce eye floaters in a recent study? Find out in our article: Do any supplements help prevent or reduce eye floaters?

Clinical Update

2/25/2022

Zinc & COVID

Can taking zinc and vitamin C after being diagnosed with COVID-19 boost antibody production? Find out what a recent study found in the COVID section of our Zinc Supplements Review.

Also see our article about Supplements for COVID.

Clinical Update

3/19/2024

Probiotic for COVID?

Did a probiotic promoted to support immune defenses against COVID-19 help prevent or treat COVID-19? Find out in our Probiotics Supplements Review, which includes our Top Picks among probiotics.

Also see: Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?

CL Answer

Are there any supplements I should avoid when taking acetaminophen (Tylenol)?

Find out if there are any supplements that should be avoided when taking acetaminophen (Tylenol).

Acetaminophen (Tylenol) Interactions With Supplements -- box of Tylenol

Recalls & Warnings

December 11, 2020

Colloidal Silver Seller Warned for COVID-19 Claims

On December 2, 2020, the FDA issued a warning letter to Heavenly Natural Products for selling various Carbon 60 and colloidal silver products, including AVOCADO C60 ANTI-VIRAL COMBO — VIRUS PREVENTION (made with C60 WITH AVOCADO and Heavenly Silver) with unsupported ...

Recalls & Warnings

December 31, 2020

FDA Warns Seller of Flu Immune

On December 21, 2020, the FDA issued a warning letter to Riverstone LLC for selling the products Flu Immune Drops, L-Lysine, Lysine Extra, and Monolaurin with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

July 17, 2020

Sellers of Immune Boosters, Vitamin C Warned for Coronavirus Claims

The FDA recently issued warning letters to two companies for selling products such as immune boosters, vitamin C, and zinc with unsupported claims that they can treat COVID-19 (use the links below to read the full warning letter):

Recalls & Warnings

May 09, 2020

FDA Warns Sellers of Essential Oils, CBD, Vitamins, and More Promoted to Treat Coronavirus

Between May 7 and May 8, 2020, the FDA issued warning letters to seven companies for selling products such as essential oils, CBD, hand sanitizers, and vitamins with unsupported claims that they can treat coronavirus (COVID-19).

CL Answer

Which supplements, foods or diet and lifestyle changes help relieve acid reflux (heartburn), and which worsen it?

Find out which supplements and foods can help relieve acid reflux, and which can make it worse.

Supplements Making Acid Reflux Worse -- Man with acid reflux pain

CL Answer

7 Tips to Avoid Getting a Pill Stuck in Your Throat

Some pills can be difficult to swallow and can even become lodged in the throat or cause damage to the esophagus. Learn seven practical tips to help avoid getting pills stuck in the throat.

Pill Getting Stuck in Throat

CL Answer

What is Pycnogenol, does it work, and is it the same as other pine bark extracts?

Learn more about Pycnogenol, including evidence from clinical studies on blood clots, osteoarthritis, cognition, vision, tinnitus, and the skin and safety.

Pycnogenol Health Benefits -- woman with leg pain

Clinical Update

1/08/2012

Additional Nutrients For the Brain

An new study found that various nutrients and fats in the blood correlate with better brain functioning and brain volume in the elderly (mean age of 87). Higher levels of B vitamins and vitamins C, D, and E, as well as marine omega-3 fatty acids (EPA and DHA) appeared helpful. On the other hand, higher levels of trans-fats (from hydrogenated oils) had a negative impact. You can learn more about each of these nutrients in our various reports. An abstract of the study is online.

Recalls & Warnings

March 04, 2011

Recall of "Raw" Vitamin C Supplement Containing Soy

The FDA posted a notice dated March 2, 2011 from Garden of Life, LLC regarding that company's voluntary recall of its Raw Vitamin C supplement because it may contain undeclared soy proteins.

CL Answer

If I buy NAC as a loose powder in a large bag, as opposed to in tablet or capsule form, will it spoil? I've heard it can spoil or degrade into a harmful by-product.

Learn more about the different forms of N-Acetyl-Cysteine (NAC), including whether or not powder will spoil faster than tablets.

N-acetyl cysteine (NAC) supplements tested by ConsumerLab.com

Product Review

Nitric Oxide Supplements (Bodybuilding and Athletic Performance) Review Article

Do Nitric Oxide Supplements Really Work? Find Out If Nitric Oxide Supplements Really Build Muscle or Improve Performance.

Nitric Oxide Supplements Review

CL Answer

What are "broad-spectrum micronutrient" supplements, and do they have greater health benefits than multivitamin/multimineral supplements?

Learn about "broad-spectrum micronutrients" and how they compare to multivitamin/multimineral supplements.

Multivitamins on a table with a multivitamin supplement nutrition label in front of the multivitamins

CL Answer

What is graviola? Can it really help fight cancer?

Learn more about graviola, if it can really help fight cancer, and its safety.

Graviola on white background

Product Review

Noni Juice and Supplements Review Article

What Are the Benefits of Noni Juice? Get the Facts About Noni Juice and Supplements.

Recalls & Warnings

May 30, 2017

Seller of Vitamin C, Calcium, Mushroom Supplements and More Warned for Manufacturing Violations

On May 12, 2017 the FDA issued a warning letter to VitaPurity Corporatio.

Recalls & Warnings

June 08, 2021

FDA Warns Seller of "CoronaBox" Containing Vitamin D, Probiotics & More for Unsupported Claims

On May 24, 2021, the FDA issued a warning letter to Everything Health LLC following a review of the company's website by the FDA and Federal Trade Commission (FTC) which found the company promoted its CoronaBox (which contains cordyceps, vitamins, and K2, magnesium, ginger, probiotics ...

Recalls & Warnings

May 08, 2021

FDA Warns Seller of Vitamins B12, C, D, and K

On April 7, 2021, the FDA issued a warning letter to Unived Inc following a review of the company's websites, which found statements made about the company's products Unived brand Colox, CalDveg, B12+D3, and D3+K2-7 to be drug claims.

CL Answer

Do any supplements help with pancreatitis? Do any cause pancreatitis?

Find out if supplements including digestive enzymes, antioxidants, or medium-chain triglycerides are beneficial for chronic pancreatitis, and learn which supplements might worsen symptoms.

Person with pancreatitis holding their abdomen

News Release

February 24, 2023

Probiotics Rise in Popularity as Vitamin C, Melatonin, and Others Dip in Latest ConsumerLab Survey of Supplement Users

White Plains, New York, February 25, 2023 —A recent survey of 8,600 people who regularly use dietary supplements shows that probiotics (+3.04 percentage points), quercetin (+2.3 pts), and vitamin K (+1.

News Release

May 16, 2022

Best Calcium and Bone Health Supplements Revealed by ConsumerLab Tests

  White Plains, New York, May 16, 2022 — Calcium is essential for maintaining bones and plays critical roles in nerve transmission, muscle contraction, and the cardiovascular system.

News Release

April 13, 2022

ConsumerLab Tests Vitamin D Supplements and Cautions About Dose

  White Plains, New York, May 12, 2022 — Getting sufficient vitamin D is essential for healthy bones and has a wide range of other health benefits. It's no wonder that it has been the #1 supplement in popularity year-after-year in ConsumerLab's survey of supplement users.

CL Answer

What is EpiCor? Does it really "boost" the immune system and prevent colds?

EpiCor supplement info, including evidence from clinical studies on immune function and cold/flu prevention, safety, and price.

Woman with Cold Holding Pill Bottle

CL Answer

What is Protandim and does it really work?

What is Protandim and does it really work? Can Protandim reduce oxidative stress? ConsumerLab's answers discusses Protandim's effectiveness, reviews and studies.

Does Protandim Work? -- Bottle of Protandim

Product Review

Pomegranate Juice and Supplements Review Article

What Are the Benefits of Pomegranate Juice and Supplements? Find Out What Pomegranate Can and Cannot Do For Your Health.

Pomegranate Juice Supplements Reviewed by ConsumerLab

News Release

April 02, 2022

ConsumerLab Discovers Less Vitamin K Than Listed in Some Supplements

  White Plains, New York, May 16, 2022 — Vitamin K plays an important role in proper blood clotting and calcium utilization in bones and is a common ingredient in bone health supplements.

CL Answer

Do vitamin patches, such as for B12 or multivitamins, really work? How about those from PatchMD?

Do vitamin B12 Patches like PatchMD really work? Can you absorb vitamin B12 through patches?

Vitamin Patches -- young woman with vitamin patch on arm

News Release

March 11, 2022

Best Magnesium Supplements Identified by ConsumerLab

  White Plains, New York, May 12, 2022 — Nearly half the U.S. population does not get adequate amounts of magnesium and can benefit from increasing magnesium intake from foods or supplementation.

Product Review

Nattokinase Supplements Review

Choose the Best Nattokinase Supplement. CL Tests Reveal Which Nattokinase Suppplements Provide the Best Quality & Value.

Nattokinase Supplements Tested by Consumerlab.com

Recalls & Warnings

November 02, 2020

Silver Cannot Be Promoted to Prevent or Treat COVID-19

On October 30, 2020, the FDA issued a warning letter to Spartan Enterprises Inc. dba Watershed Wellness Center for selling the silver product Dissolve BioActive Silicate with unsupported claims that it can treat coronavirus (COVID-19).

News Release

February 25, 2022

Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction

White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021.

CL Answer

Can castor oil eye drops improve or dissolve cataracts? Is castor oil or tea tree oil helpful for other eye conditions such as blepharitis or dry eye?

Can castor oil eye drops help cataracts or for other conditions such as blepharitis? Find out if castor oil eye drops are safe to use, and if they help for other conditions. ConsumerLab.com's answer explains.

Castor Oil for Cataracts? -- bottle of castor oil and dropper

Product Review

Lycopene Supplements Review

Find the Best Lycopene Supplements. CL Tests Reveal That Not All Lycopene Supplements Contain What They Claim.

Lycopene Supplements Reviewed by ConsumerLab.com

Product Review

PQQ (Pyrroloquinoline Quinone) Supplements Review

Learn What PQQ Does and Which PQQ Supplements are Best

News Release

February 24, 2022

Consumers Returned to Pre-Pandemic Supplement Usage in 2021, ConsumerLab Survey Reveals

White Plains, New York, February 24, 2022 —A survey of 8,049 people who use dietary supplements shows many supplements that declined in use in 2020 began bouncing back in 2021, such as magnesium (+2.4 percentage points), and CoQ10 (+2.7 pts).

CL Answer

Which supplements are best for seasonal allergies?

Find out which supplements are best for allergies and can help reduce seasonal allergy symptoms, including bromelain, curcumin, vitamin D, and CLA.

Supplements for Seasonal Allergies -- Woman Outside Sneezing

Recalls & Warnings

August 08, 2022

Woman Pleads Guilty for Selling and Promoting Products to Treat COVID-19

On July 27, 2022, Diana Daffin, owner of Savvy Holistic Health pleaded guilty to selling products with claims they could treat COVID-19 and promised “Immunity for Humans.” The products were sold under the HAMPL brand name.

Recalls & Warnings

September 21, 2019

Liquid Vitamin C for Men Recalled

On September 16, 2019, Fitoterapia USA Inc. issued a recall of Macho Artificial Passion Fruit Flavored Vitamin C Liquid Supplement, a supplement promoted for male sexual enhancement, because FDA analysis found it to contain tadalafil.

Recalls & Warnings

December 01, 2020

Niagen Cannot Be Promoted to Prevent or Treat COVID-19, Warns FDA

On November 17, 2020, the FDA issued warning letters to the sellers of Niagen and Nadovim, supplements that contain different forms of niacin, for selling products with unsupported claims that they can treat coronavirus (COVID-19).

CL Answer

What is inositol hexaphosphate (IP6) and myo-inositol? Are they helpful in treating cancer or other conditions?

Inositol hexaphosphate (IP6): Find out if IP6 (also known as phytic acid) can prevent or treat cancer. Clinical evidence, dosage, safety and how IP6 differs from myo-inositol. Consumerlab.com's answer explains.

Wooden spoon filled with white inositol capsules

CL Answer

Which supplements are important after bariatric surgery (i.e., weight loss or stomach-reducing surgery)? Are there any I should avoid?

Find out which supplements may help after weight loss or stomach reducing surgery, including iron and calcium, and which should be avoided.

Bypass Surgery Sign

CL Answer

Do supplements help with Parkinson’s disease treatment or prevention?

Learn what has been shown with vitamins D and E, niacin, CoQ10, melatonin, creatine, SAMe, NAC, valerian, CoQ10, and CBD, as well as with coffee and the Mediterranean and MIND diets for treating and/or preventing Parkinson's disease.

Elderly man with parkinsons holding trembling hand while eating

CL Answer

Supplements for multiple sclerosis (MS): Do any supplements reduce symptoms or relapse?

Find out if vitamins or supplements such as ginkgo, fish oil, biotin, vitamins A, C, E, D, and B12, or selenium reduce symptoms or relapse in people with multiple sclerosis (MS).

MS 3

Product Review

Ginkgo (Ginkgo Biloba) Supplements Review

Choose the Best Ginkgo Biloba Supplement. Finding Real Ginkgo Isn't Easy — 60% Fail ConsumerLab's Tests of Quality.

