Search term may appear only in full report available to members. Join now for full access.

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

Product Review

Multivitamin and Multimineral Supplements Review

Best Multivitamins In 2023 -- Caution with Gummies

CL Answer

Which is the best form of magnesium to take - one that contains the most magnesium and is best absorbed?

Info on which is the best form of magnesium supplements to take and what to look for when choosing the best magnesium supplement. ConsumerLab.com explains.

Product Review

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

Find the Best Vitamin D Supplement with the Right Dose

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

How much magnesium do I need and how much magnesium from supplements is too much?

Find out how much magnesium you should be getting on a daily basis, signs of magnesium deficiency, and how much magnesium is too much, particularly from magnesium supplements and laxatives containing magnesium. Find out the side effects and potential adverse effects of too much magnesium.

CL Answer

How do I choose the best magnesium supplement?

Choosing the best form of magnesium supplements can be tricky due to the many different types (magnesium aspartate, bicarbonate, carbonate, chloride, citrate and others).

CL Answer

What is the benefit of magnesium orotate compared to other forms of magnesium?

Find out if magnesium orotate is the best form of magnesium for supplements, including safety concerns.

CL Answer

Help! How do I know how much magnesium I am actually getting from my supplement? The label says it contains 500 mg of magnesium "as magnesium citrate" -- but how much of that is magnesium and how much is citrate?

Understand the actual amount of magnesium dosage (or "elemental magnesium") you are getting from your supplement. ConsumerLab.com explains.

CL Answer

What are the side effects of magnesium supplements?

Info on magnesium supplement side effects, such as stomach upset, nausea and diarrhea. Learn about magnesium dosage, safety and drug interactions. ConsumerLab.com answer explains.

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.

CL Answer

Is it true that magnesium bisglycinate from BioSchwartz is less likely to cause a laxative effect than other forms of magnesium?

Find out if the Magnesium Bisglycinate from BioSchwartz is better than other forms of magnesium and how much magnesium this product contains. ConsumerLab.com's answer explains.

Product Review

Potassium Supplements Review

Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.

CL Answer

Do any supplements, foods, or oils help reduce muscle pain, muscle cramps, or nighttime leg cramps?

Find out which supplements, and topical products such as magnesium creams, can help reduce muscle pain, leg cramps, and nighttime leg cramps, and which may worsen muscle cramps. Also, learn about vitamin and mineral deficiencies and common medications that can cause muscle cramps and nocturnal leg cramps.

Product Review

Electrolytes & Sports Drinks Review

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

CL Answer

Does magnesium cause diarrhea? Are some forms less likely to cause loose stools than others?

Could your magnesium supplement be causing diarrhea? Find out why the dose of magnesium in your supplement matters, and which forms of magnesium are less likely to cause diarrhea ConsumerLab.com's answer explains.

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.

CL Answer

Can magnesium supplements reduce heart palpitations or PVCs?

Having low blood levels of magnesium has been associated with abnormal heart rhythms known as PVCs (premature ventricular complexes). Find out if taking magnesium supplements can help.

CL Answer

I've read that magnesium deficiency is rare but also that most people don't get enough magnesium. How can these both be true?

Learn how common magnesium deficiency is, and why, even if you are not deficient, you may still benefit from getting more magnesium. ConsumerLab.com's answer explains.

CL Answer

Will an Epsom salt bath increase magnesium levels in my body like a supplement?

Find out if Epsom salt baths can increase magnesium levels in the body like a supplement. Plus, see evidence for other methods other transdermal methods of obtaining magnesium, such as magnesium creams, oils and sprays. ConsumerLab.com's answer explains.

CL Answer

Is it true that I should not keep magnesium supplements in a daily pill pack mixed with other supplements and medicines?

Find out if magnesium should be stored separately from other types of supplements.

CL Answer

What is magnesium stearate, what is it made from, and is it dangerous?

Learn more about magnesium stearate and its safety, based on evidence from clinical studies.

Product Review

Protein Powders, Shakes, and Meal Replacements Review

Find Out Which Protein Products Passed or Failed Our Tests

CL Answer

Do magnesium supplements, like Magtein, help memory or protect against Alzheimer's disease?

Magtein, and other magnesium supplements, may help memory and protect against Alzheimer's disease.

CL Answer

Is magnesium citrate safe? I heard that it might cause damage to the esophagus.

Find out if magnesium citrate is safe to use or if it causes damage to the esophagus.

CL Answer

Are there drug interactions with magnesium supplements?

Find out about interactions between magnesium supplements and over-the-counter antacids and laxatives such as Maalox, antibiotics, and statins and diabetes medications. ConsumerLab’s answer explains.

Product Review

Coconut Waters Review

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

Product Review

GABA Supplements Review

Does GABA Work As a Supplement?

Product Review

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

See Which B Vitamins Are ConsumerLab's Top Picks!

CL Answer

Does drinking coffee deplete vitamins or minerals, such as magnesium, in the body? Can adding magnesium or other minerals reduce the acidity or improve the flavor of coffee?

Coffee can reduce absorption or increase loss of certain vitamins and minerals. Find out which are affected, and what steps can be taken to reduce the effect of coffee on these nutrients.

Product Review

L-Lysine Supplements Review

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

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.

Product Review

Probiotic Supplements Review (Including Pet Probiotics)

Probiotics: See What They Really Contain and Our Top Picks

Product Review

Alpha Lipoic Acid Supplements Review

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

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.

Product Review

L-Theanine Supplements Review

Touted for Stress Relief, Do L-Theanine Supplements Work?

Product Review

Alginate Supplements Review (For Reflux)

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

Product Review

Iron Supplements Review (Iron Pills, Liquids and Chews)

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

CL Answer

Are supplements with amino acid chelated minerals better than those with other forms of minerals?

Learn more about chelates, including evidence from clinical studies on selenium, iron, and magnesium.

Product Review

D-Mannose Supplements

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

Product Review

Melatonin Supplements Review

Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.

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.

Product Review

L-Arginine Supplements Review

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

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.

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.

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.

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!

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.

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.

Product Review

Whole, Ground, Milled, and Cracker Flaxseed Review

High Levels of Cadmium Found in Flaxseed Products — Testing Expanded

Product Review

Red Yeast Rice Supplements Review

50% of Red Yeast Rice Supplements "NOT APPROVED" in CL Tests

CL Answer

When is the best time of day to take a multivitamin?

Find out the best time of day to take your multivitamin for best absorption of vitamins and minerals, whether you should take your multi with food, which vitamins and minerals may inhibit the absorption of other vitamins and minerals, or medications. ConsumerLab.com's answer explains.

News Release

December 07, 2023

Best Shelled Walnuts According to ConsumerLab Tests

White Plains, New York, December 7, 2023 —  Fresh walnuts are rich in healthful, unsaturated fats, protein, fiber, and certain vitamins and minerals, but how fresh and pure are packaged, shelled walnuts? And does higher cost guarantee better quality or taste? To find out, ConsumerLab recently ...

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

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.

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.

CL Answer

Do any supplements or foods help with migraine? Do any trigger migraine?

