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CL Answer

Do any supplements help prevent or treat a cold?

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

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

Product Review

Echinacea Supplements Review

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

Echinacea supplements reviewed by ConsumerLab.com

CL Answer

What are the health benefits of andrographis? Can it treat colds, help with joint pain, or other conditions, and is it safe?

Learn about the health benefits of andrographis, whether it can help relieve cold symptoms, reduce pain and stiffness of osteoarthritis or rheumatoid arthritis, decrease symptoms of ulcerative colitis, or slow the growth of cancer. See the clinical evidence for the branded andrographis extract ParActin. Plus, learn about dosage, side effects and drug interactions with andrographis.

Andrographis

CL Answer

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

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

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

CL Answer

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

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

A bottle of Z-Stack capsules

CL Answer

Do any supplements help for flu?

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

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

CL Answer

Does CBD help fight colds or the flu?

Find out if CBD (cannabidiol) can help to fight colds or the flu. ConsumerLab.com's answer explains.

CBD for Colds or the Flu

Product Review

Elderberry Supplements Review

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

Elderberry Supplements Reviewed by ConsumerLab.com

Product Review

Zinc Supplements and Lozenges Review

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

Zinc Supplements and Lozenges Reviewed by ConsumerLab.com

CL Answer

What is monolaurin? Can it really prevent colds, cold sores, or other infections?

Lauricidin (monolaurin) information for preventing colds, immune system function, and safety.

Lauricidin (monolaurin) for Colds -- jar of Lauricidin

CL Answer

Is it okay to take a zinc supplement while I am on an antibiotic for a respiratory infection?

Does zinc interfere with the absorption of antibiotics? Learn more about this and other effects in the body.

Product Review

Probiotic Supplements Review (Including Pet Probiotics)

Find the Best Probiotic Supplement. CL Tests Reveal the Best Probiotic Supplements for You (and your pet)!

Probiotic Supplements Reviewed by ConsumerLab.com

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.

Supplements for Raynaud's Phenomenon -- woman standing outside in snow, with cold, red hands

Clinical Update

10/21/2012

Can Echinacea Prevent Colds?

Although the evidence behind echinacea has been mixed, a new study -- the largest to date -- found that taking a particular type of echinacea supplement throughout cold season reduced cold "events" (catching colds and days spent with colds) by 26%. See the update to the Echinacea Supplements Review for details about this particular supplement, including the special way it is taken. More >>

Clinical Update

2/27/2011

Zinc for Colds -- Be Careful

The use of zinc for colds has been in the news lately due to a study indicating benefit. Some of the coverage, however, might suggest the wrong conclusion. Be aware that taking zinc pills won't help with a cold; only forms that allow zinc to act directly in the throat or nose can help — and only when taken appropriately. See the Zinc Product Review for details on formulations and dosing that can help with colds. More >>

CL Answer

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

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

What is Lactoferrin? -- lactoferrin capsules and bottle

CL Answer

An online supplement seller suggests I pay $10 extra to ship my order of bottled fish oil with freezer packs using priority mail. Is this necessary?

Find out if fish oil supplements need to be shipped with freezer packs to be kept fresh, plus other information about shipping and storing supplements. ConsumerLab.com's answer explains.

Box of Supplements

Clinical Update

1/02/2011

Does Echinacea Help Treat a Cold?

Very little, it seems. A new large, well-controlled study of a commercially sold echinacea supplement failed to show a substantial benefit when given shortly after the first sign of a cold. Evidence tends to be better (although not robust) for echinacea used to prevent a cold before it begins, as opposed to once symptoms start. Find out more (including the product that was tested) in the Echinacea Supplements Review.  More >>

Product Review

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

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

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

CL Answer

Are lozenges and sublingual pills considered dietary supplements?

Learn more about lozenges and sublingual pills (such as echinacea, zinc and B12) including safety warnings.

Person in Yellow Holding Blister Pack and Red Lozenge

CL Answer

The vision supplement I take is based on the AREDS2 formula, but it contains a lot of zinc -- 80 mg in the recommended daily serving. Is it necessary, and safe, to take this much zinc every day?

AREDS information on the safety of supplements containing high levels of zinc, including vision supplements.

Elderly Man Reading Supplement Bottle

Product Review

Lysine Supplements Review

Choose the Best Lysine Supplement. CL Tests Reveal Which Lysine Supplements Provide the Best Quality and Value.