Ginkgo Biloba Supplements Tested by ConsumerLab.com

Product Review

Rhodiola Rosea Supplements Review

Do Rhodiola Supplements Help With Depression and Anxiety? Find Out and See Which Rhodiola Supplements Provide the Best Quality & Value.

Rhodiola Supplements Reviewed by ConsumerLab.com

Product Review

L-Lysine Supplements Review

Read L-Lysine Labels Carefully. Some Can Fool You.

Product Review

Saffron Supplements Review

See How Saffron Supplements Compare and What They Do

News Release

February 10, 2022

Best Iron Supplements for Different Needs? ConsumerLab Selects Its Top Picks

White Plains, New York, February 10, 2022 — With so many different forms and doses of iron available from supplements, it can be difficult for consumers to know which best suits their needs.

CL Answer

Which supplements help with arthritis?

Learn more about supplements for joint health, including products such as Wobenzym and Zyflamend and ingredients such as collagen, curcumin, glucosamine and chondroitin, hyaluronic acid, magnesium, omega-3 fatty acids, palmitoylethanolamide (PEA), SAMe, and others.

Supplements for Osteoarthritis and Rheumatoid Arthritis -- Women With Arthritic Hands

Recalls & Warnings

January 19, 2018

Flawless Beauty Shut Down, Company's Kits and Products Recalled

On January 19, 2018, Flawless Beauty, LLC issued a recall for all lots of nineteen products sold individually or together as part of its "whitening kits."  

Product Review

Alpha Lipoic Acid Supplements Review

Choose the Best Alpha-Lipoic Acid Supplement — See the Amounts of Active "R-Isomer" We Found

Product Review

Shelled Walnuts (Halves & Pieces)

See Our Top Picks for Walnuts

Walnuts Review 2023

Product Review

NAD Booster Supplements Review (NAD+/NADH, Nicotinamide Riboside, and NMN)

How Important Is Boosting NAD+ Levels? Find Out and Learn How Booster Supplements Compare.

NAD Boosters (NAD+/NADH, Nicotinamide Ribose, and NMN)

Product Review

Menopause Supplements Review (Soy and Red Clover Isoflavones, Black Cohosh) and Progesterone Creams

Choose the Best Menopause Supplement. Find Out Now Which Soy Isoflavone, Red Clover, Black Cohosh, and Progesterone Products Have the Active Compounds You Want!

Menopause Supplements Tested by ConsumerLab.com -- Soy and Red Clover Isoflavones, Black Cohosh, and Progesterone Cream

CL Answer

Can D-mannose help prevent urinary tract infections?

Learn more about D-mannose and its impact on urinary tract infections (UTIs), including evidence from clinical studies.

Woman with UTI holding her hands over her lower abdomen

CL Answer

How much calcium do you need each day, what forms are best, and how much is too much?

Learn about the recommended daily intake of calcium from food & supplements and why taking too much can be harmful. Also, learn about the forms of calcium that are available and which are best.

None

Recalls & Warnings

April 04, 2017

Seller of B Vitamins, Vitamin C, Potassium & More Warned for Manufacturing Violations

On March 24, 2017 the FDA issued a warning letter to The Sanapac Company, Inc.

Recalls & Warnings

February 24, 2023

Bountiful Charged with “Review Hijacking,” False Advertising of Nature’s Bounty Supplements on Amazon

On February 16, 2023, the Federal Trade Commission (FTC) charged The Bountiful Company (formerly NBTY), whose brands include Nature’s Bounty and Sundown, with deceptively using Amazon reviews and badges (such as “#1 Best Seller” and “Amazon’s Choice”) from its ...

Recalls & Warnings

December 15, 2022

Beware of Supplements, Homeopathic Products Promoted to Treat Flu, Says FDA

On December 13, 2022, the FDA warned consumers to beware of supplements and homeopathic products, as well as nasal sprays, sanitizers and other products that promise to prevent or treat the flu.

CL Answer

Is it possible to get too much vitamin D?

Too much vitamin D can lead to adverse effects, including hypercalcemia (excess calcium in the blood).

Too Much Vitamin D? -- bottle of vitamin D and vitamin D tablets in the shape of the letter D

News Release

July 23, 2021

Best Astaxanthin Supplements Identified In Testing by ConsumerLab

White Plains, New York, July 23, 2021 —Astaxanthin supplements are promoted for a wide range of uses, such as increasing physical endurance, reducing inflammation and wrinkles, protecting from sunburn, and lowering triglyceride levels.

News Release

February 26, 2021

COVID Changed Supplement Popularity in 2020, ConsumerLab Survey Reveals

White Plains, New York, February 26, 2021 — A survey of 9,647 people who use dietary supplements shows that the supplements which experienced the greatest growth in popularity in 2020 were those being promoted to prevent or treat infection with SARS-CoV-2, the coronavirus that causes COVID-19.

Recalls & Warnings

October 19, 2020

Seller of Thrive "Anti-Viral" Supplements Settles with FTC for Unproven Coronavirus and Cancer Claims

On October 19, 2020, the Federal Trade Commission (FTC) approved an administrative consent order to settle charges that marketer Marc Ching was making unsubstantiated claims that the supplement Thrive can treat, prevent, or reduce the risk of coronavirus (COVID-19).

Recalls & Warnings

September 11, 2020

Seller of "COVID PACK" Warned for Coronavirus Claims

On September 9, 2020, the FDA issued a warning letter to Pharmacy Plus, Inc. dba Vital Care Compounder for selling COVID PACK and COVID 'POSITIVE' PACK products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

February 17, 2021

FDA Warns Dr. Paul's Lab for COVID-19 Claims

On February 16, 2021, the FDA issued a warning letter to Dr. Paul's Lab following a review of the company's website by the FDA and Federal Trade Commission (FTC) for selling COVID-Aid Tincture with unsupported claims that it can treat coronavirus (COVID-19).

Recalls & Warnings

February 16, 2021

Seller of BioCBD+ Products Warned for COVID-19 and Drug Claims

On February 11, 2021, the FDA issued a warning letter to Evolved Ayurvedic Discoveries, Inc.

Recalls & Warnings

January 25, 2021

Washington Resident Arrested for Selling Illegal COVID-19 Vaccine

On January 21, 2021, 55-year-old Washington resident Johnny T. Stine was arrested for selling and administering illegal, home-made COVID-19 vaccines to Americans.

Recalls & Warnings

January 21, 2021

Federal Court Bars Fusion Health From Promoting Vitamin D for COVID-19

On January 8, 2021, the United States Department of Justice announced a permanent injunction has been entered, barring dietary supplement marketer Matthew Ryncarz and his companies Fusion Health and Vitality LLC dba Pharm Origins and Fusion Ionz LLC dba Pharm Origins from making claims that their ...

Recalls & Warnings

January 20, 2021

FDA Warns Seller of Vitamin D, Curcumin and CoQ10 Promoted for Treating COVID-19

On December 28, 2020, the FDA issued a warning letter to Smarter Nutrition, Inc. following a review of the company's website, which found statements made about the company's products Smarter Curcumin, Smarter Ubiquinol, and Smarter Vitamin D3 to be drug claims.

Recalls & Warnings

March 05, 2021

Seller of Earth Tea Warned for COVID-19 Claims

On February 18, 2021, the FDA issued a warning letter to B4B Corp. following a review of the company's website by the FDA and Federal Trade Commission (FTC) which found the company promoted Earth Tea Extra Strength with unsupported claims that it can treat coronavirus (COVID-19).

Recalls & Warnings

July 10, 2020

Seller of Thrive "Anti-Viral" Supplement Barred from Making Unproven Coronavirus and Cancer Claims

On July 10, 2020, the Federal Trade Commission (FTC) barred marketer Marc Ching from making unsubstantiated claims that the supplement Thrive can treat, prevent, or reduce the risk of coronavirus (COVID-19). Thrive consists mainly of vitamin C and herbal extracts.

Recalls & Warnings

July 07, 2020

Sellers of Essential Oils, Hand Sanitizers and More Warned for Coronavirus Claims

The FDA recently issued warning letters to five companies for selling products such as essential oils, homeopathic products, and Chinese herbal products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

June 25, 2020

"Anti-Viral" Supplement Recalled for Unsupported Coronavirus Claims

On June 23, 2020, Golden Nutrition Inc. issued a recall of four lots of Anti-Viral Immune Enhancement Capsules because the label makes unsupported health claims to "help fight corona virus and influenza.

Recalls & Warnings

August 25, 2020

Seller of CBD and NAC Warned for Coronavirus Claims

On August 19, 2020, the FDA issued a warning letter to Living Senior, LLC for selling CBD and NAC products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

August 18, 2020

Colloidal Silver Seller Warned for Coronavirus Claims

On August 14, 2020, the FDA issued a warning letter to SilveryGuy for selling colloidal silver products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

August 18, 2020

Seller of Immune Shot Criminally Charged With Making Coronavirus Claims

On August 10, 2020, prosecutors in Georgia charged Matthew Ryncarz and his company Fusion Health and Vitality, LLC d/b/a/ Pharm Origins with selling the misbranded product Immune Shot.

Recalls & Warnings

June 23, 2020

Seller of CBD Tinctures and "Immune Boost Packs" Warned for Coronavirus Claims

On June 18, 2020, the FDA issued a warning letter to Project 1600 Inc. for selling CBD products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

June 23, 2020

North Isle Wellness Center Warned for Coronavirus Claims

On June 19, 2020, the FDA issued a warning letter to North Isle Wellness Center for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

June 20, 2020

FDA Warns Companies Selling Unapproved COVID-19 Tests

On June 17, the FDA issued warning letters to three companies for marketing unapproved, adulterated or misbranded antibody tests for coronavirus (COVID-19).

Recalls & Warnings

May 28, 2020

FDA Warns Sellers of CBD, Colloidal Silver, Essential Oils, and More Promoted to Treat Coronavirus

On May 26, 2020, the FDA issued warning letters to four companies for selling products such as CBD, essential oils, colloidal silver, and vitamins with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 21, 2020

U.S. Attorney's Office Bars Chiropractor from Selling Fake Coronavirus Cures

On April 17, 2020, the United States Attorney's Office for the Northern District of Texas announced that it has obtained a temporary restraining order preventing a chiropractor from promoting fake treatments for coronavirus (COVID-19). Dr. Ray L.

Recalls & Warnings

December 01, 2022

FTC Takes Action Against Company Promoting “COVID Resist” Supplement to Treat COVID-19

On November 22, 2022, the FTC filed a complaint in a U.S. district court against California-based company Precision Patient Outcomes, Inc. for promoting its COVID Resist and VIRUS Resist supplements to prevent and treat COVID-19.

News Release

February 25, 2021

Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020.

CL Answer

I've heard that having low B-12 or B-6 can cause depression. Is that true?

Find out if vitamin B12 or B6 deficiency can cause depression and how they can affect antidepressants.

Sad Woman on Couch

CL Answer

I'm trying to pick a good multivitamin for my children and husband, and for myself. Any suggestions based on your research?

Find out how to pick the best multivitamin for you and your family, based on diet, price, and effectiveness.

Recalls & Warnings

April 20, 2021

Chiropractor Who Claimed Vitamin D and Zinc Work Better Than COVID Vaccines Charged by FTC

On April 15, 2021, the FTC charged St.

CL Answer

Do Sugar Bear Hair Vitamins make hair shine, nails stronger, and help both to grow? They taste good but are super expensive.

Info on Sugar Bear Hair vitamins. Do they make hair shine, nails stronger and help hair and nails grow? ConsumerLab.com's answer explains.

Do Sugar Bear Vitamins Work? -- bottle of Sugar Bear vitamins

News Release

February 12, 2021

Don't Be Surprised by New Labels on Many Vitamins

White Plains, New York, February 12, 2021 — It took almost four years, but more accurate labels on vitamin and mineral supplements are finally here and consumers should not be surprised to see changes, says Tod Cooperman, M.D., president and founder of ConsumerLab.

News Release

November 24, 2020

Best Zinc for Colds, Immunity, and More. ConsumerLab Selects Top Picks Among Zinc Liquids, Pills and Lozenges

White Plains, New York, November 24, 2020 — The right zinc can shorten a cold and many people are deficient in zinc. So which zinc supplements and lozenges provide the right dose and form of zinc, the best quality, and at a reasonable price?

CL Answer

I take fluoxetine (Prozac), a SSRI drug to treat depression. Are there supplements I should avoid, or be taking, due to this drug?

Learn about Prozac (fluoxetine) drug interactions along with other supplements and SSRIs.

Woman Taking Pill with Glass of Water

News Release

June 06, 2020

Best Vitamin C Supplements Revealed by ConsumerLab

White Plains, New York, June 6, 2020 — Due to its role in maintaining immune system health, vitamin C has been promoted to help prevent and treat COVID-19, as well as other viral infections such as colds.

News Release

April 28, 2020

Best and Worst Multivitamins Revealed by ConsumerLab -- Problems Found With 44% of Multis Tested

White Plains, New York, April 28, 2020 — Multivitamin/multimineral supplements are among the top five most popular supplements, but with so many different formulas on the market, it can be difficult to choose the right one.

CL Answer

Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?

Learn which supplements can ease tinnitus, including melatonin and pine bark extract. Understand which may actually cause tinnitus.