Find out if supplements such as magnesium, CoQ10, riboflavin, butterbur, feverfew and others help with migraine. Also learn about foods that may trigger migraine, including chocolate and watermelon.

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.

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.

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.

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

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.

CL Answer

How can I easily compare the ingredients in supplements?

Find out how to easily compare the ingredients in different supplements, find the full list of ingredients for products and a database of dietary supplement labels. ConsumerLab.com's answer explains.

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.

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.

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.

Product Review

Aloe Juices, Gels, and Supplements Review

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

Product Review

Ginseng Supplements Review

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

CL Answer

Are there supplements I should take, or take differently, when intermittent fasting?

Supplements that may help when intermittent fasting. Information about whey protein, CoQ10, magnesium and others, plus coffee, fiber and more.

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.

Product Review

Cinnamon Supplements and Spices Review

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

Product Review

Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)

Do Creatine and BCAAs Really Improve Strength and Recovery?

Product Review

Saffron Supplements Review

See How Saffron Supplements Compare and What They Do

Product Review

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

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.

Product Review

PQQ (Pyrroloquinoline Quinone) Supplements Review

Learn What PQQ Does and Which PQQ Supplements are Best

CL Answer

I have low blood pressure. Are there any supplements I should avoid?

Find out which supplements can cause decreases in blood pressure, including melatonin, arginine, magnesium, and calcium.

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.

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

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.

Product Review

Ashwagandha Supplements Review

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

CL Answer

Which supplements and lifestyle changes improve sleep, and which cause insomnia?

Find out which vitamins may help you sleep and learn if any vitamins or supplements can cause insomnia.

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

Product Review

Garlic Supplements Review

Find the Best Garlic Supplements. CL Tests Reveal Big Differences in Garlic Strength -- Some Have Little to No Garlic!.

Product Review

DHEA Supplements Review

Choose the Best DHEA Supplement. Beware of Big Differences in Dose and Price.

Product Review

Vitamin C Supplements Review

Find the Best Vitamin C Supplements

CL Answer

Are people with kidney disease at risk of getting too much potassium if they take a multivitamin? Which multivitamins are best for people with kidney disease?

Learn if people with kidney disease are at increased risk of getting too much potassium from multivitamins, find out which multivitamins do not contain potassium, and learn what other products should be avoided by people restricting potassium intake.

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.

CL Answer

I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?

Supplement interactions with proton pump inhibitor (PPI) drugs like omeprazole (Prilosec) and Nexium.

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.

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.

Product Review

Cholesterol-Lowering Supplements Review (Sterols/Stanols and Policosanol)

Find the Best Cholesterol-Lowering Supplement. See Which Plant Sterol and Policosanol Supplements Passed Our Tests and Are Our Top Picks.

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!

Product Review

Cranberry Juices and Supplements Review

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

Product Review

SAMe (S-adenosyl-methionine) Supplements Review

Choose the Best SAMe Supplement. CL Tests Reveal Big Differences in Quality and Cost.

Product Review

Turmeric and Curcumin Supplements and Spices Review

See Our Top Picks Among Turmeric Products

CL Answer

After taking a curcumin supplement, I started getting chronic diarrhea which went away when I stopped taking it. Can curcumin supplements cause diarrhea?

Learn more about the side effects of curcumin supplements, including diarrhea and other gastrointestinal discomfort.

Product Review

Collagen Supplements Review

See our Top Picks for Wrinkles and Joints

CL Answer

Tablets I purchased are becoming "crumbly" after a few weeks and are easy to break. Is there a problem with this supplement?

Should you be concerned if your supplement tablets have started to crumble? Learn more including the best way to keep pills from getting soft.

CL Answer

Does taking a laxative interfere with the absorption of vitamins or minerals?

Information on laxative interactions with other medications and supplements such as Maalox, antibiotics, and statins and diabetes medications.

CL Answer

Do any supplements or diets help prevent or treat osteoporosis?

If you have osteoporosis, you may be interested in supplements or diets for bone health. Find out which can increase bone strength and density.

Product Review

Seaweed Snacks and Foods Review

Tests Reveal Seaweed Snack Risks

CL Answer

Are there any supplements I should avoid when taking an antibiotic? Are there any that may be helpful?

Find out which supplements can negatively interact with antibiotics, including vitamin K, magnesium, and calcium, and which may be helpful when taking antibiotics.

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.

Product Review

Garcinia Cambogia (HCA) Supplements Review

Find the Best Garcinia Cambogia Supplement. Choose Carefully! Most Garcinia (HCA) Weight Loss Supplements Lack Listed Amount of Ingredient .

Product Review

Milk Thistle Supplements Review

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

CL Answer

Can any supplements improve or worsen symptoms of fibromyalgia?

Find out if any supplements may help improve fibromyalgia symptoms, learn which supplements do not seem beneficial, and find out if any supplements worsen symptoms.

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.

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.

CL Answer

Do any supplements help reduce menstrual pain or symptoms of premenstrual syndrome (PMS)?

Find out which supplements help reduce premenstrual syndrome (PMS) symptoms, such as mood swings, pain, bloating, irritability and food cravings.

Product Review

Oat Cereals Review

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

Product Review

Ginger Supplements, Chews & Spices Review

Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.

CL Answer

What is hydrogen water? Is it beneficial for alertness, athletic performance, arthritis or other conditions, and is it safe?

Find out if hydrogen water has benefits with regard to alertness, side effects of radiotherapy in cancer patients, metabolic syndrome, athletic performance, rheumatoid arthritis, liver disease, and other conditions, and learn if it is safe to use.

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.

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.

CL Answer

Which supplements may benefit people with essential tremor, and which should be avoided?

Learn about supplements used for treating essential tremor, including caprylic acid (also called octanoic acid), thiamin (vitamin B1), cannabidiol (CBD), GABA (gamma-aminobutyric acid), and branched-chain amino acids. Find out which work and which don't. Also find out which supplements and food may make essential tremors worse.

CL Answer

I've read that the best form of vitamin E is d-alpha tocopheryl succinate (it's recommended in the paleo diet, for example), but I don't see that listed on product labels. How can I find it?

Learn more about the different names and types of vitamin E, including d-alpha tocopheryl succinate, natural and synthetic.

CL Answer

Can taking CoQ10 affect my thyroid levels or interact with my thyroid medication?

Learn more about CoQ10 and thyroid medications along with natural thyroid function. ConsumerLab.com's answer explains.

Product Review

L-Citrulline Supplements Review

Learn How Citrulline Products Differ and Our Top Picks

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.

CL Answer

Which supplements reduce the risk of stroke? Which increase the risk of stroke?

Find out which supplements (may help reduce the risk of stroke/might increase the risk of stroke.)

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.

News Release

July 20, 2022

Best Electrolyte Drinks for Hydration? Note: Some Contain 20 Times More Sodium Than Others

  White Plains, New York, July 20, 2022 — It's important to stay well hydrated, and electrolyte products can help.