CL Answer

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

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

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

Product Review

Garlic Supplements Review

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

Garlic Supplements Reviewed by ConsumerLab.com

Product Review

Avocado Oil Review

Find the Best Avocado Oil for Purity, Freshness and Taste. Some Others May Include Rotten Avocado or Other Oils.

Avocado oil reviewed by ConsumerLab.com

CL Answer

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

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

Woman with Cold Holding Pill Bottle

CL Answer

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.

Are Broken Tablets Safe? -- broken tablets on table

CL Answer

Can lysine, vitamin B-12, or other vitamins or minerals help prevent or reduce canker sores?

Lysine, B12, zinc and other vitamins and minerals for canker sores. Find out what supplements can help prevent or reduce canker sores.

Lysine, Vitamins & Minerals for Canker Sores -- Man with canker sore

Product Review

Water Filter Pitchers Review

Find the Best Water Filter Pitcher. They Look Similar But Are Very Different. Learn Which Passed or Failed Our Tests -- and Which Is Our Top Pick!

Water Filters Reviewed by ConsumerLab.com

Clinical Update

10/24/2019

Caution With Elderberry

Although rare, a case of acute pancreatitis was reported after the use of a popular elderberry extract supplement. Get the details in our updated answer to the question: Do any supplements help prevent or treat a cold?

Clinical Update

10/26/2019

Pycnogenol for Raynaud's?

A new study investigated whether Pycnogenol can help treat Raynaud’s phenomenon, a condition in which hands become painful and discolored when exposed to cold temperatures. Find out if it helped in the update to the question: What is Pycnogenol and does it work?

Clinical Update

8/23/2022

Swallowing Pills

Does cold or warm liquid make swallowing pills easier? Find out in our updated article 6 Tips to Avoid Getting a Pill Stuck in Your Throat.

Clinical Update

3/11/2022

Olive Leaf Extract for Herpes?

Does olive leaf extract taken orally or applied topically help heal cold sores or genital herpes? Find out in our article about the Health Benefits of Olive Leaf Extract.

CL Answer

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

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

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

Clinical Update

10/07/2012

Does Vitamin D Prevent Colds?

A recent study found vitamin D supplementation did not reduce the number or severity of colds, but a closer look suggests that it can, depending on your vitamin D level. Get the details and our ratings of 51 vitamin D supplements in the updated Vitamin D Supplements Review >>

Clinical Update

5/04/2017

Zinc for Shortening Colds

Two different forms of zinc were found to work equally as well for reducing the duration of colds -- by as much as three days. For details, see the "What It Does" section of the Zinc Supplements and Lozenges Review >>

Clinical Update

8/03/2018

Vitamin C for Colds?

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

Clinical Update

9/17/2020

Does Ginseng Prevent Colds?

Ginseng may increase levels of certain immune cells in the body, but does this result in fewer colds? See what a recent study showed in the What It Does section of the Ginseng Supplements Review.

Clinical Update

12/20/2020

Probiotic to Prevent Colds?

Can taking a probiotic prevent colds or reduce cold symptoms? See what a new study found in the What It Does section of our Probiotic Supplements Review. Also, see our Top Picks for probiotics.

Clinical Update

1/15/2021

Vitamin D for Colds and Flu?

Does monthly high-dose vitamin D help prevent colds and flu or lessen symptoms in older people? Find out what a recent study showed in the What It Does section of our Vitamin D Supplement Review. Also, see our Top Pick for vitamin D.

Clinical Update

12/07/2021

Probiotic for Colds?

Can taking a probiotic help prevent colds? See what a recent study found in the Cold and acute respiratory infections section of our Probiotic Supplements Review.

See information about other supplements in our answer to the question: Do any supplements help prevent or treat a cold?

Product Review

Coconut Oil and Medium Chain Triglycerides (MCT) Oil Review – Semi-Solid and Liquid Oils & Supplements

Find the Best Coconut Oil and MCT Oil. See How These Oils Compare on Medium Chain Triglycerides (MCTs), Quality, and Value.

Coconut and MCT Oils Reviewed by ConsumerLab.com

CL Answer

Once I've taken probiotics for a few months, will the positive bacteria remain in my system, or do I have to keep taking them?

Find out how long you should take probiotics through understanding how long the positive bacteria remain in the system.

Probiotics

CL Answer

Do vitamins, minerals and nutritional supplements lose effectiveness with exposure to high temperatures and is it safe to order supplements by mail in the summer?