Word blocks spelling out “tinnitus”

News Release

February 29, 2020

Collagen and Magnesium Rise in Popularity, as Fish Oil and Curcumin Dip in Latest ConsumerLab Survey of Supplement Users

White Plains, New York, February 29, 2020 — A recent survey of 9,782 people who use dietary supplements shows that collagen (+ 4.1 percentage points), magnesium (+ 2.3 pts) and CBD (+ 2.

Recalls & Warnings

October 29, 2008

Two Vitamin C Supplements Recalled in Canada for Vitamin A Risk

On October 28, 2008, Health Canada warned Canadians, expecially expectant mothers, not to use two vitamin C products sold under the brand names New Roots Herbal Vitamin C8 and Vitazan Professional Vitamin C Advanced Ascorbate.

Recalls & Warnings

February 10, 2018

Warning to D-Limonene, Vitamin C Seller

On January 31, 2018 the FDA issued a warning letter to Long Life Unlimited, LLC following a review of the company's website which found promotional statements and testimonials made about products including Balance 600, D-Limonene, Rapha Remedy, Rapha Remedy w/ p73 Wild Oregano, Vitamin C, ...

Recalls & Warnings

March 18, 2024

Amazon Customers Who Purchased Nature’s Bounty and Sundown Supplements to Receive Refunds Following “Review Hijacking” Charges

On March 14, 2024, the Federal Trade Commission (FTC) announced it is sending over $527,000 in refunds to consumers who purchased certain Nature’s Bounty and Sundown vitamins and supplements on Amazon, after the parent company Bountiful was charged with deceptive use of reviews to promote the ...

Recalls & Warnings

May 04, 2023

FDA Warns MedoLife for Promoting Homeopathic Products to Treat COVID-19, Cancer

On April 19, 2023, the FDA issued a warning letter to Medolife Rx D/B/A MedoLife Corp., AELIA Inc. and Queanta Inc.

CL Answer

Do any supplements reduce the side effects of chemotherapy? Should any be avoided?

Find out if there are any supplements that can help with the side effects of chemotherapy, such as nausea, vomiting, diarrhea, nerve damage and others. ConsumerLab.com's answer explains.

Supplements & Chemotherapy Side Effects -- chemotherapy medicine and capsules

Recalls & Warnings

November 21, 2022

Healthy Sense and People’s Choice Multis Recalled

On November 17, 2022, Mason Vitamins Inc.

CL Answer

Is Modified Citrus Pectin (MCP) helpful for prostate or breast cancer?

Modified Citrus Pectin (MCP) information including its effects on cancer, such as prostate cancer, and more.

Modified Citrus Pectin for Cancer? -- close up of an orange and orange peel

Recalls & Warnings

November 14, 2012

Maker of Vitamin C, Aloe and Sexual Enhancement Supplements Warned for Drug Claims and Misbranding

On October 22, 2012, the FDA issued a warning letter to Health Breakthroughs International, LLC after a review of the company's product labels and website found the dietary supplements Amazing C, MPS-Gold 100 and Power Herbal Formula to be promoted as drugs.

News Release

February 25, 2020

Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019.

News Release

October 22, 2019

Best Vision Supplements Identified by ConsumerLab

White Plains, New York, October 22, 2019 — Supplements containing lutein and other ingredients can slow the progression of age-related macular degeneration, the leading cause of vision loss and blindness in adults over 60 years of age.

Recalls & Warnings

January 15, 2024

Suprex Carb & Sugar Block Recalled

On December 7, 2023, Vita 360, LLC issued a recall of one lot of SUPREX Plant Based Nutrition Carb & Sugar Block after FDA analysis found it to contain only 16 mcg of chromium per serving and not 100 mcg of chromium per serving, as listed on the label.

News Release

February 25, 2019

Top-rated Vitamin and Supplement Brands and Merchants for 2019 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2019 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,931 responses collected in late November and early December 2018.

Recalls & Warnings

April 13, 2023

Bountiful to Pay $600,000 to Settle Charges of Amazon “Review Hijacking”

On April 10, 2023, the Federal Trade Commission (FTC) announced it has approved a final consent order against The Bountiful Company (formerly NBTY), whose brands include Nature’s Bounty and Sundown, after the agency charged Bountiful with using deceptive practices to sell its products on ...

Recalls & Warnings

March 30, 2023

Seller of Tollovid Supplements Warned for COVID-19 Claims

On November 7, 2022, the FDA issued a warning letter to Todos Medical Ltd, aka Todos Medical USA Inc, following a review of the company’s websites, social media, and Amazon storefronts, which found statements about the company’s Tollovid 3CL Protease Inhibitor Delayed Release ...

Recalls & Warnings

March 09, 2023

"Dr. Rima Recommends" Nano Silver Recalled

On March 7, 2023, Natural Solutions Foundation issued a recall of Dr. Rima Recommends Nano Silver 10ppm Dietary Supplement, which was promoted to prevent and/or treat COVID-19.

Recalls & Warnings

November 28, 2022

Seller of Joint Health, Collagen Protein and More Warned for Drug Claims

On November 14, 2022, the FDA issued a warning letter to The Truth Company, LLC (parent company of Kinobody, LLC and UMZU, LLC) following inspection of the company’s websites which found statements about its Betaine, Immune, Redwood, Sensolin, Thyrite, zuRelief, Kino Aminos, Kino Collagen ...

Recalls & Warnings

November 03, 2022

Seller of CBD Warned for COVID-19 Claims

On November 1, 2022, the FDA issued a warning letter to Alternative Health Distribution LLC (d/b/a CannaAid) following a review of the company’s website, which found statements about the company’s cannabidiol (CBD) products to be drug claims.

Recalls & Warnings

January 10, 2023

Seller of CBD Warned for COVID-19 Claims

On January 5, 2023, the FDA issued a warning to PharmaCanna after review of the company’s website and social media, which found statements about the company’s cannabidiol (CBD) product, CBDefense 2000, to be drug claims because they promoted the products to prevent or treat ...

Recalls & Warnings

January 12, 2023

FDA Warns Two Sellers Promoting CBD to Treat COVID-19

On January 10, 2023, the FDA issued warning letters to two companies following a review that found statements made on the companies’ websites to be drug claims because they promoted the cannabidiol (CBD) products to prevent or treat COVID-19.

Recalls & Warnings

February 02, 2023

DoTerra Sellers Ordered to Pay $15,000 for Deceptive COVID-19 Claims

On January 30, 2023, the website truthinadvertising.org reported that the U.S.

Recalls & Warnings

August 08, 2022

Seller of CBD Warned for COVID-19 Claims

On August 4, 2022, the FDA sent a warning letter to FluxxLab LLC following a review of the company’s website and social media which found statements about the company’s Covid-19 Immune Support Tincture and CBDA+CBD Oil Tincture products to be drug claims because they ...

News Release

February 24, 2019

CBD and Collagen Rise in Popularity, as Probiotics and Coconut Oil Dip in Latest ConsumerLab Survey of Supplement Users

White Plains, New York, February 24, 2019 — A recent survey of 10,931 people who use dietary supplements shows that CBD oil (+6.3 percentage points), collagen (+3.6 pts), and bone broth (+2.

News Release

February 25, 2018

Top-rated Vitamin and Supplement Brands and Merchants for 2018 Based on Consumer Satisfaction

White Plains, New York, February 25, 2018 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,446 responses collected in late November and early December 2017.

News Release

February 24, 2018

Magnesium, Curcumin, and Apple Cider Vinegar Rise in Popularity, While Probiotics Dip and Calcium Continues to Decline in Latest ConsumerLab.com Survey of Supplement Users

White Plains, New York, February 24, 2018 — A recent survey of 11,446 people who use dietary supplements shows that magnesium and curcumin and turmeric have leapt into the top 5 most popular dietary supplements, just behind vitamin D, fish oil and CoQ10.

Recalls & Warnings

September 01, 2022

FDA Warns Elderberry Fair & Co for Promoting Elderberry Supplements and Apple Cider to Treat Colds & Flu

On August 15, 2022, the FDA issued a warning letter to The Elderberry Fairy & Co., LLC after review of the company’s website found statements about the company’s Elderberry Syrup with Honey, Elderberry Syrup with Agave, and Organic Fire Cider to be drug claims.

Recalls & Warnings

June 08, 2022

Allergy Bee Nasal Swabs Recalled Due to Potential Contamination With Yeast, Mold & Bacteria

On June 7, 2022, Buzzagogo, Inc. issued a nationwide recall of one lot of Allergy Bee Gone for Kids Nasal Swab Remedy after FDA testing revealed elevated levels of yeast and mold. The agency also warned the recalled swabs may contain the bacteria Bacillus cereus.

Recalls & Warnings

December 29, 2022

EarthLab, Inc. Warned for Promoting Curcumin, Elderberry to Treat Pain & Flu

On November 10, 2022, the FDA issued a warning letter to EarthLab, Inc., dba Wise Woman Herbals following inspection of the company’s website which found statements about the company’s products to be drug claims because they suggest the products can prevent or treat disease.

Recalls & Warnings

November 28, 2022

Seller of Elderberry, Tea Warned for Claims of Treating Cold, Flu, Cancer

On October 18, 2022, the FDA issued a warning letter to Rosebud’s Ranch and Garden, LLC after inspection of the company’s website and social media found statements about the company’s Domestic Divas – Colds and Flu (Tea), Domestic Divas - No Pain No Gain Tea, Green ...

Recalls & Warnings

January 26, 2023

Allergy Bee Nasal Swabs Contaminated With Illness-Causing Bacteria

On January 18, 2023, the FDA issued a warning letter to Buzzagogo, LLC, after the company’s Allergy Bee Gone for Kids nasal swab products were found to be contaminated with bacteria that have the potential to cause life-threatening illness.

News Release

October 19, 2017

ConsumerLab.com Reveals Best Zinc Lozenges and Supplements for Shortening Colds and Correcting Deficiency

White Plains, New York, October 19, 2017 — In the U.S., mild zinc deficiency is fairly common. Zinc supplements can help to correct a deficiency, slow the progression of age-related macular degeneration, and have other benefits. Taken as a lozenge, zinc can shorten the duration of a cold.

Recalls & Warnings

August 02, 2013

Vitamin B, Vitamin C and Multimineral Supplements Recalled Due To Anabolic Steroid Risk

On July 31, 2013, Purity First Health Products, Inc.

CL Answer

What is lactoferrin and will it really strengthen my immune system?

Info about lactoferrin supplements, clinical evidence for strengthening the immune system, preventing or treating colds, gut health and treating H.

What is Lactoferrin? -- lactoferrin capsules and bottle

CL Answer

Can heat and humidity destroy whey protein and other sports nutrition supplements (e.g., creatine, BCAAs, digestive enzymes) during shipping or while storing at home?

Find out if heat and humidity can degrade creatine, BCAAs, digestive enzymes, and other muscle enhancing supplements.

How Heat Effects Whey Protein and Creatine -- Scoop of Protein Powder

CL Answer

When is the best time to take probiotics to prevent diarrhea from antibiotics - before, during, or after the course of antibiotic treatment?

When is the best time to take probiotics to reduce the risk of diarrhea from antibiotics?

Best time to take probiotics

News Release

April 04, 2017

ConsumerLab.com Reveals Best and Worst Turmeric and Curcumin Supplements & Spices -- 31% Fail ConsumerLab.com Tests of Quality

White Plains, New York, April 4, 2017 — Turmeric and its key compound, curcumin, may be help reduce symptoms of inflammation in rheumatoid arthritis and osteoarthritis and may be helpful in treating depression, diabetes, and indigestion.

News Release

March 15, 2017

ConsumerLab.com Reveals Best and Worst Vitamin C Supplements -- 20% Fail ConsumerLab.com Tests of Quality

White Plains, New York, March 15, 2017 — Many people take large doses of vitamin C believing it will improve their health, prevent colds or reduce the risk of disease — but will it really? And when choosing a vitamin C supplement, can consumers be sure it contains what it claims? To ...

Recalls & Warnings

September 01, 2020

Custom Nutraceuticals, LLC Warned for Manufacturing Violations

On August 6, 2020, the FDA issued a warning letter to Custom Nutraceuticals, LLC, following a facility inspection which found the company's products, including Thermal Revolution Black, Anabolic Blackout Raspberry Lemonade, Militia Re-COMP, and Rhino Rampage Wildberry to be ...

Recalls & Warnings

August 14, 2020

The Green Herb and New Genesis Health Warned for Manufacturing Violations

On July 31, 2019, the FDA issued a warning letter to Davis Ventures, Inc.

Recalls & Warnings

June 05, 2020

LifeHealth Science Warned for Manufacturing Violations

On May 15, 2020, the FDA issued a warning letter to LifeHealth Science, which found the company's ORËÁ product to be adulterated because it was prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary supplements.

Recalls & Warnings

February 06, 2023

FDA Warns Companies Promoting Products to Treat Monkeypox, COVID-19, & Other Viruses

On January 30, 2023, the FDA issued a warning letter to four companies following review of the company websites, which found statements about company products to be drug claims because they were promoted to mitigate, prevent, treat, diagnose, or cure viruses such as monkeypox.

Recalls & Warnings

February 01, 2022

Complaint Submitted to FTC for doTerra Essential Oil COVID Claims

On January 28, 2022, the website truthinadvertising.org submitted a complaint to the Federal Trade Commission (FTC) against doTerra International, LLC. following a series of Zoom calls from the company titled "Protocols for the Current Climate.