Product Review

Nattokinase Supplements Review

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

Product Review

Chromium Supplements Review

Chromium Supplements Review. Best Chromium Supplements Identified -- By Strength.

Product Review

Taurine Supplements Review for People, Dogs, and Cats

Find the Best Taurine Supplements. Learn When to Use Taurine and Which Supplement is Best.

CL Answer

Is there a multivitamin that contains only the recommended daily vitamins and minerals? Most that I have looked at contain more.

Are there any multivitamins that contain only the recommended daily vitamins and minerals? Choose the best multivitamin based on age & gender.

Product Review

Echinacea Supplements Review

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

Product Review

Quercetin & Rutin Supplements Review

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

CL Answer

Which supplements and foods help relieve constipation and which can cause constipation?

Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.

CL Answer

Which supplements help to improve energy and decrease fatigue?

Energy supplements and vitamins - Some can help increase energy and reduce fatigue, including CoQ10, curcumin/turmeric, cocoa, and B vitamins.

CL Answer

A blood test showed my vitamin D level is low. How do I know how much vitamin D to take?

Find out how to increase vitamin D blood levels, including a good target range.

CL Answer

3 Tips to Prevent Powdered Supplements from Clumping

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

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.

CL Answer

How much calcium from supplements is too much?

Too much calcium per day - how much is too much? Learn about the recommended daily intake from food & supplements and why taking too much calcium can be harmful.

CL Answer

Do electrolyte supplements, like Pedialyte, help with hangovers?

Find out if electrolyte supplements and drinks, like Pedialyte, help with hangovers. See the clinical evidence about the effects of drinking alcohol on the balance of electrolytes such as sodium and potassium, plus, other tips for staying hydrated.

Product Review

Digestive Enzyme Supplements Review

Big Differences in Strength Found Among Digestive Enzyme Supplements. CL Tests Reveal Which Are Best.

Product Review

St. John's Wort Supplements Review

Find the Best St. John's Wort Supplement. Only 40% of St. John's Wort Supplements Pass Tests & Strength Varies Widely.

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.

Product Review

Selenium Supplements Review

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

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

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.

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.

Product Review

Prostate Supplements Review (Saw Palmetto and Beta-Sitosterol)

Find the Best Prostate Supplement for Symptoms of BPH. See Which Prostate Supplement Passed or Failed CL's Tests of Quality.

Product Review

Resveratrol Supplements Review (From Red Wine, Knotweed, and Other Sources)

See Which Resveratrol Supplements Were Best In Our Tests and Comparisons. Learn What Resveratrol Can and Can't Do.

CL Answer

Can glycine improve sleep, reduce depression, or reduce nighttime urinary frequency?

Can glycine really help improve sleep, reduce depression, or reduce nighttime urinary frequency? Lean more about glycine and its uses and benefits.

CL Answer

Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?

Information about lemon juice, lemonade, orange juice, cranberry juice and other juices for increasing urinary citrate and reducing the risk of kidney stones.

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.

Product Review

Bilberry Supplements Review

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

Product Review

Low-Dose Lithium Supplements Review

Choose the Best Low-Dose Lithium Supplement. CL Tests Reveal Which Low-Dose Lithium Supplements Offer the Best Quality and Value.

Product Review

Vitamin E Supplements Review

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

CL Answer

Is it true that eating Brazil nuts can help with weight loss? Are there other health benefits or risks of Brazil nuts

Learn more about vitamin E intake from nuts, including Brazil nuts, hazelnuts, and almonds.

CL Answer

Does Carditone work to lower blood pressure?

Carditone information, including safety and side effects, whether Carditone has been shown to work for blood pressure and angina, and more.

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.

CL Answer

What are "hypoallergenic" supplements? How can I find hypoallergenic supplements on ConsumerLab.com?

Hypoallergenic supplements are typically formulated without ingredients known to be common food allergens, such as milk, fish, shellfish, eggs and nuts, and/or gluten , and certain artificial coloring agents, and fillers. ConsumerLab has tested many hypoallergenic supplements including multivitamins, probiotics, protein powders and more.

CL Answer

How important it is to reduce total dissolved solids (TDS) in drinking water from my tap?

Removing dissolved solids (TDS) may be desirable if your tap water is known to contain large amounts of dissolved solids that negatively affect taste, but you may also be removing essential minerals. Learn more about our tests of water filter pitchers.

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.

Product Review

Kelp Supplements Review

Choose the Best Kelp Supplement. Be Cautious With Kelp! Only 50% of Supplements Pass CL's Review.

Product Review

Valerian Supplements Review

Choose the Best Valerian Supplement. Strength and Contamination Vary Widely Among Popular Valerian Brands.

Product Review

L-Tryptophan and 5-Hydroxytryptophan (5-HTP) Supplements Review

Choose the Best L-Tryptophan and 5-HTP Supplements. CL Tests Identify High Quality L-Tryptophan and 5-HTP (5-Hydroxy-L-Tryptophan) at the Best Value.

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.

CL Answer

Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.

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.

Product Review

Shelled Walnuts (Halves & Pieces)

See Our Top Picks for Walnuts

CL Answer

What is shilajit? Does it have any proven health benefits, and is heavy metal contamination a concern?

Shilajit information, including its potential health benefits, safety, proper doses and impact on male health.

Product Review

Psyllium Fiber Supplements Review

Find the Best Psyllium Fiber Supplement and Avoid Lead.

Product Review

Phosphatidylserine (PS) Supplements

Find out if phosphatidylserine helps with memory and which products are best.

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.

Product Review

Acetyl-L-Carnitine Supplements Review

Choose the Best Acetyl-L-Carnitine Supplement. Don't Overpay! CL Identifies Quality Acetyl-L-Carnitine Supplements at the Best Value.

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.

CL Answer

Do any supplements or foods benefit people with Crohn's disease? Are there any supplements that should be avoided?

Find out the most common vitamin and mineral deficiencies in people with Crohn's disease, including iron, B6, B12, vitamin D, zinc and others, plus evidence for N-acetyl-glucosamine (NAG), fish oil, and curcumin.

CL Answer

8 Supplements That May Help Treat Peptic Ulcers – And Some to Avoid

Peptic ulcers caused by H. pylori infection are typically treated with antibiotics, but certain supplements may also help. Find out which 8 supplements might be beneficial - and which should be avoided.

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.

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.

CL Answer

Which dietary supplements, health foods or spices contain high levels of lead?

Information about lead and heavy metals in vitamins, supplements and foods. Information on the adverse effects of lead.

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.

Product Review

NAC (N-Acetyl Cysteine) Supplements Review

Choose the Best N-Acetyl Cysteine Supplement. See Our Tests of Popular NAC Supplements and Top Picks for Quality and Value.

CL Answer

What are the best supplements for depression and anxiety?

Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.

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.

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.

CL Answer

I'm worried that I'm not getting enough potassium, but potassium supplements only provide a small dose -- much less than the daily requirement. Why is this, and how can increase my daily intake?

Find out why many potassium supplements contain small doses of potassium and how to get adequate potassium from food and supplements.