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

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

Product Review

Extra Virgin Olive Oil Review

Most Failed to Be Approved. Find the Best Extra Virgin Olive Oil and Avoid Problems.

Extra virgin olive oils reviewed by ConsumerLab.com

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

CL Answer

Is it safe to consume fish oil as a long-term food supplement?

Learn more about fish oil supplement safety including long-term use, side effects, and more.

Fish Oil

CL Answer

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

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

CL Answer

I am curious why some probiotics do not require refrigeration even though they contain some of the same bacteria in probiotics that require refrigeration? Which probiotics need to be refrigerated?

Refrigerating certain probiotic pills and other probiotic supplements is important. Get tips on how to store probiotics properly.

Do probiotic pills require refrigeration? -- Probiotic supplement

CL Answer

Have you heard of the probiotic, Keybiotics? Does it do what it claims, and is it worth the money they charge?

Whole Body Research Keybiotics probiotic information, including its ingredients and possible cheaper alternatives.

Probiotics

CL Answer

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

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

Warfarin Supplement Interactions -- bottle of pink warfarin tablets

Clinical Update

11/08/2015

Too Much Vitamin D Can Increase Colds

A recent study in people with asthma found that giving high-dose vitamin D increased the risk of developing a cold among those who achieved higher levels of vitamin D or were African-American. Nearly half of those in the study were not vitamin D deficient to start. In contrast, studies have found that giving moderate doses of vitamin D to people who are vitamin D deficient decreases the risk of colds. The point, in our opinion: Maintain an adequate, but not excessive, level of vitamin D. For details (including dosage, levels, and our tests of products) see the Vitamin D Supplements Review >>

CL Answer

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

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

Product Review

Vitamin C Supplements Review

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

Vitamin C Supplements Tested by ConsumerLab.com

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.

CL Answer

I've tried a number of fish oil supplements, all of which make me nauseous. What is the best non-fish alternative? I am primarily interested in getting EPA.

Learn how to reduce fish oil side effects such as nausea and upset stomach.

Disgusted Woman Holding Fish Oil

CL Answer

What are phytoceramides? Do phytoceramide supplements really work to improve aging skin?

Phytoceramide supplement information, including what they are, what they claim to do, and if they have anti-aging effects.

Phytoceramides for Aging Skin? -- woman looking at skin up close in mirror

CL Answer

I drink organic milk with added DHA Omega-3, but it is expensive. Is it worth paying extra for the added DHA?

Find out if drinking organic milk with added DHA omega-3, such as Horizon Organic Milk, is worth paying more.

Organic Milk Cartons

CL Answer

How do I find the best quality olive oil and what are the health benefits?

Health Benefits of olive oil, including heart benefits, anti-inflammatory effects. Plus, how to choose a quality olive oil and cook with olive oil

Health Benefits of Olive Oil -- Pouring Olive Oil Into a Bowl

CL Answer

Can drinking coffee weaken bones or make arthritis worse?

Learn about the effects of coffee intake on bone mineral density, risk of osteoporosis, and risk of fracture. Also, find out if drinking coffee might increase the risk of arthritis or worsen symptoms.

Product Review

Protein Powders and Shakes Review

Find Out Which Protein Powders Passed or Failed Our Tests

CL Answer

What is Pycnogenol and does it work?

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

Pycnogenol Health Benefits -- woman with leg pain

Product Review

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

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

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

CL Answer

Is Esberitox effective for treating a cold?

Esberitox is promoted to boos the immune system, but can it really shorten the effects of the common cold?

Esberitox Packaged

CL Answer

What are trace minerals and do I need them?

Trace minerals include boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, zinc, and others. Find out what they do, how much of each trace mineral you should be getting, and who's most likely to be deficient in these minerals.

Trace Minerals - What are they and do you need them?

CL Answer

Does heat kill coronavirus (COVID-19)? Can it disinfect face masks and packages?

Find out if heat kills the coronavirus SARS-CoV-2 that causes COVID-19 infection. Learn what temperature kills the coronavirus and more. ConsumerLab explains.

Does Heat Kill Coronavirus? -- Women Receiving Food Delivery

Clinical Update

8/07/2011

DHA in Pregnancy

The omega-3 fatty acid, DHA, is known to be important to fetal development and is recommended for pregnant woman. A new study suggests that DHA during pregnancy may reduce early colds in some infants. An update to the Fish Oil Supplements Review includes the dose and type of DHA used. More >>

Clinical Update

2/16/2017

Vitamin D Reduces Risk of Colds & Flu

A study released today shows that taking vitamin D in a certain way reduces the risk of cold and flu infections by up to 70%. The benefits are greatest for people very deficient in vitamin D. For details, see the "What It Does" section of the Vitamin D Supplements Review (which includes our tests of products) >>

Clinical Update

6/09/2013

Vitamin C: Does It Fight Colds?