Recalls & Warnings

December 22, 2021

Unauthorized Rapid Antigen Test Gets FDA Warning

On December 1, 2021, the FDA issued a warning letter for DermaCare Biosciences, LTD.

Recalls & Warnings

February 24, 2022

Seller of Essential Oils Warned for COVID-19 Claims

On February 22, 2022, the FDA issued a warning letter to My Natural Treatment following a review of the company’s website and Facebook page, which found statements about the company’s thyme, black seed, eucalyptus, rosemary, and peppermint oil products to be drug claims.

News Release

February 25, 2017

Top-rated Vitamin and Supplement Brands and Merchants for 2017 Based on Consumer Satisfaction

White Plains, New York, February 25, 2017 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,505 responses collected in late November and early December 2016.

News Release

February 24, 2017

Vitamin D Supplements Maintain Top Spot in Popularity, as Probiotics Surpass Multivitamins to #4 Behind Fish Oil and CoQ10 in Latest ConsumerLab.com Survey

White Plains, New York, February 24, 2017 — A recent survey of over 9,505 people who use dietary supplements shows the most popular dietary supplement to be vitamin D, followed by fish oil, CoQ10, probiotics, and multivitamins.

News Release

February 23, 2017

ConsumerLab.com Reveals Best and Worst B Vitamin Supplements and Why Current Labels Often Mislead

White Plains, New York, February 24, 2017 — B vitamins and complexes are popular supplements, but labels often mislead, says a new report from ConsumerLab.com which tested, reviewed, and compared 49 supplements from the U.S.

Recalls & Warnings

January 24, 2013

Food for Health Warned for Manufacturing Violations and Drug Claims on Supplements

On October 5, 2012, the FDA issued a warning letter to Food for Health International, LLC following a facility inspection which found the company's products, including Activz brand Vitamin D, Potassium Iodine, Organic Vitamin C, Whole 9 (a fruit and vegetable meal replacement shake) Control and VMA ...

Recalls & Warnings

July 11, 2014

Maker of Cough and Sleep "Remedies" Warned for Drug Claims

On June 27, 2014, the FDA issued a warning letter to Zarbee's, Inc.

Recalls & Warnings

September 26, 2012

Maker of Eye Health Supplements Warned for Drug Claims

On September 18, 2012, the FDA issued a warning letter to EyeScience Labs, L.L.C. because statements made about the company's Macular Health Formula, Dry Eye Formula and Diabetic Vision Formula supplements were found to constitute drug claims.

Recalls & Warnings

July 03, 2012

Standard Process Recalls Three Supplements Due to Possible Salmonella Contamination

On June 29, 2012, Standard Process issued a voluntary recall of the company's Cataplex ACP, Cataplex C and Pancreatrophin PMG, after a routine FDA inspection uncovered potential Salmonella contamination in an ingredient found in these three products.

Recalls & Warnings

December 29, 2021

Natural Solutions Foundation Banned From Selling "Nano Silver" as COVID Treatment

On December 28, 2021, the United States Department of Justice announced that Natural Solutions Foundation has agreed to stop selling its nano silver products, in order to settle a suit brought against the company by the FDA for claiming the product could that the company claimed could prevent, ...

Recalls & Warnings

May 08, 2021

Seller of Immune Bio Green Cell Warned by FDA

On March 30, 2021, the FDA issued a warning letter to Immune & Genetics Protocols, LLC following a review of the company's websites, which found statements made about the company's product Immune Bio Green Cell to be drug claims.

Recalls & Warnings

July 10, 2021

FDA Warns Seller of Omega XL

On June 31, 2021 the FDA issued a warning letter to Great Healthworks, Inc. following a review of the company's website, which found statements made about Omega XL and ProbioticXL supplements to be drug claims.

Recalls & Warnings

February 09, 2022

FDA Warns Seller of Colloidal Silver Eye Drops, Copper Products & More

On February 1, 2022, the FDA issued a warning letter to New Earth Healing Essentials, LLC d/b/a 5D Full Disclosure following a review of the company’s website, which found statements made about some of the company's products, including Plasma Colloidal Silver Eyedrops, Gaia’s ...

News Release

July 29, 2016

ConsumerLab.com Discovers Problems with Most Multivitamins for Dogs and Cats

White Plains, New York, August 2, 2016 — After discovering in January that none of the three pet multivitamins it had purchased and tested contained all of what was listed on the labels, ConsumerLab.

News Release

July 27, 2016

ConsumerLab.com Helps Consumers Make Sense of the FDA's Updated Daily Values (DV) for Vitamins and Minerals

White Plains, New York, July 27, 2016 — Daily Values (DV) for certain vitamins and minerals have been changed by the FDA, as part of the agency's revised rules for nutrient and supplement facts labeling. The changes went into effect on July 26, 2016.

News Release

March 01, 2016

Does Echinacea Really Help With Colds and Which Brands Are Best?

White Plains, New York, March 1, 2016 — Echinacea supplements are a popular choice for preventing colds and treating cold symptoms, but do they really work? And, with so many different types of Echinacea marketed, how do you know which one to choose? To answer these questions, ConsumerLab.

News Release

February 25, 2016

Top-rated Vitamin and Supplement Brands and Merchants for 2016 Based on Consumer Satisfaction

Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,534 responses collected in November, 2015. Respondents gave ratings for 963 brands and 399 merchants.

News Release

February 24, 2016

Vitamin D Supplements Jump to Top Spot in Popularity, Surpassing Fish Oil, as Probiotics Rise to #5 Spot Behind CoQ10 and Multivitamins in ConsumerLab.com Survey

White Plains, New York, February 25, 2016 — A recent survey of over 11,000 people who use dietary supplements shows the most popular dietary supplement to be vitamin D, followed by fish oil, CoQ10, multivitamins, and probiotics.

Recalls & Warnings

July 22, 2022

FDA Warns Seller of Vision, Calcium & Magnesium Supplements and More

On June 14, 2022, the FDA issued a warning letter to New Sun Inc. following inspection of the company’s website which found statements about the company’s products to be drug claims.

News Release

January 12, 2016

Problems Found with 32% of Multivitamin/Multimineral Supplements -- ConsumerLab.com Identifies Good Choices for Men, Women, and Children

White Plains, New York, January 12, 2016 — You can't always judge a supplement by its label -- or by its price, according to a new report from ConsumerLab.com, which recently tested dozens of multivitamin/multimineral supplements.

News Release

February 28, 2015

Use of Magnesium and Probiotics Rise, Multivitamins and Weight Loss Supplements Fall, According to ConsumerLab.com Survey

White Plains, New York, February 28, 2015 — A recent survey of over 10,000 people who use dietary supplements shows the most popular dietary supplement to be fish oil, followed by multivitamins, CoQ10, vitamin D, B vitamins, magnesium, calcium, probiotics, and vitamin C.

News Release

February 25, 2015

Top-rated Vitamin and Supplement Brands and Merchants for 2015 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,329 responses collected in November, 2014. Respondents gave ratings for 1,709 brands and 891 merchants.

Recalls & Warnings

October 11, 2023

Family Sentenced to Over 12 Years in Prison for Selling Dangerous “Bleach” Miracle Mineral Solution as “COVID Cure”

Four Florida men who distributed the toxic bleach solution Miracle Mineral Solution (MMS) as a cure for COVID-19 and other serious medical conditions have been sentenced to 5 to 12 years in prison for conspiring to defraud the United States.

Recalls & Warnings

March 15, 2013

Maker of Liquid Supplements Warned For Manufacturing Violations and Drug Claims

On January 31, 2013, the FDA issued a warning letter to Liquid Health, Inc.

News Release

July 07, 2014

Which Weight Loss Supplements Are Best? ConsumerLab.com Reviews the Evidence and Tests the Quality of Popular Products

White Plains, New York, July 7, 2014 — Dozens of supplement ingredients have been touted for weight loss, but which have the strongest evidence showing they work and, among those, which products are highest in quality? To answer these questions, ConsumerLab.

News Release

February 13, 2014

Calcium, Vitamin C, and Fish Oil Supplements Drop in Use, Probiotics Rise According to ConsumerLab.com Survey

White Plains, New York, February 13, 2014 — A recent survey of over 10,000 people who use dietary supplements shows that the use of calcium, vitamin C and fish oil supplements fell during 2013 while the use of probiotics increased.

News Release

February 12, 2014

Top-rated Vitamin and Supplement Brands and Merchants for 2014 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,326 responses collected in November, 2013. Respondents gave ratings for 1,639 brands and 788 merchants.

News Release

January 29, 2014

You May Be Getting More Vitamin C Than You Think from Some Supplements, Cautions ConsumerLab.com -- 27% of Vitamin C Supplements Don't Meet Label Claims in Recent Tests --

White Plains, New York, January 29, 2014 — It's cold and flu season, which means many people are reaching for vitamin C, as it may modestly reduce cold symptoms (although it won't prevent a cold).

Recalls & Warnings

March 13, 2020

State of Missouri Sues Jim Bakker Show for Selling False Coronavirus Cure

On March 12, 2020, the Missouri Attourney General announced that it sued the Jim Bakker Show for selling a fake coronavirus (COVID-19) cure called Silver Solution.

News Release

February 01, 2013

Top-rated Vitamin and Supplement Brands and Merchants for 2013 Based on Consumer Satisfaction

Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,862 responses collected in November, 2012. Respondents gave ratings for 1,438 brands and 851 merchants.

News Release

January 31, 2013

Use of CoQ10, Digestive Enzymes, Probiotics and B Vitamins on the Rise According to ConsumerLab.com Survey

White Plains, New York — February 1, 2013 — A recent survey of over 10,000 people who take supplements shows that CoQ10, digestive enzymes, probiotics, and B vitamins are the four categories experiencing the most growth over the prior year.

News Release

September 27, 2012

ConsumerLab.com Reveals How Much Caffeine is in Energy Drinks -- Also Finds Some Drinks and Dietary Supplements Don't Contain Claimed Amounts of B Vitamins

White Plains, New York — September 27, 2012 — Energy shots and drinks are promoted to keep you alert and energized, attributing their effects to special formulas often "packed with B vitamins and nutrients to make it last," as a commercial for 5-hour Energy proclaims.

News Release

March 12, 2012

Review of vitamin C supplements by ConsumerLab.com finds many of high quality but a wide range in prices

White Plains, New York — March 8, 2012 — Vitamin C may boost the immune system and is critical for maintaining healthy connective tissue, but do you need to take a supplement and, if so, how do you find one that is right for you and at the best price? ConsumerLab.

News Release

February 05, 2012

Fish oil and multivitamins most popular supplements in ConsumerLab.com survey -- Internet most popular place to shop

WHITE PLAINS, NEW YORK — FEBRUARY 5, 2012 — A survey of over 10,000 savvy consumers of supplements shows the most popular supplements to be fish oil, multivitamins, vitamin D, calcium and CoQ10, in that order.

News Release

February 01, 2012

Top-rated vitamin and supplement brands and merchants on consumer satisfaction for 2012 -- Based on ConsumerLab.com Survey of Vitamin & Supplement Users

Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,260 responses collected in November, 2011. Most respondents used multiple supplements.

News Release

January 31, 2011

Vitamin D use increased 52% in past two years according to ConsumerLab.com survey of supplement users -- Fish oil continued to surpass multivitamins as most popular supplement and Internet was most common place to buy supplements

WHITE PLAINS, NEW YORK — FEBRUARY 1, 2011 — Among people who use dietary supplements, the most popular products at the end of 2010 were fish oil, multivitamins, vitamin D, calcium and CoQ10 according to a survey by ConsumerLab.com. Use of vitamin D surged in 2010 to 56.

News Release

May 05, 2008

Some iron supplements short on iron or contaminated according to ConsumerLab.com

WHITE PLAINS, NEW YORK — May 5, 2008 — ConsumerLab.com announced today that two iron supplements failed to pass recent independent testing. One "high potency" iron supplement contained only 37% of it claimed iron. ConsumerLab.

News Release

March 07, 2008

ConsumerLab.com finds most vitamin C supplements pass quality tests but one short on ingredient and some exceed tolerable levels

WHITE PLAINS, NEW YORK — MARCH 7, 2008 — ConsumerLab.com reported test results today for a wide variety of vitamin C supplements. Vitamin C is the top-selling single vitamin in the U.S., with sales of $863 million in 2006 according to Nutrition Business Journal.

Recalls & Warnings

May 18, 2023

EarthLab, Inc. Warned for Promoting Green Tea, Curcumin, Elderberry & More to Treat Stroke, Cancer & Flu

On April 27, 2023, the FDA issued a warning letter to EarthLab, Inc., dba Wise Woman Herbals, following inspection of the company’s website which found statements about the company’s Green Tea Solid Extract, Curcuma Spp.

Recalls & Warnings

December 29, 2020

FDA Warns Five Sellers of CBD for Claims of Treating Arthritis, Alzheimer's and More

On December 22, 2020, the FDA issued warning letters to five sellers of CBD following reviews of the companies' websites, which found statements made about the companies' products to be drug claims.

Recalls & Warnings

May 26, 2020

Seller of Vitamin and CBD "NoronaPak" Warned for Coronavirus Claims

On May 21, 2020, the FDA issued a warning letter to Apollo Holding LLC for promoting a kit containing vitamins and CBD with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

March 04, 2022

FTC, FDA, and DOJ Take Joint Action Against Herbal Tea Companies for COVID Claims

On March 3, 2022, the FDA, FTC, and DOJ sued a New York-based marketer of herbal tea, in attempts to permanently block deceptive ads that claim Earth Tea is clinically proven to treat, cure, and prevent COVID-19.