Recalls & Warnings

August 08, 2022

Recall of Oral Magnesium Laxatives Expanded

On August 3, 2022, Plastikon Healthcare, LLC issued a recall of multiple oral suspension products due to microbial contamination.

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.

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.

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.

CL Answer

Is topical menthol, such as Biofreeze, safe and effective for pain relief?

Menthol is commonly used in topical creams and gels for pain relief. Find out if it works and if it's safe.

CL Answer

I'm interested in using Himalayan salt. What are the health benefits with it and other specialty salts? Are there contaminants in these salts?

Himalayan salt health benefits, along with other gourmet salts like Hawaiian and Mediterranean. Info including what's in them and their safety.

CL Answer

Do any supplements help for ulcerative colitis?

Find out what supplements & vitamins can help with ulcerative colitis, such as VSL#3, curcumin, aloe or boswellia.

CL Answer

Does Restore (Biomic Sciences LLC) really improve gut health? What is in Restore?

Learn more about Restore, including clinical studies on gut health, dosage, cost, and safety.

CL Answer

Is sublingual vitamin B-12, which is placed under the tongue and allowed to dissolve, really better than the pill form?

Learn the difference between sublingual vitamin B-12, vitamin B-12 pills and more through information including clinical evidence.

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.

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.

Product Review

CoQ10 and Ubiquinol Supplements Review

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

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.

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.

CL Answer

The distributor of my cacao powder says it checks for "metal fragments" in its products. Is this adequate to check for heavy metals, like cadmium and lead, that you've found in cocoas and chocolates?

Find out if tests such as foreign metal detection can show if cocoa powders and chocolate products are contaminated with heavy metals such as cadmium and lead. See amounts of these toxic heavy metals were found in cocoa and chocolate products tested by ConsumerLab.com

CL Answer

I have IBS and don't want to take medication if I can help it. I've heard that peppermint works for IBS, but is there good research to support this?

Information about using peppermint oil for irritable bowel syndrome (IBS), including clinical evidence, dosage, safety and more.

Recalls & Warnings

July 18, 2022

CVS, Target, Walgreens, and Other Oral Magnesium Citrate Laxatives Recalled Due to Bacterial Contamination

On July 14, 2022, Magnesium Citrate Laxative Oral Solution Lemon Flavor products manufactured by Vi-Jon, LLC and sold under various store brand names were recalled after testing identified the presence of the bacteria Gluconacetobacter liquefaciens.

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.

CL Answer

Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Find out which supplements help improve memory, brain function and cognition, including fish oil, some B vitamins, cocoa, and curcumin. ConsumerLab's answer explains the evidence for supplements promoted to help with brain function and cognition.

CL Answer

PFAS (Per- and Polyfluoroalkyl Substances): How can I avoid PFAS in dental floss, food, water, and other products?

Some brands of dental floss, including Oral-B Glide, may contain potentially toxic chemicals known as PFAS (polyfluoroalkyl substances). Get the details, and learn which floss and pick products are our Top Picks.

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

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.

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.

CL Answer

Butyrate Supplements for Gut Health: Does butyric acid really work and is it safe?

Can butyrate supplements improve gut health or help reduce symptoms of irritable bowel syndrome (IBS) or Crohn's disease? Find out what the clinical evidence shows, learn about the different forms of butyrate, including sodium butyrate, calcium-magnesium butyrate, and tributyrate, and get details about products such as BodyBio Sodium Butyrate and Healus Complete Biotic Tributyrin, dosage, safety and cost.

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.

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.

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.

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

What are the health benefits of nutritional yeast and is it safe?

Learn about the nutritional content and health benefits of nutritional yeast (nooch), evidence for or against nutritional yeast for boosting the immune system, lowering cholesterol and blood sugar, plus safety and side effects of nutritional yeast.

CL Answer

Are enteric coated supplements better than non-enteric coated ones?

Learn about the pros and cons of enterically coated supplements, including ingredient absorption,safety and price.

CL Answer

Do any supplements help relieve stress?

Are there actually supplements for stress relief and panic attacks? Learn more about holy basil, fish oil, L-theanine, and ginseng.

CL Answer

Is it better to use a powdered product that you mix with liquid than to take a pill? I was told that the vitamins will be more completely absorbed. Is that true?

Learn more about taking supplements & multivitamins in powder or tablet form, including tips on how to get the most from your supplement.

CL Answer

Can drinking coffee prevent gallstones? Can supplements help?

Information about the impact coffee has on gallstone disease. Plus, supplements that have been proposed to help with gallstone pain.

Product Review

Huperzine A Supplements Review

Choose the Best Huperzine A Supplement. CL Tests Reveal the Best Huperzine A Supplements for Memory.

Product Review

Toprol XL vs. Generic Metoprolol Succinate Extended-release (ER) Tablets Review Article

Choose the Best Blood Pressure Medication. Find Out Why Some Generic Blood Pressure Medications Are Not the Same as the Original & May Increase Blood Pressure or Have Other Disturbing Side Effects.

News Release

May 18, 2021

Caution With Potassium Supplements: You Could Get More Than Expected

White Plains, New York, May 18, 2021 — Recent tests by ConsumerLab.com of popular potassium supplements on the market revealed that consumers to get much more or much less potassium than expected from certain products.

Product Review

Elderberry Supplements Review

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

Product Review

Holy Basil Supplements Review

Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.

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.

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.

Product Review

Reishi Mushroom Supplements Review

Find the Best Reishi Mushroom Supplement. See How Reishi Supplements Differ.

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.

Product Review

Bone Broth Review

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

Product Review

Prebiotic Supplements Review

You Can't Tell How Much Fiber Is Really In Most Prebiotics Without Testing

Recalls & Warnings

June 11, 2016

Vitacost Settles Magnesium Supplement Lawsuit

Supplement retailer Vitacost.com has settled a class action lawsuit which alleged the magnesium content of the following Vitacost magnesium products was misrepresented because the labels failed to list magnesium oxide as an ingredient:

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.

Recalls & Warnings

April 27, 2023

Seller of Magtein, Veggie Caps, & More Warned for Drug Claims, Manufacturing Violations

On March 8, 2023, the FDA issued a warning letter to Spartan Enterprises Inc., dba Watershed Wellness Center, after a review of the company’s website found statements about its Dr. Bob’s Naturals Spirulina, Dr. Bob’s Naturals Magtein, Dr.

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

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.

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.

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.

Recalls & Warnings

April 03, 2024

FDA Warns Ambaya Gold for Promoting Products for Depression, Cancer, & Arthritis

On December 5, 2023, the FDA issued a Warning Letter to Ambaya Gold Health Products, LLC following review of the company’s website and social media, which found statements about the company’s Brain Balance, Immune System Boost, Dentist In A Bottle, Essensiac, Fulvic Green, Silver ...

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.

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.

CL Answer

I read that famotidine (Pepcid) may help treat COVID-19. Is this true? Might a proton pump inhibitor, like Prilosec, help?

Pepcid (famotidine) was reported to improve outcomes in people with COVID-19 in China. But is there evidence that Pepcid really helps to treat COVID-19?