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

Clinical Update

10/01/2019

Probiotic for Cold Symptoms and Gas

A study found that a particular probiotic strain reduced symptoms of upper respiratory infections, as well as gas, in children. For details see the Colds and acute respiratory infections section as well as the Bloating, gas, and abdominal pain section of the Probiotic Supplements Review. Also see our Top Picks for probiotics and kombucha.

Clinical Update

1/28/2020

How to Use Zinc Lozenges for Colds

Zinc lozenges have been shown to reduce cold symptoms, but effectiveness appears to depend on the lozenge formulation and how it is used. Learn more in the What It Does section of the Zinc Supplements and Lozenges Review. Also see our Top Picks for zinc lozenges and pills.

Clinical Update

8/21/2020

Can a Multivitamin Reduce Colds and Flu?

Can regularly taking a multivitamin reduce the chance of getting a cold or flu, or lessen the symptoms and duration of illness among older people? Find out what a recent study showed in the What They Do section of the Multivitamin and Multimineral Supplements Review. Also see our Top Picks among multivitamins for women, men, seniors, children and pets.

Clinical Update

8/28/2020

Honey for Coughs and Colds?

Does honey help reduce cold symptoms and improve coughs? Find out what a recent analysis concluded in our updated answer to the question: Do any supplements help prevent or treat a cold?

Clinical Update

8/06/2014

When Vitamin C May Curb a Cold

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

Clinical Update

3/17/2015

Zinc Lozenges for Colds

A recent review of placebo-controlled studies of zinc lozenges given at the start of a cold shows that they not only shorten the duration of symptoms in the throat, but in the nose and muscles as well. It is critical, however, that the right type of zinc, dose, and dosing schedule be used. Get the details, as well as our reviews of zinc lozenges and supplements, in the Zinc Supplements and Lozenges Review >>

Clinical Update

10/21/2015

Probiotic Shortens Respiratory Infections

Studies have shown probiotics to reduce the duration and severity colds when taken throughout a cold season. A new study in children shows short-term use of a probiotic -- started at the time a household member gets sick -- also significantly reduces the duration and severity of acute respiratory infections. For details, including our tests of probiotic supplements, see the Probiotic Supplements Review >>

Clinical Update

1/28/2022

CBD To Reduce COVID Risk?

Use of a prescription formula was associated with lower risk of COVID-19 infection in a recent analysis, but there are important caveats to this finding. Get the details in the Colds, Flu, and Viral Infections section of our Review.

CL Answer

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

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

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

CL Answer

Do gluten-free diets increase your exposure to toxins like arsenic and mercury?

Find out if your gluten-free diet is increasing your exposure to toxic heavy metals like arsenic and mercury.

Woman with Freshly Baked Cookies

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.

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

Product Review

Fish Oil, Krill Oil, and Algal Oil Omega-3 (DHA & EPA) Supplements Review

Find the Best Fish Oil & Compare to Prescription Omega-3 Drugs. See Our Top Picks Among Fish Oil & Other Omega-3 Supplements for Adults, Children and Pets.

Fish Oil and Other Marine Oil Supplements Reviewed by ConsumerLab.com

Product Review

Apple Cider Vinegar Review – Bottled Liquids and Supplements

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

Apple Cider Vinegar Supplements Reviewed by ConsumerLab.com

Product Review

Ginseng Supplements Review

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

Ginseng Supplements Reviewed by ConsumerLab

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

Product Review

Noni Juice and Supplements Review Article

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

News Release

9/01/2022

Big Differences in Strength of Olive Leaf Supplements in ConsumerLab Tests

  White Plains, New York, September 1, 2022 — Unlike olive fruit and olive oil, olive leaf contains significant concentrations of oleuropein, a potentially beneficial compound. Olive leaf extract supplements are often promoted for lowering blood pressure and blood sugar.

CL Answer

What are the health benefits of serrapeptase?

Serrapeptase is a proteolytic enzyme. Learn more about its health effects, including whether evidence supports its use for pain, inflammation, and heart health.

Serrapeptase for Inflammation and Pain

CL Answer

Which supplements help reduce the risk of colorectal cancer?