Recalls & Warnings

April 25, 2017

Beware of Products Which Promise to Treat or Cure Cancer, FDA Warns

On April 25, 2017, the FDA warned consumers to be aware of supplements and other products claiming to cure cancer.

Recalls & Warnings

June 10, 2017

Seller of Prostate, Immune Supplements & More Warned for Manufacturing Violations

On May 25, 2017 the FDA issued a warning letter to The Herbalist, Inc.

Recalls & Warnings

June 06, 2017

Seller of Herbal Supplements Warned for Manufacturing Violations, Drug Claims

On May 25, 2017 the FDA issued a warning letter to Life Rising Corporation, following a facility inspection which found the company's products, including Stomach Regulator, Fang Feng Formula, Skin Regulator, Regulate Liver, Circulation Regulator, Pancreas Support, Lung Regulator, Pure Tea, ...

Recalls & Warnings

August 01, 2017

FDA Warns Seller of Acai, Garcinia & More for Drug Claims

On July 25, 2017, the FDA issued a warning letter to Absonutrix, following a review of the company's website, www.absonutrix.com, which found statements made about some of its products to be drug claims.

Recalls & Warnings

July 18, 2017

FDA Warns Seller of "Quick Slim with pure Hoodia Gardonii" and "Diabalance Herbal Blood Sugar Balance"

On July 11, 2017, the FDA issued a warning letter to Black Seed Herb, Inc.

Recalls & Warnings

June 27, 2017

Seller of Alpha Lipoic Acid, Cinnamon Supplements and More Warned For Manufacturing Violations

On May 1, 2017 the FDA issued a warning letter to Nature's Vision, Inc.

Recalls & Warnings

April 02, 2021

FDA Warns Sellers of Prostate, Reishi, Immune Products, and More

On March 16, 2021, the FDA issued warning letters to two companies following reviews of their websites which found statements made about the companies' products to be drug claims.

Recalls & Warnings

May 02, 2020

Seller of Botanical and CBD Oil Patches Warned for Coronavirus Claims

On April 27, 2020, the FDA issued a warning letter to Santiste Labs LLC for promoting its transdermal patches containing botanical oils and/or CBD with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 28, 2020

Ten Multi-Level Marketing Companies Warned for Coronavirus and Deceptive Earnings Claims

On April 24, 2020, the FTC announced that it sent warning letters to ten multi-level marketing companies for selling products such as essential oils and immune system boosters with unsupported claims that they can treat coronavirus (COVID-19) and/or for misrespresenting potential earnings people ...

Recalls & Warnings

June 23, 2020

KBMO Diagnostics Warned for Unapproved COVID-19 Test

On June 17, the FDA issued a warning letter to KBMO Diagnostics, LLC for selling the product COVID-19 Fingerstick Test Kit, an unapproved, adulterated and misbranded antibody test for coronavirus (COVID-19).

Recalls & Warnings

March 09, 2022

FDA Warns Seller of Magnesium, CBD, Herbal Extracts & More

On February 9, 2022, the FDA issued a warning letter to Bea Lydecker’s Naturals, Inc.

Recalls & Warnings

March 16, 2021

FDA Warns Seller of Essential Oils

On March 12, 2021, the FDA issued a warning letter to Ravenscroft Apothecary, Inc.

Recalls & Warnings

March 09, 2021

CBD Seller Warned for Drug and COVID-19 Claims

On March 1, 2021, the FDA issued a warning letter to Cannafyl following a review of the company's website, which found statements made about the company's products Balance CBD Drops, Relief CBD Drops, Relax CBD Drops and Relief CBD Salve to be drug claims.

Recalls & Warnings

December 15, 2020

Mushroom Supplement Seller Warned for Drug Claims

On December 4, 2020, the FDA issued a warning letter to Desert Alchemist LLC following a review of the company's website, social media, and Etsy.com store (www.etsy.

Recalls & Warnings

December 11, 2020

FDA Warns Seller of Curcumin and Cholesterol Supplements

On November 20, 2020, the FDA issued a warning letter to Natures Boost LLC following a review of the company's websites, which found statements made about the company's products Blood Boost Formula and Turmeric Curcumin to be drug claims.

Recalls & Warnings

October 12, 2020

Griffo Botanicals Warned for COVID-19 Claims

On October 7, 2020, the FDA issued a warning letter to Griffo Botanicals for selling various herbal products, including BaseCamp, Gan Mao, Febris, Fortifend, Xiao Chai Hu, HuBei #1, Qing Fei Pai Du, Solis, and WuHan #2, with unsupported claims that they can treat coronavirus ...

Recalls & Warnings

October 12, 2020

Prairie Dawn Herbs Warned for COVID-19 Claims

On October 7, 2020, the FDA issued a warning letter to Prairie Dawn Herbs for selling various herbal products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

October 02, 2020

Tonic Therapeutic Herb Shop & Elixir Bar Warned for COVID-19 Claims

On September 29, 2020, the FDA issued a warning letter to Tonic Therapeutic Herb Shop & Elixir Bar for selling various herbal products, including Tonic Therapeutic Herb Shop & Elixir Bar, with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

September 29, 2020

FDA Warns Consumers about Fraudulent Tests, Vaccines, and Treatments for COVID-19

On September 21, 2020, the FDA released a statement warning consumers not to buy or use "questionable products" that claim to help diagnose, treat, cure, or prevent coronavirus (COVID-19).

Recalls & Warnings

October 30, 2020

Seller of Elderberry and Honey Products Warned for COVID-19 Claims

On October 23, 2020, the FDA issued a warning letter to Beepothecary LLC for selling the products BEEHive Delight, BEEbread, and Elderberry, Honey & Propolis Syrup with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

October 30, 2020

Simple Silver Cannot Be Promoted to Prevent or Treat COVID-19

On October 23, 2020, the FDA issued a warning letter to Peterson Research Laboratories LLC for selling the product Simple Silver with unsupported claims that it can treat coronavirus (COVID-19).

Recalls & Warnings

August 13, 2020

FDA Warns Seller of Chaga for Coronavirus Claims

On August 6, 2020, the FDA issued a warning letter to Canadian Chaga for selling 124 Chaga Capsules, Chaga Tea, and Canadian Chaga Tincture with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

August 13, 2020

FDA Warns Three More Companies Selling Unapproved COVID-19 Tests

Between July 23 and 24, the FDA issued warning letters to three companies for marketing unapproved, adulterated or misbranded antibody tests for coronavirus (COVID-19).

Recalls & Warnings

August 10, 2020

Seller Indicted for Promoting Silver Product as Coronavirus Cure

On July 28, 2020, Utah resident Gordon Pedersen was indicted by a federal grand jury for posing as a medical doctor to sell an unapproved treatment for coronavirus (COVID-19).

Recalls & Warnings

July 31, 2020

FTC Sues Golden Sunrise for Marketing Deceptive $23,000 Coronavirus Cure

On July 31, 2020, the Federal Trade Commission (FTC) charged Golden Sunrise Nutraceutical, Inc., a California-based company, with deceptively advertising a $23,000 treatment plan as a scientifically proven way to treat COVID-19.

Recalls & Warnings

September 03, 2020

Red-E Male Enhancement Capsule Recalled

On September 1, 2020, The Protein Shoppe, LLC issued a recall of Red-E male enhancement capsules because FDA analysis found it to contain sildenafil.

Recalls & Warnings

April 25, 2020

Injectable Curcumin, CBD Are Not Safe, Warns FDA

On April 9, 2020, the FDA issued a warning letter to BIOTA Biosciences LLC following a review of the company's website, which found statements made about some of the company's, products, including Canabidiol (CBD) Complex, Cannabidiol+Curcumin, and Curcumin Complex to be ...

Recalls & Warnings

May 02, 2020

Hopewell Essential Oils Warned for Coronavirus Claims

On April 27, 2020, the FDA issued a warning letter to Hopewell Essential Oils for selling its essential oils with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

May 09, 2020

Federal Court Orders Seller to Stop Promoting Silver Product as Coronavirus Cure

On April 29, 2020, a federal court in Utah announced that it has obtained a temporary restraining order preventing Gordon Pedersen and his companies, My Doctor Suggests LLC and GP Silver LLC, from promoting fake treatments for coronavirus (COVID-19).

Recalls & Warnings

May 12, 2020

FDA Warns Seller of "COVID-19 Cough Syrup"

On May 8, 2020, the FDA issued a warning letter to Seanjari Preeti Womb Healing, L.L.C. for selling its product COVID-19 Cough Syrup with unsupported claims that it can treat coronavirus (COVID-19).

Recalls & Warnings

May 12, 2020

Plum Dragon Herbs Warned for Coronavirus Claims

On May 8, 2020, the FDA issued a warning letter to Plum Dragon Herbs, Inc. for selling Chinese medicine products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

May 23, 2020

BIOTA Biosciences Recalls Injectable CBD and Curcumin Products

On May 20, 2020, BIOTA Biosciences LLC issued a recall of five lots of three injectable products because they were marketed without FDA approval.

Recalls & Warnings

June 09, 2020

Six More Multi-Level Marketing Companies Warned for Coronavirus and Deceptive Earnings Claims

On June 5, 2020, the FTC announced that it sent warning letters to six multi-level marketing companies for selling products such as immune system boosters and probiotics with unsupported claims that they can treat coronavirus (COVID-19) and/or for misrepresenting potential earnings people who have ...

Recalls & Warnings

April 21, 2020

CanaBD Warned for CBD Coronavirus Claims

On April 16, 2020, the FDA issued a warning letter to Nova Botanix LTD DBA CanaBD for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 17, 2020

Earth Angel Oils Warned for Coronavirus Claims

On April 14, 2020, the FDA issued a warning letter to Earth Angel Oils for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 14, 2020

Herbs of Kedem Warned for Making Coronavirus Claims

On April 10, 2020, the FDA issued a warning letter to Herbs of Kedem for selling products with unsupported claims that they can treat coronavirus (COVID-19).

News Release

February 06, 2008

Consumers warned of lead in some turmeric supplements — Highest lead level ever reported by ConsumerLab.com; Lack of active compound also a problem

WHITE PLAINS, NEW YORK — FEBRUARY 6, 2008 — Turmeric supplements have become popular in recent years but ConsumerLab.com warned today that some products contain high amounts of lead. Recent tests found a popular brand to contain 18.

News Release

January 08, 2008

ConsumerLab.com finds most potassium supplements meet quality standards, but one with only 18% of ingredient — Results for 12 potassium supplements in new review

WHITE PLAINS, NEW YORK — JANUARY 8, 2008 — A new report on the quality of potassium supplements was released by ConsumerLab.com today. Tests showed one product to contain only 18% of the claimed amount of this essential mineral.

Recalls & Warnings

May 09, 2013

Joint Health Supplement Recalled for Undeclared Allergens

On May 1, 2013, XYMOGEN issued a voluntary recall of the joint health supplement artriphen, because it contains undeclared soy and milk allergens.

Recalls & Warnings

January 11, 2013

Consumers May Be Eligible For Cold, Allergy and Weight Loss Supplement Refunds

On January 7, 2013, the Federal Trade Commission (FTC) announced that consumers who purchased the Iovate Health dietary supplements Accelis, nanoSLIM, Cold MD, Germ MD, or Allergy MD between January 2006 and July 2010 may qualify for a refund.

Recalls & Warnings

August 01, 2013

Fat Loss and Muscle Enhancement Supplements Found To Contain DMAA

On June 17, 2013, the FDA issued a warning letter to Formulife, Inc., dba Purus Labs, Inc., following a facility inspection which found the dietary supplements Fat Smack XR Thermolipolytic, Muscle Marinade Fresh Fruit and Muscle Marinade Cherry Limeade to contain DMAA.

Recalls & Warnings

August 28, 2013

Maker of Sexual Enhancement Supplement Warned for Manufacturing Violations

On July 11, 2013, the FDA issued a warning letter to Precise Nutrition International Inc.

Recalls & Warnings

March 05, 2014

Seller of Aloe and Vitamin C Supplements Warned for Manufacturing Violations

On December 12, 2013, the FDA issued a warning letter to Health Breakthroughs International, following a facility inspection which found the company's products, MPS Gold 100, MPS Gold 3X and Amazing C, to be adulterated because they were prepared, packed, or held under conditions that violate ...

Recalls & Warnings

January 28, 2014

Emergen-C Settles False Advertising Lawsuit

Alacer Corp., marketers of Emergen-C, has agreed to pay $6.45 million to settle a class action lawsuit which charged the company made false claims that the vitamin C supplement could boost immunity, energy and metabolism.

Recalls & Warnings

November 21, 2014

Seller of "Ebola" Supplement Warned for Drug Claims

On November 18, 2014, the FDA issued a warning letter to the seller of dietary supplement Ebola-C, following a review of the company's website, www.ebola-c.com, which found statements made about the product to be drug claims.

Recalls & Warnings

March 08, 2016

Maker of Calcium and Vitamin C Supplements Warned for Manufacturing Violations

On September 17, 2015, the FDA issued a warning letter to Raphah, Inc.