Recalls & Warnings

November 21, 2022

6 Supplement Companies Warned by FDA for Making Cholesterol Claims

On May 4, 2022, the FDA issued warning letters to six supplement companies following review that found statements made on company websites and Walmart purchase pages suggesting the products could lower cholesterol to be drug claims, which are not permitted for dietary supplements.

News Release

November 12, 2019

Best Magnesium Supplements Revealed by ConsumerLab

White Plains, New York, November 12, 2019 — Many people do not get adequate amounts of magnesium from their diets, or may have lower levels of this essential mineral due to certain medical conditions or the use of common medications such as Nexium and Prilosec.

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.

News Release

April 25, 2019

Best Coconut Water? ConsumerLab Tests Popular Products, Reveals Top Pick

White Plains, New York, April 25, 2019 — Coconut water is often promoted as a healthy way to stay hydrated and a natural alternative to sports drinks.

CL Answer

What are the side effects of melatonin supplements?

Melatonin side effects - are there any? Read about drowsiness, dizziness, headache, nausea, mood & behavior, the risk of fractures and others. ConsumerLab.com's answer explains.

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.

CL Answer

What is Prelief? Does it really help for heartburn and/or bladder pain from acidic foods?

Prelief information, including what it has been claimed to do (such as helping with painful bladder, frequent urination, heartburn or indigestion from acidic foods), clinical evidence, and safety.

CL Answer

Which supplements help with Raynaud's phenomenon?

Raynaud's phenomenon may be helped by some supplements. Learn more about fish oil, Gingko biloba, and ginseng.

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?

CL Answer

Are cranberry supplements helpful for men? Can they help with symptoms of an enlarged prostate, prostatitis, or urinary tract infections?

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

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.

Product Review

Lycopene Supplements Review

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

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.

News Release

November 01, 2017

Gummies Are Most Likely to Fail Testing in Review of Multivitamins -- Best and Worst Multivitamins Identified by ConsumerLab Testing

White Plains, New York, November 1, 2017 — Multivitamin/multimineral supplements are among the most popular supplements, with many consumers relying on them to provide nutrients they may not get from their diets. However, ConsumerLab.

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

January 26, 2023

FDA Warns Seller of Canary Seed Omega-3

On November 16, 2022, the FDA issued a warning letter to Evimeria El Aztecano, Inc. following review of the company’s Yerbas Finas Leche de Alpiste con Guanabana y Omega-3 product labeling, which found the product contained less magnesium and potassium than claimed on the label.

News Release

June 21, 2017

Which Magnesium Is Best? ConsumerLab.com Tests Popular Brands and Reveals Its Top Pick

White Plains, New York, June 21, 2017 — Magnesium supplements are among the most popular supplements, but do you need to take one and, if so, which is best? To find out, ConsumerLab.com reviewed the clinical evidence, and purchased and tested popular magnesium supplements sold in the U.S.

Product Review

Maca Supplements Review

Choose the Best Maca Supplement. Make Sure Your Maca Supplement Isn't Contaminated With Lead.

Product Review

Astaxanthin Supplements Review

See Which Astaxanthin Products Passed or Failed CL's Tests

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 ...

CL Answer

Are supplements such as Thyroid Care Plus helpful for hypothyroidism? Can supplements worsen thyroid function? And what is nascent iodine?

Learn about supplement ingredients such as iodine, selenium, zinc, acetyl-l-carnitine, ashwagandha and guggul used for thyroid conditions and find out if they are beneficial. Also learn why ingredients such as alpha-lipoic acid, soy, resveratrol, quercetin may impair thyroid function.

CL Answer

How do the Beyond Burger, the Impossible Burger, and a beef burger compare in terms of vitamins and minerals, and which is best?

Read our comparison of the Beyond Burger and the Impossible Burger, plant-based, meat alternative burgers. Compare nutrition, vitamins and minerals. ConsumerLab.com's answer explains.

CL Answer

I read that turmeric may be a GI irritant. I have GI problems and wonder if I should avoid turmeric and curcumin?

Find out if turmeric/curcumin supplements can cause gastrointestinal irritability.

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

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

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 ...

News Release

June 01, 2017

Best Vitamin K Supplement? ConsumerLab.com Tests Popular Products and Reveals Its Top Picks

White Plains, New York, June 1, 2017 — Vitamin K plays an important role in proper blood clotting as well as with calcium utilization in bones and the cardiovascular system, but do most people need a vitamin K supplement? And do products on the market contain what's claimed on their labels? ...

News Release

May 26, 2017

ConsumerLab.com Tests Reveal the Best Calcium Supplements

White Plains, New York, May 26, 2017 — Most people know that calcium is important for building and maintaining strong bones, but with so many different forms, dosages and ingredient combinations available on the market, choosing a calcium supplement can be difficult. To help, ConsumerLab.

Product Review

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

Find the Best Vision Supplement Based Our Tests

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.

News Release

May 17, 2017

Best Vitamin D? ConsumerLab.com Tests Popular Vitamin D Supplements and Reveals Its Top Picks

White Plains, New York, May 17, 2017 — Vitamin D is currently the most popular dietary supplement among people who regularly use supplements according to a recent survey by ConsumerLab.com.

Recalls & Warnings

July 16, 2019

FDA Warns Seller of Magnesium and CBD

On July 9, 2019, the FDA issued a warning letter to Ceba-Tek, Inc.

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.

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

November 09, 2023

InnoMark Warned for Manufacturing & Misbranding Violations

On September 1, 2023, the FDA issued a Warning Letter to InnoMark, Inc.

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.

Recalls & Warnings

August 25, 2022

Oregon’s Wild Harvest Warned by FDA for Manufacturing Violations

On July 8, 2022, the FDA issued a warning letter to Oregon’s Wild Harvest, Inc.

Recalls & Warnings

May 05, 2022

Seller of CBD Tinctures, Creams & Pet Products Promoted for Pain, Cancer & More Warned by FDA

On February 11, 2022, the FDA issued a warning letter to Rena’s Organic following a review of the company’s social media and website, which found statements about the company’s 300 mg CBD Full Spectrum Oil Cannabinoid Tincture, 600 mg CBD Full Spectrum Oil Cannabinoid ...

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

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

February 06, 2023

Recalled Eye Drops Linked to Vision Loss and One Death

On February 2, 2023, Global Pharma Healthcare issued a nationwide recall of its Artificial Tears Lubricant Eye Drops due to potential contamination with bacteria that can cause serious infection, blindness, and death.

News Release

November 15, 2016

ConsumerLab.com Finds Arsenic in Testing of Potassium Supplements -- Safer Choices Identified. Many Americans May Need More Potassium

White Plains, New York, November 15, 2016 — During a recent analysis of potassium supplements sold in the U.S. and Canada, ConsumerLab.com discovered significant contamination with the toxic heavy metal arsenic in pills from one brand.

CL Answer

Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits

ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon, Walmart.com, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.

CL Answer

Is drinking coffee good or bad for heart health?