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

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

CL Answer

Do any supplements help for restless legs syndrome?

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

Supplements for Restless Legs Syndrome

CL Answer

Is there a risk of liver toxicity with certain supplements?

Find out if there is risk of liver damage from supplements such as green tea, niacin, red yeast rice and vitamin A.

Liver Shape Made From Paper with Pills and Bottle Against Blue Background

CL Answer

A tea called Throat Coat made me lethargic and I was found to have low potassium. Is this a known problem? I was drinking 5 cups a day.

Throat Coat tea information, including licorice root content, potassium loss, and symptoms such as lethargy, increased blood pressure and fluid retention. ConsumerLab.com's answer explains.

Throat Coat Tea and Potassium Loss -- box of Throat Coat tea

CL Answer

Is it safe to fly and how can I avoid getting COVID when flying?

How to fly safely and avoid COVID-19. Tips to help you stay safe and protect others while flying during the COVID-19 pandemic.

Is it safe to fly and how can I avoid getting COVID-19? -- Man on Airplane With Mask and Hand sanitizer

News Release

6/16/2021

Wide Variations in Ginseng Potency, Quality Revealed by ConsumerLab Tests

White Plains, New York, June 16, 2021 — Ginseng is promoted for a wide range of uses, from increasing energy, "vitality," and libido, to improving blood sugar levels and preventing colds.

CL Answer

Which supplements are best for seasonal allergies?

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

Supplements for Seasonal Allergies -- Woman Outside Sneezing

CL Answer

Is it possible to take too much vitamin C?

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

Bottles of vitamin C pills

Product Review

Green Coffee Bean Extract Supplements Review (for Weight Loss)

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

Green Coffee Bean Extract Supplements Reviewed by ConsumerLab.com

Recalls & Warnings

8/01/2022

53 Protein, Meal Replacement and Nutritional Beverages Recalled Due to Bacterial Contamination

On July 29, 2022, Lyons Magnus LLC issued a recall of 53 protein, meal replacement, and nutritional beverages, including those sold under the brand names of Glucerna, Premier Protein, Oatly, and others, due to the potential for microbial contamination, including from Cronobacter sakazakii.

Recalls & Warnings

6/05/2020

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 ...

News Release

4/17/2021

ConsumerLab Identifies Best and Worst Avocado Oils Based on Testing

White Plains, New York, April 17, 2021 — Avocado oil has become increasing popular, but concern about the quality of products was raised in 2020 by a study from researchers at the University of California, Davis that found that as much as 82% of avocado oil samples bought locally or online in ...

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

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

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

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

Product Review

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

Disturbing Findings for Some Major Brands of Green Tea. See the Test Results and Our Top Picks for Green Tea.

Green Tea Review By ConsumerLab.com

Product Review

CoQ10 and Ubiquinol Supplements Review

Find the Best CoQ10 and Ubiquinol Supplements and Learn What They Do

CoQ10 and Ubiquinol Supplements Reviewed by ConsumerLab.com

CL Answer

Is it true that oat cereals, like Cheerios, oatmeal, oatflakes and steel-cut oats can be contaminated with a toxin?

Find out if oat cereals, like Cheerios and oatmeal, can be contaminated with the fungal toxin ochratoxin A (OTA). ConsumerLab.com's answer explains.

Oat Cereals and Fungal Toxin OTA -- bowl of oat cereal

CL Answer

What are the health benefits of tart cherry juice?

See the evidence for tart cherry juice health benefits from clinical studies. Find out if tart cherry has anti-inflammatory effects, if it can improve sleep, lower high blood pressure, or help for muscle pain and osteoarthritis.

Tart Cherry Benefits -- glass of cherry juice and two tart cherries

CL Answer

6 Tips to Avoid Getting a Pill Stuck in Your Throat

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

Pill Getting Stuck in Throat

News Release

2/06/2021

One-Third of Echinacea Supplements Fail ConsumerLab Tests

White Plains, New York, February 6, 2021 — Echinacea is often promoted to help ward off colds, but recent ConsumerLab tests show that consumers may not always be getting what they expect when they buy an Echinacea supplement.

CL Answer

What's the best protein to keep and gain muscle when you're older?

Find out which type of protein is best for older adults who want to maintain or gain muscle. Info on protein powders and shakes, whey, soy, casein, hemp, pea and more.

Best Protein

CL Answer

Which is the best pulse oximeter for home use?