Recalls & Warnings

September 10, 2012

Maker of Concussion Recovery Supplement Warned For Making Drug Claims

On August 28, 2012, the FDA issued a warning letter to Trinity Sports Group, Inc. after a review of the company's websites found statements about Neuro Impact Concussion Response Formula constituted drug claims not permitted on supplements. 

Recalls & Warnings

February 13, 2013

Manufacturer of Heart, Multivitamin, Cranberry, and Longevity Supplements Warned For Adulteration and Drug Claims

On January 29, 2013, the FDA issued a warning letter to M.D.R. Fitness Corp. following a facility inspection which found violations of good manufacturing practices which cause the company's products to be adulterated. 

News Release

December 10, 2007

ConsumerLab.com finds improvement in quality of omega-3 and -6 supplements — Results for 22 products made from evening primrose, flaxseed, borage and black currant oils

WHITE PLAINS, NEW YORK — DECEMBER 10, 2007 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Two products were slightly low in one fatty acid, but this is an improvement over results from ConsumerLab.

Clinical Update

1/22/2012

Vitamin D and Inflammation

A new study found that raising low levels of vitamin D appears to reduce inflammation in the body (based on measurements of C-reactive protein, or CRP, a marker of inflammation). However, once vitamin D levels reached what some people consider to be barely sufficient, CRP slowly but progressively increased, suggesting an inflammatory action of vitamin D at higher levels. The study raises the question of what is the ideal level of vitamin D in the body. 

Be sure you have the latest information! See the update to the Vitamin D Supplements Review, which includes details on this and other vitamin D studies, as well as our latest product tests.

News Release

October 10, 2006

Care advised with natural cold remedies: ConsumerLab.com finds few products with proper quality and directions — ConsumerLab.com offers advice from tests of echinacea, garlic, ginseng, vitamin C, and zinc supplements

WHITE PLAINS, NEW YORK — TUESDAY, OCTOBER 10, 2006 — Autumn is the beginning of "cold season" — the period through early spring when people are most likely to develop a cold. But based on ConsumerLab.

News Release

April 26, 2006

ConsumerLab.com tests cancer-prevention supplements; several contaminated with lead or low in ingredient — Report available for green tea, selenium, and lycopene supplements

WESTCHESTER COUNTY, NEW YORK — APRIL 26, 2006 ConsumerLab.com announced results today from its new Product Review of Supplements for Cancer Prevention covering 22 products. Cancer is the second leading cause of death in the U.S.

News Release

March 30, 2005

ConsumerLab.com finds most B-vitamins of high quality but three lacking in ingredients — Test Results for 41 Products Reported Along with Information on Use

WHITE PLAINS, NY — MARCH 30, 2005 — ConsumerLab.com reported test results today for B vitamin supplements that it recently purchased in the U.S. and Canada.

News Release

March 14, 2005

ConsumerLab.com reports on vitamin C supplements — Test Results for 29 Products Reported Along with Information on Use

WHITE PLAINS, NY — MARCH 14, 2005 — ConsumerLab.com reported test results today for a wide variety of vitamin C supplements purchased at retail. Vitamin C is the top-selling single vitamin in the U.S., with sales of $770 million in 2003 according to Nutrition Business Journal.

News Release

February 08, 2005

ConsumerLab.com reports on nutrition bars — Highlights major differences, inaccuracies, and urges consumers to "know your bar"

WHITE PLAINS, NY — February 8, 2005 — ConsumerLab.com reported test results today for 34 nutrition bars, including those designed for high protein, low-carb/diet, energy, or meal-replacement.

News Release

May 21, 2004

Consumers warned of pitfalls with some multivitamins and vitamin waters — Testing by ConsumerLab.com uncovers problems with many brands

WHITE PLAINS, NY — FRIDAY MAY 21, 2004 — (Updated June 2, 2004) — ConsumerLab.com reported the results today of a major new analysis of popular multivitamin products.

News Release

January 21, 2003

Acidophilus" and other probiotic supplements gain in popularity but live bacteria missing in many — ConsumerLab.com releases review online today

WHITE PLAINS, NY — January 21, 2003 — ConsumerLab.

News Release

December 30, 2002

Top quality melatonin products identified by ConsumerLab.com — Hormone supplement used to treat sleep disturbances due to jet travel and other causes

WHITE PLAINS, NY — December 30, 2002 — In its latest Product Review, ConsumerLab.com found that 16 of 18 melatonin dietary supplements met their label claims and were free of lead contamination.

News Release

July 10, 2002

Pharmavite dietary supplements receive ConsumerLab.com approval — Vitamin E, SAM-e, St. John's Wort, Ginkgo and others merit approved quality products ranking

WHITE PLAINS, NY — July 10, 2002 — ConsumerLab.

News Release

February 08, 2002

Athletic Banned Substances Screening and Certification Program announced by ConsumerLab.com — Tester of supplements to screen for substances banned in Olympics

WHITE PLAINS, NY — February 8, 2002 — ConsumerLab.

News Release

January 08, 2002

ConsumerLab.com finds most B vitamin supplements contain what they claim, but often exceed safe levels — Consumers cautioned to be aware of side effects with high dose products

WHITE PLAINS, NY — January 8, 2002 — ConsumerLab.com announced today that all but one of the twenty-one products analyzed in its B Vitamin Product Review contained the claimed amounts of B vitamins.

News Release

November 20, 2001

ConsumerLab.com finds fish oil supplements free of mercury, but 30% lacking in key ingredient — Test results of omega-3 fatty acid (EPA and DHA) products released today

WHITE PLAINS, NY — November 20, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, released results today of its Product Review of Omega-3 Fatty Acids (EPA & DHA) from Fish/Marine Oils.

News Release

October 30, 2001

Sixty percent of nutrition bars fail to meet claims in ConsumerLab.com tests — "Low Carb" bars often loaded with carbohydrates; excess sodium and saturated fat also found

WHITE PLAINS, NY — October 30, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, released results today of its Nutrition Bar Product Review.

News Release

October 03, 2001

Most iron supplements pass ConsumerLab.com testing — Lead contamination and insufficient iron found in some

WHITE PLAINS, NY — October 3, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, released results today of its Product Review of Iron Supplements. Iron deficiency is the most common cause of anemia in the U.S. and worldwide.

News Release

August 15, 2001

Problems and ambiguity among alternative estrogen products reported by ConsumerLab.com — Results of soy and red clover isoflavone product testing released online today

WHITE PLAINS, NY — August 15, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, today released results of its Phytoestrogen Product Review. The review focused on dietary supplements made from soy and red clover isoflavones.

Recalls & Warnings

August 28, 2018

FDA Warns Seller of Goldenseal and Parasite Supplements

On August 15, 2018, the FDA issued a warning letter to Healthy Healing dba Crystal Star, following a facility inspection which found certain statements product labels, including product labels for Women's Best Friend and Para Purge, to be drug claims. 

News Release

July 09, 2001

Many herbal sleep products lack key claimed ingredient — Results of ConsumerLab.com's testing of valerian products released on web today

WHITE PLAINS, NY — July 9, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, today released results of its Product Review of valerian supplements — used primarily as sleep aids and minor tranquilizers.

Recalls & Warnings

June 23, 2017

FDA Warns Seller of Menopause, Sexual Enhancement, Prostate Supplements and More For Manufacturing Violations

On May 26, 2017 the FDA issued a warning letter to Star Health & Beauty LLC, following a facility inspection which found the company's products, including Nu Essentials Royal Jelly Capsules, NuMan Male Enhancement Capsules, Star's Male Potency Tonic, NuGen HP, She Max HP, and V Max ...

Recalls & Warnings

March 09, 2020

FDA Warns Sellers of Essential Oils, Colloidal Silver & Teas Promoted to Treat Coronavirus

On March 9, 2020, the FDA and FTC announced they have issued joint warning letters to seven companies for selling products such as essential oils, teas and colloidal silver with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

December 21, 2019

Men's Enhancement Supplement Recalled

On December 17, 2019, Motto International Corp all lots of Bull Platinum 30000, Stallion Platinum 30000, Rhino 7 Platinum 30000, and Panther Platinum 30000, to the consumer leve because FDA analysis has found they contain tadalafil.

Recalls & Warnings

November 16, 2019

Silver Bullet Supplement for Men Recalled

On November 13, 2019, Nature's Rx issued a recall of one lot of Silver Bullet male enhancement capsules because FDA analysis found it to contain sildenafil.

Recalls & Warnings

November 12, 2019

Libido Supplement for Men and Women Recalled

Update: (2/25/20) This recall has been expanded to include lots of an additional Med Man product, Bow and Arrow libido enhancer for men, highlighted below.

Recalls & Warnings

October 26, 2019

Green Lumber Enhancement Supplements Recalled

On October 22, 2019, GL Holdings issued a recall of Green Lumber, a supplement promoted for male sexual enhancement, because FDA analysis found it to contain tadalafil.

Recalls & Warnings

October 08, 2019

Seller of Tea, Colloidal Silver, Homeopathic Products Warned for Manufacturing Violations

On September 12, 2019, the FDA issued a warning letter to Herbal Healer Academy, Inc.

Recalls & Warnings

April 11, 2020

FDA Warns Seller of Products Promoted to Treat Coronavirus in Pets and Humans

On April 7, 2020, the FDA issued a warning letter to Savvy Holistic Health dba Holistic Healthy Pet for selling products intended for pets and humans with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 11, 2020

FDA Warns Sellers of CBD, Colloidal Silver & Natural Remedies Promoted to Treat Coronavirus

Between April 7 and April 9, 2020, the FDA issued warning letters to five companies for selling products such as CBD, colloidal silver, and natural treatments with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 03, 2020

Gaia's Whole Healing Essentials Warned for Colloidal Silver Coronavirus Claims

On April 1, 2020, the FDA issued a warning letter to Gaia's Whole Healing Essentials, LLC, for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

March 31, 2020

Bulletproof Warned for Manufacturing Violations

On March 20, 2020, the FDA issued a warning letter to Bulletproof 360, Inc.

Recalls & Warnings

March 29, 2020

Seller of "Immune Tonic" Warned for Making Coronavirus Claims

On March 26, 2020, the FDA issued a warning letter to Carahealth for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

March 29, 2020

FDA Warns Seller of Nasal Spray Promoted for Coronavirus

On March 26, 2020, the FDA issued a warning letter to Corona-cure.com for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

March 17, 2020

"Active Male" Supplement Recalled

On March 16, 2020, Natural Remedy Store recalled all lots of Active Male, 500mg, to the consumer level because FDA analysis has found the product contains tadalafil.

Clinical Update

8/23/2022

Can-C Eye Drops for Dry Eye?

A product called Can-C Eye Drops has been promoted for improving dry eye as well as reducing the risk of cataracts. Does the evidence support this? Find in our updated CL Answer about supplements for dry eye.

Clinical Update

7/03/2021

Probiotics for C. difficile infection?

New guidelines recommend against probiotics for treating or preventing C. difficile infection, one cause of diarrhea in people taking antibiotics. Find out why in the What They Do section of our Probiotic Supplements Review.

Recalls & Warnings

November 21, 2014

Seller of Diabetes, Prostate Supplements and More Warned for Manufacturing Violations, Drug Claims

On October 7, 2014, the FDA issued a warning letter to dietary supplement distributor Windmill Health Products, LLC, following a facility inspection which found the company's products, including Nutri-Betic caplets, Vita-betic caplets, ProstrinRx tablets, Polyflavanol capsules, and Glucoflex Joint ...

News Release

June 04, 2001

ConsumerLab.com reports test results of arthritis supplement — MSM; Quality found higher than for most supplements, but room for improvement remains

WHITE PLAINS, NY — June 4, 2001 — ConsumerLab.

News Release

May 07, 2001

Over forty percent of Echinacea products fail ConsumerLab.com review; Inadequate labeling and missing ingredients found common for popular herbal cold remedy

WHITE PLAINS, NY — May 7, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, today released results of its Product Review of echinacea supplements.

News Release

April 10, 2001

Quality of popular herbal anti-depressant found to vary; certain types of St. John's Wort supplements more likely to pass testing

White Plains, NY — April 11, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, today released results of its Product Review of St. John's wort supplements.

News Release

March 27, 2001

ConsumerLab.com expands testing of health products; success of dietary supplement evaluations leads company into broader nutrition field, beginning with popular nutrition bars

WHITE PLAINS, NY — March 27, 2001 — Having established its presence as the leading independent evaluator of the quality of dietary supplements sold in the U.S, ConsumerLab.com announced today the expansion of its work to include foods and food ingredients.

News Release

March 13, 2001

ConsumerLab.com review of vitamin E supplements finds some insufficiencies and need for clearer labeling; test results released online today

WHITE PLAINS, NY — March 13, 2001 — ConsumerLab.com today released results of its Product Review of vitamin E products. Vitamin E is one of the most popular dietary supplements in the U.S.

News Release

February 14, 2001

Problems found with multivitamins and multiminerals by ConsumerLab.com

WHITE PLAINS, NY — February 14, 2001 — ConsumerLab.com announced today that only 14 of 27 products evaluated in its Multivitamin and Multimineral Product Review achieved full "CL Approved Quality" status.

News Release

January 29, 2001

Some supplements for arthritis may exceed newly released safe intake levels for manganese

WHITE PLAINS, NY — January 29, 2001 — ConsumerLab.com issued an alert today to its online readers that that some glucosamine and chondroitin products (popularly used for osteoarthritis), exceed newly established upper intake levels for manganese.