Learn more about coffee and caffeine, its safety, if it's good for you, how much coffee is too much and its impact on your heart.

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

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.

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.

Recalls & Warnings

August 16, 2023

FDA Warns Sun Ten Laboratories for Manufacturing Violations, Drug Claims

On April 7, 2023, the FDA issued a warning letter to STPCA Inc. dba Sun Ten Laboratories because products were found to be adulterated because they were prepared, packed, or held under conditions that do not meet Current Good Manufacturing Practices (CGMP).

Recalls & Warnings

September 21, 2023

Moor Herbs, Inc Warned for Manufacturing Violations, Drug Claims

On August 1, 2023, the FDA issued a Warning Letter to Moor Herbs, Inc.

Recalls & Warnings

November 30, 2023

Discover Health, LLC Warned for Promoting CBD Products for Cancer, Epilepsy, & More

On November 16, 2023, the FDA issued a Warning Letter to Discover Health, LLC d/b/a Discover CBD and Strain Snobs following a review of the company’s websites that found statements about the company’s Active CBD Oil – Full Spectrum Distillate Cartridge, Active CBD Oil – ...

Recalls & Warnings

November 02, 2019

Brain Supplement Claims to Treat Brain Injuries, Alzheimer's Are Deceptive, Says FTC

On November 1, 2019 the FTC filed a lawsuit against Neora LLC (formerly Nerium International) for making false claims that the supplement Neora EHT (formerly called Nerium EHT) can treat concussions and chronic traumatic encephalopathy caused by repetitive brain trauma, Alzheimer's ...

Recalls & Warnings

October 29, 2019

Publisher Sued for Promoting "Phony Diabetes Cure"

On October 24, 2019 the FTC filed a lawsuit against the publisher of books, newsletters, and other publications aimed at seniors that falsely promise to cure type 2 diabetes.

Recalls & Warnings

May 09, 2022

FDA Warns Five Companies for Selling CBD Supplements, Gummies and Creams With Delta-8 THC

On May 4th, 2022, the FDA issued warning letters to five companies for selling CBD and other products labeled as containing delta-8 tetrahydrocannabinol (delta-8 THC).

Recalls & Warnings

November 23, 2022

CBD Not Permitted in Gummies, Candies, Cookies, Candy, or Pet Treats, Says FDA

On November 16, 2022, the FDA issued warning letters to five companies for selling products such as gummies, tea, cookies, lollipops, fruit snacks, hard candies, and pet treats containing cannabidiol (CBD) and/or delta-8 tetrahydrocannabinol (delta-8 THC) as conventional food products.

News Release

June 10, 2015

ConsumerLab.com Tests Reveal Best and Worst Magnesium Supplements

White Plains, New York, June 10, 2015 — Magnesium supplements have become extremely popular, surpassing even calcium among frequent users of supplements. However, recent tests by ConsumerLab.

News Release

April 28, 2015

Best Supplements for Bone Health? ConsumerLab.com Finds Products with Multiple Ingredients More Likely to Contain Wrong Amounts

White Plains, New York, April 28, 2015 — Vitamin D and calcium each play a crucial role in bone health and are among the most popular supplement ingredients in the U.S., but recent ConsumerLab.

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, ...

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 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

August 21, 2013

Labels on Potassium Supplements May Confuse, But Product Quality is High According to ConsumerLab.com

White Plains, New York August 21, 2013 — How much potassium would you expect from a supplement called "Potassium Gluconate 595 mg"? The correct answer is just 99 mg, as ConsumerLab.com explains in its new Potassium Supplements Review, published online today.

News Release

February 11, 2013

ConsumerLab.com Reports Problems with Some Vitamin D and Calcium Supplements -- Wrong Amounts of Vitamin D, Pills Which Don’t Break Apart, and Lead Contamination Found

White Plains, New York, February 11, 2012 — Vitamin D and calcium are among the most popular supplement ingredients in the U.S., but recent tests by ConsumerLab.com show problems with 4 out of 25 products which contain these ingredients.

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.

Recalls & Warnings

August 06, 2014

Seller of Mineral and Joint Supplements Warned for Manufacturing Violations and Drug Claims

On July 25, 2014, the FDA issued a warning letter to Mezotrace Corporation following a facility inspection which found the company's products, including Calcium/Magnesium Natural Minerals & Trace Elements, Calcium/Magnesium Natural Minerals & Trace Elements with Vitamin D, and Calcium/Magnesium ...

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

June 05, 2020

Seller of CBD, Sleep Aids, and Cold & Flu Products Warned for Manufacturing Violations

On April 28, 2020, the FDA issued a warning letter to The Dragontree Apothecary LLC, which found the company's Sleep Support, Anxiety Relief, Cold & Flu Relief, and Inflammation Relief to be adulterated because they were prepared, packed, or held under conditions that ...

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

March 13, 2018

FDA Warns Seller of Milk Thistle, Chromium, Joint Supplements & More for Manufacturing Violations

On March 9, 2018, the FDA issued a warning letter to Carol Bond Health Foods following a facility inspection which found a number of the company's products, including Dolomite, Lipo Fat Fighter, ThistleX, Injuv, and Vinpocentine, to be ...

Recalls & Warnings

July 11, 2017

FDA Warns Dr. Carolyn Dean of Drug Claims Made for Magnesium, Calcium & Other Mineral Supplements

On June 27, 2017, the FDA issued a Warning Letter to Dr. Carolyn Dean of New Capstone, Inc.

Recalls & Warnings

November 12, 2017

Weight Loss and Cleanse Supplements Contain Adulterated and Improperly Labeled Ingredients, FDA Warns

On November 2, 2017, the FDA issued a warning letter to Create-A-Pack Foods, Inc.

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).

Recalls & Warnings

October 22, 2019

Company Marketing CBD for Use in Infants and Children Gets Strong Warning

On October 10, 2019, the FDA and FTC issued a joint warning letter to Rooted Apothecary LLC for "illegally selling unapproved products containing cannabidiol (CBD) online with unsubstantiated claims" including that the products could treat teething pain and ear aches in infants, autism, ...

Recalls & Warnings

July 23, 2019

FDA Warns Seller of CBD Lotions, Patches, Tinctures and Pet Products

On July 22, 2019, the FDA issued a warning letter to Curaleaf, Inc.

News Release

May 30, 2012

ConsumerLab.com Identifies Best and Worst Magnesium Supplements Based on Tests and Comparisons

White Plains, New York — MAY 30, 2012 — Magnesium supplements are among the most popular supplements in the U.S. But which magnesium supplements are best? ConsumerLab.

News Release

August 04, 2011

Some coconut waters don't deliver on promises according to ConsumerLab.com

White Plains, New York — August 4, 2011 — Coconut water—the natural juice from green coconuts— is often touted as a natural alternative to sports drinks. But does it really deliver? "It depends on the brand," says ConsumerLab.com President, Tod Cooperman, M.D. ConsumerLab.

News Release

April 26, 2011

Problems discovered with eight vitamin D supplements in study by ConsumerLab.com -- Incorrect amounts of vitamins, lead contamination, and labeling infractions identified.

White Plains, New York — April 26, 2010 — Among 28 vitamin D supplements recently selected for independent testing, problems were found with 8 products, 29% of those reviewed, according to ConsumerLab.com.

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.

Recalls & Warnings

June 05, 2018

FDA Warns Seller of Colloidal Silver

On May 17, 2018, the FDA issued a warning letter to Silver Armor, Inc.

Recalls & Warnings

March 26, 2019

Seller of NeuSilver Colloidal Silver for Adults, Children and Pets Warned by FDA

On February 19, 2019, the FDA issued a warning letter to iMedDo, Inc., following a review of the company's website, http://www.imeddo.

News Release

January 25, 2011

ConsumerLab.com evaluates quality of potassium supplements and identifies those offering best value

WHITE PLAINS, NEW YORK — JANUARY 25, 2011 — A new report on the quality of potassium supplements was released by ConsumerLab.com today. In contrast to its last report on potassium supplements, ConsumerLab.

News Release

May 19, 2009

Review of Magnesium Supplements by ConsumerLab.com Shows One-Quarter Fail Quality Tests

WHITE PLAINS, NEW YORK — MAY 19, 2009 — ConsumerLab.com reported today that among twelve magnesium supplements selected for testing, only nine met quality standards. One supplement contained only 45.

News Release

April 28, 2009

40% of Green Tea and Selenium Products Fail ConsumerLab.com Review of Cancer-Prevention Supplements; Lycopene Supplements Pass

WHITE PLAINS, NEW YORK — APRIL 28, 2009 — ConsumerLab.com announced results today of its Product Review of Supplements for Cancer Prevention.  Among the products that ConsumerLab.com selected for testing, quality problems were found with two out of five green tea supplements.

News Release

March 31, 2009

ConsumerLab.com Warns of Problems with Multivitamins and Vitamin Water -- Defects Found in Over 30% of Supplements Selected for Testing; Several Popular Children's Multis Exceed Tolerable Upper Intake Levels

WHITE PLAINS, NEW YORK — MARCH 31, 2009 — Over 30% of multivitamins recently selected for testing by ConsumerLab.com were found to contain significantly more or less ingredient than claimed or were contaminated with lead.

News Release

October 30, 2007

Recently tested magnesium supplements free of lead, but one product missing most of its ingredient according to ConsumerLab.com — First Major Product Review of Potential "Life-Extending" Ingredient

WHITE PLAINS, NEW YORK — OCTOBER 30, 2007 — ConsumerLab.com reported today that its tests of magnesium supplements revealed one product to contain only 46.4% of its claimed amount of the essential mineral, despite boasting a "GMP" (Good Manufacturing Practices) seal on its label.

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

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.

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

February 13, 2013

FDA Warns Maker of Weight Loss and Whey Protein Supplements For Manufacturing Violations and Misbranding

January 25, 2013, the FDA issued a warning letter to dietary supplement manufacturer SciLabs Nutraceuticals, following a facility inspection which found the company's dietary supplements and supplement ingredients, including N-Large 2, Flo-Gard AB, Nitrogen Glutamine capsules, Nutritech nutritional ...

Recalls & Warnings

May 23, 2015

Seller of Magnesium, Calcium, Silver and More Warned for Manufacturing Violations, Drug Claims

On May 8, 2015, the FDA issued a warning letter to Pick and Pay, Inc.

Recalls & Warnings

January 17, 2015

Maker of Magnesium and Potassium Supplements Warned for Manufacturing Violations

On December 23, 2014, the FDA issued a warning letter to Nutri Spec, Inc.

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

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. 

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

April 09, 2019

Dangerous Levels of Lead and Nickel Found in Kratom Products

On April 3, 2019, the FDA released the results of its tests that found dangerous levels of lead and nickel in certain kratom products. The agency tested 30 products sold on websites such as krakenkratom.com and by retailers such as Gaia Ethnobotanicals, Sunstone Organics LLC and Happy Hippo LLC.

Recalls & Warnings

November 30, 2013

"Diuretic" Weight Loss Supplement Recalled

On November 29, 2013, IQ Formulations issued a recall of all lots of diuretic weight loss supplement HYDRAVAX because one lot of the supplement was found to contain an undeclared prescription diuretic drug.

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

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

September 18, 2012

Men’s Sexual Enhancement Supplement Containing Prescription Drug Recalled

On September 12, 2012, Body Basics Inc. issued a voluntary nationwide recall of ACTRA-Sx 500 Dietary Supplement Capsules after independent laboratory testing confirmed the supplement contains the prescription drug sildenafil citrate.

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

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

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

December 23, 2017

Seller of Meal Replacement, Protein Drinks, Cranberry and More Warned for Manufacturing Violations

On July 6, 2017, the FDA issued a warning letter to Professional Botanicals, Inc.

Recalls & Warnings

December 20, 2017

Seller of Supplements for Pain and Allergies Warned for Manufacturing Violations, Drug Claims

On December 13, 2017, the FDA issued a warning letter to GnuPharma Corporation, following a facility inspection which found a number of the company's products, including Relief capsules, Foundation capsules, Aller-geez capsules, Fit capsules, Aller-Geez Tea, Foundation herbal tea and ...

Recalls & Warnings

September 26, 2017

FDA Warns Seller of DHEA, Creatine, Chromium & More for Manufacturing Violations, Drug Claims

On August 25, 2017, the FDA issued a warning letter to Mega-Pro Nutrition, Inc., following inspections of the facility and website www.mega-pro.

Recalls & Warnings

September 23, 2014

Maker of Joint and Weight Products Warned for Hidden Drugs, Manufacturing Violations

On September 15, 2014, the FDA issued a warning letter to West Coast Laboratories, Inc., because the company's joint health supplements, Super ArthGold and Pro ArthMax, were found to contain hidden drugs.

Recalls & Warnings

June 22, 2011

Recall of Calcium & Magnesium Softgels Containing Excessive and Potentially Toxic Amounts of Vitamin D

On or about June 7, 2011, NOW Foods announced the following recall to retailers. ConsumerLab.com was subsequently made aware of the recall by a ConsumerLab.com member.

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

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

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 07, 2012

FDA Warns Doctor Promoting Own Supplements Online as Treatments

On April 18, 2012 the U.S. Food and Drug Administration (FDA) sent a Warning Letter to Jacob Teitelbaum, M.D. of Fatigued to Fantastic, LLC regarding the promotion that company's products on its website www.endfatigue.com.

Recalls & Warnings

September 08, 2011

FDA Warns Several Supplement Manufacturers Not Following Good Manufacturing Practices

In recent weeks, the U.S. FDA has sent warning letters to several supplement manufacturers regarding deficiencies identified during audits of their facilities and not adequately corrected. Use the links below to access the Warning Letters on the FDA website.

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 ...

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

September 02, 2016

Maker of Prescription Multi to Pay $15.5 Million to Settle Lawsuit Over Ingredient Claim

Endo Health Solutions Inc. has reportedly agreed to pay $15.5 million to settle a class action lawsuit which alleged its Qualitest Multi-Vitamin with Fluoride Chewable Tablets contained just 44% of the fluoride claimed on the label.