Clinical Update

11/25/2012

Probiotics Reduce Risk of Diarrhea After Antibiotics

Taking a broad-spectrum antibiotic can disturb the natural organisms in your gut. In some cases, particularly among older, hospitalized individuals, diarrhea can result due to infection with C. difficile. This can be life-threatening. A new review of 20 clinical trials shows that probiotics can reduce the risk of C. difficile-associated diarrhea by 50% to 75% depending on the type of probiotic used. Find out more, including the type of probiotic associated with most benefit, in the updated Probiotic Supplements Review, which includes our tests and reviews of 29 probiotic supplements. More >>

Recalls & Warnings

January 16, 2015

CVS Sued for Eye Health Supplement Claims

A class-action lawsuit has been filed against CVS for promoting the company's Advanced Eye Health supplement as comparable to the formula used in the large National Institutes of Health (NIH) eye disease study known as AREDS2, despite the fact that it does not contain the same ingredients.

Recalls & Warnings

October 10, 2014

Seller of Multivitamin Warned for Drug Claims

On September 25, 2014, the FDA issued a warning letter to Multimmunity, Inc., following a review of the company's website which found statements made about the dietary supplement Multimmunity to be drug claims.

Recalls & Warnings

August 27, 2013

Immune Supplement Recalled Due To Undeclared Milk

On August 23, 2013, Reaction Nutrition, LLC issued a voluntary recall of immune support supplement LIVE CLINICAL 90 CAPS because it contains undeclared milk.

Recalls & Warnings

April 25, 2013

Vision Supplement Company Warned For Drug Claims

On March 15, 2013, the FDA issued a warning letter to Synticare Corp. because statements made on the company's website about certain supplements, including Maximum Lutein, AREDS 1, AREDS 1 Smokers, AREDS 2, Combo AREDS 1 and 2, and Combo Smokers AREDS 1 and 2, were found to be drug claims.

Recalls & Warnings

April 18, 2013

Cardio, Energy and Sexual Enhancement Supplement Distributor Warned For Manufacturing Violations and Drug Claims

On December 21, 2012, the FDA issued a warning letter to ForMor Inc, dba ForMor International, following a facility inspection which found the company's Cardio Cocktail and Argenix dietary supplements to be adulterated because because they were prepared, packed, or held under conditions that do ...

Recalls & Warnings

December 26, 2012

Seller of Blood Sugar, Depression and Sleep Supplements Warned For Making Drug Claims

On October 15, 2012, the FDA issued a warning letter to BioNeurix Corporation after statements found on the company's website, http://www.pharma-tree.com, were found to promote the dietary supplements Blood Sugar 360, Amoryn, Seredyn, and Mellodyn as drugs.

Recalls & Warnings

July 05, 2013

Seller of Vision Supplement Warned For Drug Claims

On June 25, 2013, the FDA issued a warning letter to Nutrient Synergy, Inc., following a review of the company's website which found statements made about the dietary supplement Nepretin to be drug claims.

Recalls & Warnings

March 10, 2015

Seller of Vision Supplements Warned for Manufacturing Violations, Drug Claims

On February 26, 2015, the FDA issued a warning letter to Biosyntrx, following a facility inspection which found the company's products, including BioTears Oral Gel Caps, ZoOmega-3 Concentrated Pharmaceutical-Grade Fish Oil, EpiCor A Nutrient-dense High Metabolite Immunogen, Sight C+ Mineral ...

Recalls & Warnings

February 14, 2017

Life Extension Warned for Drug Claims

On February 1, 2017, the FDA issued a warning letter to Life Extension Foundation Buyers Club, Inc.

Recalls & Warnings

July 18, 2018

Maker of Vitamin B12 and Multimineral Supplements Warned by FDA

On July 6, 2018, the FDA issued a warning letter to Aegle Nutrition, LLC, following a facility inspection which found some of the company's products, including Tropical Oasis Ionized Trace Minerals, Tropical Oasis Ultra Methyl B12, and Tropical Oasis Premium Vitamin B12 to be ...

Recalls & Warnings

December 02, 2020

FDA Warns Sellers of Unapproved COVID-19 Tests, CBD Products

On November 23 and November 30, 2020, the FDA issued warning letters to Industry Lab Diagnostic Partners and Avazo-Healthcare, LLC, respectively, for selling unapproved, adulterated, and misbranded tests for coronavirus (COVID-19).

Recalls & Warnings

May 12, 2018

Seller of Astaxanthin, Cinnamon, Pine Bark and More Warned for Manufacturing Violations

On March 22, 2018, the FDA issued a warning letter to Get The Tea following a facility inspection which found the company's products, including Get the Tea Astaxanthin Max, Get the Tea Colostrum Complete, and Get the Tea Pine Bark Capsules, to be adulterated because they were ...

Recalls & Warnings

April 17, 2018

FDA Warns Seller of Echinacea, Iron, Aloe Supplements & More for Manufacturing Violations

On March 30, 2018, the FDA issued a warning letter to Ozark Country Herbs following a facility inspection which found a number of the company's products, including Echinacea-Goldenseal, Natural Iron, and Aloe-Vera Goldenseal Salve, to be adulterated because they were prepared, packed, or held under ...

Recalls & Warnings

December 01, 2018

Seller of 5-HTP, Potassium & More Warned for Manufacturing Violations

On September 7, 2018, the FDA issued a warning letter to The Delano Company, Inc.

Clinical Update

6/09/2020

Probiotics That Do or Don't Work

An expert panel of gastroenterologists reviewed the clinical evidence for probiotics in preventing or treating C. difficile infection, IBS, ulcerative colitis, Crohn's disease, pouchitis, and necrotizing enterocolitis. Find out for which conditions they recommend probiotics and for which they don't in the What They Do section of the Probiotic Supplements Review (we've highlighted their recommendations in yellow). Also see our Top Picks for probiotics.

Clinical Update

10/10/2014

Caution with St. John's Wort

St. John's wort is known to interact with a large number of prescription drugs. That number grew larger recently when the FDA approved two new drugs to cure hepatitis C infection. Taking these drugs while using St. John's wort may lead to reduced therapeutic effect and is not recommended. More information about this and other drug interactions with St. John's wort is found in the "Concerns and Cautions" section of the St. John's Wort Supplements Review >>

Clinical Update

2/28/2017

Timing Probiotics with Antibiotics Is Key

Probiotics can reduce the risk of C. difficile infection due to antibiotics by nearly 70% if probiotics are started at the right time, according to a new study. Get the details in the "What It Does" section of the Probiotic Supplements Review (which includes our tests of products) >>

Clinical Update

7/26/2022

Some UV Light Wands May Cause Injury

While often promoted to disinfect surfaces and kill germs in the home, some UV light devices may give off potentially dangerous levels of ultraviolet-C radiation. See which brands are of concern in our Answer about UV light sanitizing wands.

Clinical Update

2/02/2024

Avoid Counterfeits: 4 Brands Added

Counterfeit versions of supplements have been sold on sites such as Amazon. Learn on how to safely purchase products online for 62 brands. We recently added information for Metamucil, Emergen-C, Dr. Mercola, and Healthy Origins.

Recalls & Warnings

April 23, 2021

FDA Warns 5 Sellers of Unapproved COVID-19 Tests

Between March 18 and April 6, 2021, the FDA issued warning letters to five companies for selling unapproved, adulterated, and misbranded tests for coronavirus (COVID-19).

Recalls & Warnings

November 07, 2015

Seller of "NaturalDoctor" Vitamin C, Echinacea and More Warned for Manufacturing Violations

On October 16, 2015, the FDA issued a warning letter Sound Healing Arts, PC, dba Grounds for Tea, LLC, following a facility inspection which found the company's products, including  NaturalDoctor Vitamins C & K3, NaturalDoctor Goldenseal & Echinacea Plus, NaturalDoctor Centella ...

Recalls & Warnings

April 26, 2013

Seller of Immune, Cholesterol, Liver and Blood Sugar Products Warned For Drug Claims

On March 20, 2013, the FDA issued a warning letter to Birkdale Medicinals LLC, following a review of the company's website which found statements made about Birkdale products, including Immune Response 247, Cholestat, Silymarin 81 and LevelStat, to be drug claims.

Recalls & Warnings

February 21, 2013

FDA and FTC Warn: Supplements Cannot Prevent, Treat Or Cure Cold And Flu

On February 11, 2013, the FDA and the Federal Trade Commission (FTC) jointly issued warning letters to three dietary supplement companies regarding their potential illegal marketing of products to prevent, treat or cure flu virus.

Recalls & Warnings

August 16, 2013

Ginkgo, Milk Thistle, Cleanse and Nopal Supplement Maker Warned For Manufacturing Violations, Drug Claims

On July 23, 2013, the FDA issued a warning letter to Natural Products Services, Inc.

Recalls & Warnings

September 05, 2014

Seller of "Nerve", "Cleanse" and Probiotic Supplements Warned for Drug Claims

On July 30, 2014, the FDA issued a warning letter to Plexus Worldwide, Inc., following a review of the company's website and product labels, which found statements made about Fast Relief, BioCleanse and ProBio5 to be drug claims.

Recalls & Warnings

November 06, 2014

Seller of Prostate, Heart Supplements and More Warned for Drug Claims

On October 9, 2014, the FDA issued a warning letter to Health Research Laboratories, LLC/New World Health, following a review of the company's websites, which found statements made about AtheChel Advanced, Betarol, BioTherapex, Omega-3 Cardio Plus, RejuvaLifeRx, and Ultimate Health Formula to be ...

Recalls & Warnings

October 30, 2014

Seller of Vitamin C, Iron and Detox Supplements Warned for Violations, Drug Claims

On October 16, 2014, the FDA issued a warning letter to Vitalab Co., Inc. (which manufactures and labels supplements for three distributors: V.E. Irons, Inc., Springreen Products, Inc., and Sonne's Organic Foods, Inc.

Recalls & Warnings

April 16, 2014

Seller of Aloe, Thyroid and Other Supplements Warned for Manufacturing Violations and Drug Claims

On March 21, 2014, the FDA issued a warning letter to Aloe Man International Corp.

Recalls & Warnings

May 02, 2017

Seller of Amino Acid Supplements & More Warned for Manufacturing Violations

On April 20, 2017 the FDA issued a warning letter to Naturecom Inc.

Recalls & Warnings

May 14, 2014

Maker of Mood, Smoking Cessation Supplements and More Warned for Violations, Drug Claims

On April 17, 2014, the FDA issued a warning letter to CDJ Holding, Incorporated, d.b.a.

Recalls & Warnings

November 06, 2014

Seller of Cholesterol, Arthritis Supplements and More Warned for Drug Claims

On October 17, 2014, the FDA issued a warning letter to Vitamins Direct (USA) and Golden Pride, Inc., which distribute Flexezy and Physician's Signature brands of dietary supplements, following a facility inspection which found statements made about certain supplements to be drug claims.

Recalls & Warnings

July 25, 2013

Beware of Dietary Supplements With Claims To Treat Diabetes, FDA Warns

On July 23, 2013, the FDA issued a warning to consumers not to buy or use dietary supplements that are promoted to treat diabetes.

Recalls & Warnings

February 15, 2013

Energy Drink Recalled Due To Bacterial Contamination

On December 21, 2012, NBTY issued a voluntary recall of the energy supplement MET-Rx Extreme Thermo Rage Watermelon 8 fl. oz. (Manufactured by MET-Rx Nutrition, Inc.) due to bacterial contamination.

Recalls & Warnings

November 02, 2012

Maker of Joint Health, Blood Sugar, Prostate, Ginkgo Supplements and More Warned For Drug Claims, Misbranding and Adulteration

On September 10, 2012, the FDA issued a warning letter to Global Source Management & Consulting for making drug claims about the following dietary supplements: Scientific Joint Program capsules, Alpha Lipoic Acid, Healthy Blood Sugar Diabetic Support, Dr.

Recalls & Warnings

September 27, 2016

Seller of B Vitamins, Omega-3s and More Warned for Manufacturing Violations, Drug Claims

On September 15, 2016, the FDA issued a warning letter to Positive Power Nutrition, following a facility inspection which found the company's products, including High Energy C-Complex, Positive Vitality, Positive Performance, Positive CardioGuard, B-Complex 100, Positive Essentials, Positive ...

News Release

November 21, 2000

ConsumerLab.com tests popular supplement for heart failure; CoQ10 test results released online today

WHITE PLAINS, NY — November 21, 2000 — ConsumerLab.com today released results of its 10th Product Review, focusing on dietary supplements containing coenzyme Q10 (CoQ10).

Recalls & Warnings

August 09, 2016

Liquid Multis, Vitamin D & More Recalled Due to Potential Bacterial Contamination

On August 8, 2016, PharmaTech, LLC issued a recall of twenty liquid vitamin supplements, sold under various brand names, because they have the potential to be contaminated with Burkholderia cepacia.

Recalls & Warnings

March 29, 2016

Maker of Bone Health, Prostate, Cholesterol Supplements and More Warned for Drug Claims

On March 17, 2016, the FDA issued a warning letter to Rx Vitamins, Inc., following a facility inspection which found the company's products, includingTestost-Rx, DB-7, The Bone Density Formula, NaturLo Cholesterol, ThyRx-7 and Arth-9 to be misbranded.