Recalls & Warnings

March 14, 2017

Court Shuts Down Supplement Manufacturer

On March 13, 2017, the U.S. District Court for Colorado ordered dietary supplement manufacturers and distributors  EonNutra LLC, CDSM LLC and HABW LLC, and their owner, Michael Floren, to stop all operations until they come into compliance with federal regulations. 

Recalls & Warnings

February 16, 2017

U.S. Department of Justice Files Permanent Injunction Against Supplement Manufacturer

On February 16, 2017, the United States Department of Justice filed a complaint against Pick and Pay, Inc.

Recalls & Warnings

January 21, 2015

Supplement Maker Ordered to Stop Selling Products

On January 15, 2015, a federal judge ordered a permanent injunction against dietary supplement manufacturer Health One Pharmaceuticals, Inc. which requires the company to stop manufacturing and selling dietary supplements.

Recalls & Warnings

August 23, 2015

Maker of Herbal Supplements Sold on eBay, Amazon and Other Websites Shut Down

On August 17, 2015, a federal court ordered a permanent injunction against dietary supplement company Iowa Select Herbs LLC for unlawfully manufacturing and distributing unapproved new drugs and misbranded drugs and adulterated and misbranded dietary supplements.

Recalls & Warnings

August 11, 2015

Company Ordered to Stop Making and Selling Supplements

On August 4, 2015, a federal court ordered a permanent injunction against dietary supplement company Atrium Inc., and two companies under the same ownerhship, Aspen Group Inc., Nutri-Pak of Wisconsin Inc.

Recalls & Warnings

February 19, 2014

Seller of Sexual Enhancement Supplements Warned For Manufacturing Violations

On February 11, 2014, the FDA issued a warning letter to Maximus Niterider International Group, Inc.

Recalls & Warnings

May 07, 2013

FDA Warns Consumers Of Three More Sexual Enhancement Supplements Containing Undeclared Drugs

On May 7, 2013, the FDA issued a warning to consumers, urging them not to purchase or use three sexual enhancement products which were found to contain undeclared drugs.

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

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

August 09, 2012

Makers of Mineral Water Containing Lithium Warned

On July 20, 2012, the FDA issued a warning letter to Lithia Mineral Water, Inc. declaring Lithia mineral water product to be an approved drug following a 2011 facility inspection.

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.

News Release

October 12, 2007

ConsumerLab.com finds generic antidepressant behaves differently from original drug. May explain complaints by patients. — Generic drug equality questioned

WHITE PLAINS, NEW YORK AND DURHAM, NORTH CARLOLINA — OCTOBER 12, 2007 — ConsumerLab.

News Release

September 10, 2007

Tests of B-vitamins by ConsumerLab.com finds several short on folic acid — New report covers B-complexes, thiamin, niacin, B-6, B-12, biotin and folic acid supplements

WHITE PLAINS, NEW YORK — SEPTEMBER 10, 2007 — Half of the B-complex supplements recently selected by ConsumerLab.com for testing were found to lack the total claimed amounts of folic acid, an essential nutrient also known as vitamin B-9.

News Release

August 20, 2007

ConsumerLab tests products in booming nutrition drink market — most deliver what's promised but extra cholesterol found in some — New report covers drinks and powders for endurance/recovery, body building, meal-replacement and dieting

WHITE PLAINS, NEW YORK — AUGUST 20, 2007 — A new report from ConsumerLab.com finds most nutrition powders, shakes and drinks meet their nutrient claims, but three products — two sports drinks and a meal supplement — contained more cholesterol than claimed.

News Release

January 19, 2007

Consumers warned of problems with multivitamins — ConsumerLab.com uncovers defects in over half of products tested

WHITE PLAINS, NEW YORK — JANUARY 19, 2007 — Fifty-two percent of multivitamins recently selected for testing by ConsumerLab.com were found to be contaminated with lead, unable properly break apart, or to contain significantly more or less ingredient than claimed.

News Release

June 15, 2005

Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available.

WHITE PLAINS, NY — JUNE 15, 2005 — ConsumerLab.com has released its latest report on the quality of magnesium supplements sold in the U.S. In addition to being an essential mineral, magnesium may help prevent migraine headaches, menstrual pain, PMS, and leg cramps during pregnancy.

Recalls & Warnings

November 02, 2012

Manufacturer of Prostate, Inflammation and Cholesterol Supplements Warned For Drug Claims

On October 15, 2012, the FDA issued a warning letter to Ortho Molecular Products, Inc. for making drug claims about the following dietary supplements: Candicid Forte, Inflamma-bLOX, Lipitrol, Mucosagen, Prostatrol Forte, Resvoxitrol, Paracid Forte, VascuPak HTN and Lithium Orotate.

Recalls & Warnings

June 11, 2015

FDA Warns Maker of Fruit Energy Drinks for Drug Claims

On May 19, 2015, the FDA issued a warning letter to CK Management, Inc. following a facility inspection which found statements made on product labels and websites about Whole5, Fruit of the Spirit and ViaViente "whole food" fruit puree energy drinks to be drug claims.

News Release

April 27, 2005

ConsumerLab.com finds quality of most nutrition powders and drinks high, but identifies five protein powders with excess sodium or cholesterol — Report Now Available Online

WHITE PLAINS, NY — APRIL 27, 2005 — ConsumerLab.com has released its latest report on the quality of nutrition powders, shakes and drinks. These products are used for general nutrition, dieting, and meal-replacement and are frequently used by athletes and bodybuilders.

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

July 16, 2002

ConsumerLab.com finds lead contamination remains a problem for certain mineral supplements — Lead found in iron, magnesium and, most recently, potassium pills

WHITE PLAINS, NY — July 16, 2002 — ConsumerLab.com announced today that its testing has shown that approximately 5% to 10 % of certain mineral supplements are contaminated with lead. The findings are based on ConsumerLab.

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

May 15, 2002

ConsumerLab.com lists magnesium products that passed testing — Some products fail due to excess magnesium and lead contamination

WHITE PLAINS, NY — May 14, 2002 — ConsumerLab.com today released results of its Product Review of Magnesium Supplements. Seventeen of the nineteen products tested by ConsumerLab.com passed the review. Among the products that failed, one contained nearly 50% more magnesium than claimed.

News Release

April 16, 2002

ConsumerLab.com finds "Breast Enhancement" pills lack evidence of efficacy

WHITE PLAINS, NY — April 16, 2002 — ConsumerLab.com announced today that it found no hard evidence to suggest that current dietary supplements marketed for breast enhancement are effective.

News Release

April 03, 2002

More than one in five weight loss, slimming and/or diabetes supplements fail ConsumerLab.com evaluation — Problems found in chromium and pyruvate products; CLA products fine

WHITE PLAINS, NY — April 3, 2002 — ConsumerLab.com announced today that more than one in five products failed its recent Product Review of Weight Loss, Slimming and Diabetes-Management Supplements.