Recalls & Warnings

August 30, 2012

Supplement Company Warned For Medical Claims and Misbranding Of Omega-3, CoQ10, Noni Juice And More

On July 12, 2012, the FDA issued a warning letter to Alfa Vitamins Laboratories, Inc.

Recalls & Warnings

March 21, 2013

Probiotic Recalled Due To Undeclared Soy

On March 20, 2013, New Chapter, Inc. issued a voluntary recall of one lot of its Probiotic Elderberry dietary supplement because it may contain undeclared soy.

Recalls & Warnings

December 05, 2014

Maker of Ginseng, Zinc, Calcium and More Warned for Manufacturing Violations

On November 20, 2014, the FDA issued a warning letter to Long Island Pharmaceuticals, LLC, following a facility inspection which found the company's products to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary ...

Recalls & Warnings

December 24, 2013

Muscle Growth Supplement Linked with Liver Failure

On December 23, 2013, the FDA advised consumers to immediately stop using muscle growth supplement Mass Destruction (by Blunt Force Nutrition) because it is labeled as containing at least one synthetic anabolic steroid and has been linked to at least one reported case of liver failure.

Recalls & Warnings

October 22, 2014

Supplements Recalled Years Ago Remain on the Market, Still Contain Hidden Drugs

On October 21, 2014, a report in the Journal of the American Medical Association (JAMA) revealed that almost 10% of the supplements that have been recalled over the past few years are still on the market - and many still contain the hidden drugs which prompted their initial recall.

Recalls & Warnings

July 15, 2011

FDA Inspection Finds Manufacturing Problems with Several Supplements Including Women's Multivitamin

The U.S. FDA recently posted a Warning Letter sent to BioSan Laboratories of Derry, New Hampshire on June 17, 2011 concerning multiple violations of Good Manufacturing Practice regulations and labeling rules.

Recalls & Warnings

February 11, 2012

Herbal Sprays for Colds and Cold Sores Recalled

On February 10, 2012 the U.S. FDA posted a notice announcing the recall of all "Koff & Kold" and "Kold Sore" sprays by Wholistic Herbs Inc. The products were distributed throughout the United States.

Recalls & Warnings

April 11, 2013

Glutathione Supplement Maker Warned For Manufacturing Violations and Drug Claims

On April 5, 2013, the FDA issued a warning letter to The Glutathione Corporation following a facility inspection which found the company's supplements, including Ultrathione 500 Glutathione, Ultrathione 1000 Sports Pack, Ultrathione Performance, Ultrathione Extreme Performance, Ultrathione Health ...

Recalls & Warnings

September 05, 2013

Seller of Herbal Supplements and "Tonics" Warned For Manufacturing Violations and Drug Claims

On May 24, 2013, the FDA issued a warning letter to Sundial Herbal Products following a facility inspection which found the company's products, including Woman Back Tonic, Koromantee, Wood and Root Tonic, Arthritis, Asthma, Diabetics, Sundial Ashanti Weight Loss Energy Lifter, Appetite Suppresser, ...

Recalls & Warnings

February 06, 2015

POM Wonderful Claims Were Deceptive, Court Rules

On January 30, 2015, the Federal Trade Commission (FTC) announced that an appeals court has upheld the Commission's ruling that marketers for POM Wonderful made deceptive health claims about the product.

Recalls & Warnings

January 18, 2002

Recall of Pepsin-containing Digestive Supplements

The U.S. Food and Drug Administration (FDA) released the following Class I recall information in its January 16, 2002 Enforcement Report.

Recalls & Warnings

July 21, 2022

UV Light Wands That May Cause Injury, According to the FDA

The FDA recently warned consumers of potential exposure to unsafe levels of ultraviolet-C (UV-C) radiation associated with the use of certain brands of ultraviolet (UV) wands, as found from testing conducted by the agency.

News Release

September 06, 2000

ConsumerLab.com finds new calcium products of higher quality than many traditional supplements; Test results released online today

WHITE PLAINS, NY, September 6, 2000 — ConsumerLab.com today released results of its 9th Product Review, focusing on dietary supplements and products providing calcium. One of the most commonly purchased supplements in the U.S.

News Release

August 07, 2000

ConsumerLab.com finds that not all creatine supplements meet label claims; Popular sports supplement test results released online

WHITE PLAINS, NY, August 7, 2000 — ConsumerLab.com today released results of its 8th Product Review, focusing on creatine monohydrate dietary supplements.

News Release

July 11, 2000

Pesticide contamination found in many Ginseng supplements tested by ConsumerLab.com

WHITE PLAINS, NY, July 11, 2000 — Out of 22 brands of ginseng dietary supplements evaluated by ConsumerLab.com eight were found to contain high levels of specific pesticides, some of which also contained significant levels of lead.

Recalls & Warnings

February 20, 2013

Cold, Flu and Stress Supplement Company Warned For Adulteration, Drug Claims And More

On October 5, 2012, the FDA issued a warning letter to dietary supplement manufacturer Wholistic Herbs, Inc. following a facility inspection which found the company's products, including At-Ease, Morning Calm, Aller-Ban, Stomach Flu, Kold & Koff, Kold Sore, and L.

Recalls & Warnings

December 13, 2021

Seller of Vitamin B12 Injections Without Prescription Pleads Guilty

On December 8, 2021, 46-year-old Des Moines resident Bradley Tomlinson plead guilty to a felony charge related to the sale of misbranded vitamin B12 injectable drugs. Tomlinson began selling these injectable drugs in May 2015 and marketed them as weight loss drugs.

News Release

May 17, 2000

ConsumerLab.com test of vitamin C products identifies quality control issues and misuse of USP claim.

WHITE PLAINS, NY, May 17, 2000 — Testing of 26 brands of vitamin C dietary supplements indicated that fifteen percent either did not contain all of the claimed ingredient or failed to breakdown as needed for absorption in the body.

Recalls & Warnings

July 20, 2023

FTC Files Complaint Against Company Promoting “Sobrenix” Supplements for Alcohol Cravings

On July 19, 2023, the FTC filed a complaint against Rejuvica and the company owners for promoting its Sobrenix supplements, which contain ingredients such as vitamin B6, thiamin, milk thistle, Chanca Piedra, and dandelion root, to reduce and eliminate alcohol cravings and consumption.

News Release

April 24, 2000

ConsumerLab.com announces first test-based buyer's guide to dietary supplements; Manufacturers encouraged to have products tested for potential inclusion.

WHITE PLAINS, NY, April 24, 2000 — ConsumerLab.com announced today that it is developing the first consumer guide to dietary supplements to be based on comprehensive independent laboratory testing of popular supplements sold in the U.S. The ConsumerLab.

News Release

March 28, 2000

Only half of SAM-e supplements found to contain proper ingredients and labeling in ConsumerLab.com testing; Product Review of popular anti-depressant published online today.

WHITE PLAINS, NY, March 28, 2000 — Among 13 brands of SAM-e dietary supplements (used primarily in treating depression and osteoarthritis) only seven were found to contain labeled amounts of SAM-e (S-adenosyl-methionine). These results were reported today by ConsumerLab.

News Release

January 31, 2000

Quality of prostate supplements get mixed review in ConsumerLab.com study; Saw palmetto product review published online today.

WHITE PLAINS, NY, January 31, 2000 — Out of 27 major brands of dietary supplements purporting to contain saw palmetto for treating symptoms of prostate enlargement, only 17 appeared to have ingredients similar to those found in published clinical studies.

News Release

January 24, 2000

Majority of dietary supplements sold in U.S. being tested by ConsumerLab.com in 2000; newest results due January 31 for Saw Palmetto.

WHITE PLAINS, NY, January 24, 2000 — As part of its ongoing independent evaluation of health, wellness, and nutrition products sold in the U.S., ConsumerLab.com announced that by year-end it is to have independently tested most of the popular brands of dietary supplements sold in the U.S.

Recalls & Warnings

September 14, 2023

FDA Warns CVS, Walgreens, Similasan & Others for Eye Drop Violations

On September 11, 2023, the FDA issued Warning Letters to the following eight sellers of homeopathic and other types of eye drops regarding the products noted in italics due to a variety of violations of FDA regulations, most notably that they were marked with claims suggesting that they could cure, ...

Recalls & Warnings

December 22, 2021

FDA Warns Seller of Liquid Magnesium, B-12, Berberine & More

On December 9, 2021, the FDA issued a warning letter to Wholly Liquid Nutritional Supplements LLC because it found statements on the company's website and social media about its products, including SpiroLaze, BioLaze, LiquiLaurin, VIT-B12, DeStress, and Omega Plus, to be ...

Recalls & Warnings

March 09, 2021

FDA Warns Sellers of Three More Hand Sanitizers, One with Toxic Ingredient

On March 1, 2021, the FDA issued warning letters to three sellers of hand sanitizers because laboratory tests showed that their products do not contain the amount of ethanol as stated on their labels. The products are MEDICALLY MINDED Hand Sanitizer Gel from Plasticos Las Palmas, S.A. de C.

Recalls & Warnings

July 31, 2018

FDA Warns Seller of Joint Health and Cholesterol Supplements

On July 13, 2018, the FDA issued a warning letter to GC Natural, following a facility inspection which found a number of the company's products, including Red Pyrola Plus + Advanced Joint Formula Capsules, CSDP GOLD Capsules, Rejeune Optimal Kidney & Liver Support Extract balls, C.

Recalls & Warnings

February 05, 2019

Hill's Science Diet, Prescription Diet Dog Food Recalled Due to Risk of Vitamin D Toxicity

Recall Expanded (3/20/19): This recall was expanded to include additional products.

Recalls & Warnings

August 18, 2017

FDA Warns Consumers Not to Use Certain Liquid Multis, Vitamin D, and Other Supplements Due to Potential Bacterial Contamination

On August 11, 2017, the FDA advised the public not to use any liquid drug or dietary supplement products manufactured by PharmaTech LLC of Davie, Florida, and labeled by Rugby Laboratories, Major Pharmaceuticals, and Leader Brands, because they have the potential to be contaminated with ...

Recalls & Warnings

October 24, 2012

Garlic Supplement Maker Warned For Misbranding and Drug Claims

On October 10, 2012, the FDA issued a letter to dietary supplement manufacturer Garlic Wise because statements made in a brochure about the company’s Alli-C garlic supplement promote the product as a drug. Alli-C was also found to be misbranded due to inadequate directions for use.

Recalls & Warnings

January 21, 2017

Seller of "Cancer Kits," Alpha Lipoic Acid Supplements and More Warned for Drug Claims

On December 22, 2016, the FDA issued a warning letter to Northern Health Products, Inc. following a review of the company's websites, www.northernhealthproducts.com and www.petdca.

Recalls & Warnings

March 31, 2005

FDA Warns Marketer of "Vitamin O" Product to Cease Unsubstantiated Claims

The U.S. Food and Drug Adminstration (FDA) has sent a Warning Letter (dated February 8, 2005) to Donald L. Smyth, President, R-Garden Inc., and Rose Creek Health Products, Inc. warning that its "Vitamin O" product was, among other things, being marketed with unsubstantiated health claims.

Recalls & Warnings

February 07, 2002

Recall of Additional Pepsin-containing Digestive Aids

The U.S. Food and Drug Administration (FDA) released the following Class I recall information in its February 6, 2002 Enforcement Report.

Recalls & Warnings

March 04, 2008

Airborne Settles Lawsuit Over False Advertising of its "Miracle Cold Buster"

On March 4, 3008, the Center for Science in the Public Interest (CSPI) announced that the makers of Airborne -- a multivitamin and herbal supplement whose labels and ads falsely claimed that the product cures and prevents colds -- will refund money to consumers who bought the product, as part of a ...

Recalls & Warnings

April 11, 2013

Chinese Herbal Manufacturer Warned For CGMP Violations

On March 20, 2013, the FDA issued a warning letter to Finemost Corporation, dba Qualiherb, following a facility inspection which found the company's supplements, including Yi Zhi Tang and C.

Recalls & Warnings

January 27, 2015

Seller of Aloe, Sexual Enhancement Supplements and More Warned for Manufacturing Violations, Drug Claims

On January 8, 2015, the FDA issued a warning letter to Aloe Man, Inc., following a facility inspection which found the company's products, including The Aloe Man's Super Bright, Dr. Johnson's Maximum Desire, Dr. Johnson's Body Healer, and Dr.

Recalls & Warnings

March 10, 2015

Maker of Magnesium, Calcium, Zinc, B Vitamins and More Warned for Manufacturing Violations, Drug Claims

On January 8, 2015, the FDA issued a warning letter to Complete H2O Minerals, following a facility inspection which found the company's products, including Sulfur Concentrate, Copper, Extra Strength Copper, Extra Strength Magnesium, Extra Strength Zinc, Platinum, Gold, Indium, Molybdenum, ...

Recalls & Warnings

June 09, 2016

Nature Made Multis and B Complex Recalled Due to Salmonella, Staph Risk

On June 8, 2016 Pharmavite LLC issued a recall of the following Nature Made® multivitamin and B complex supplements because they have the potential to be contaminated with Salmonella or Staphylococcus aureus:

Recalls & Warnings

June 13, 2012

FDA Warns NatureMost of Failing to Follow Good Manufacturing Practices

The U.S. FDA recently sent a Warning Letter to NatureMost of New England regarding violations of FDA regulations int the manufacture and marketing of its dietary supplements.