Best pulse oximeter for home use (COVID-19, asthma and COPD). Differences between home use and FDA-approved medical pulse oximeters.

Best Pulse Oximeter for Home Use -- Pulse Oximeter

CL Answer

Is ingesting colloidal silver helpful for any condition and is it safe to use? I'm seeing it promoted for many applications.

Find out if there is evidence showing colloidal silver can help to treat infections, boost the immune system, help with arthritis and more, plus find out if colloidal silver can cause blue skin or other side effects.

Benefits and Risks of Colloidal Silver? -- dropper bottle of colloidal silver

CL Answer

Is it true that NAC can help clear nasal passages?

Find out if N-Acetyl Cysteine (NAC) can help with post nasal drip & general sinus congestion and about supplements that may reduce cold symptoms.

Ill Woman in Bed Blowing Nose

CL Answer

How are you staying healthy during the coronavirus pandemic?

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

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

Recalls & Warnings

9/28/2022

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

12/05/2018

Seller of Cold and Flu Supplements, "SuperFood" & More Warned by FDA

On October 30, 2018, the FDA issued a warning letter to American Botanical Pharmacy following a review of the company's website (www.herbdoc.com) and Facebook page, which found statements made about some of its products to be drug claims.

Product Review

CBD & Hemp Extract Supplements, Lotions, and Balms Review

Find the Best CBD at the Lowest Price! Learn How Much CBD (and THC) Is Really in Products and Which Are Our Top Picks.

CBD and Hemp Oils Reviewed by ConsumerLab.com

News Release

11/24/2020

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

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

News Release

6/26/2020

No Garlic in Some Garlic Supplements? -- Best and Worst Garlic Supplements Revealed in Tests by ConsumerLab

White Plains, New York, June 26, 2020 — Garlic can modestly reduce total cholesterol levels and blood pressure, and it may help prevent colds. However, recent ConsumerLab tests revealed that the strength of garlic supplements on the market varies widely, and some may not contain any garlic.

News Release

6/06/2020

Best Vitamin C Supplements Revealed by ConsumerLab

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

News Release

4/14/2020

ConsumerLab Tests Reveal Best Probiotic Supplements and Those With Quality Issues

White Plains, New York, April 14, 2020 — Probiotic supplements may be helpful for conditions including antibiotic-associated diarrhea, irritable bowel syndrome, and respiratory infections.

News Release

3/12/2020

ConsumerLab Tests Reveal Big Differences Among Elderberry Supplements

White Plains, New York, March 12, 2020 — Elderberry extracts have long been promoted for fighting colds and flu, and, more recently, as a natural remedy for coronavirus (COVID-19).

Recalls & Warnings

2/09/2022

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

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

Recalls & Warnings

6/05/2020

LifeHealth Science Warned for Manufacturing Violations

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

CL Answer

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

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

Levothyroxine (Synthroid) Supplement Interactions

Recalls & Warnings

12/11/2020

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

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

Recalls & Warnings

4/02/2021

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

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

News Release

3/04/2020

CBD Most Often Used for Pain, Then Sleep, According to CL Survey. Half of Users Think It Works.

White Plains, New York, March 4, 2020 — A recent survey of 9,782 people who use dietary supplements found that 14.5% of respondents purchased CBD (or hemp extract, which is a source of CBD) in 2019. The survey asked those people what they used CBD for and whether or not they thought it worked.

Recalls & Warnings

7/22/2022

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

10/18/2017

FDA Warns Seller of Arthritis, Blood Pressure, Diabetes Supplements For Making Drug Claims

On August 15, 2017, the FDA issued a warning letter to Years to Your Health, Inc., following an inspection of the company's website which found a number of their products to be misbranded, as they contained drug claims.

Recalls & Warnings

4/03/2020

FDA Warns Seller of Homeopathic Medicine for Coronavirus Claims

On April 1, 2020, the FDA issued a warning letter to Homeomart Indibuy for selling products with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

12/21/2016

Seller of 5-HTP, Chromium, Curcumin and More Warned for Drug Claims

On December 1, 2016, the FDA issued a warning letter to Aurora Health and Nutrition following a review of the company's website, which found statements made about its products, 5-HTP, Alpha Lipoic Acid, the Argentyn 23 product line, Artecin 90 Vegetarian Capsules, ...

Recalls & Warnings

12/17/2020

FTC Crackdown on Six Deceptive CBD Products

On December 17, 2020, the FTC announced that it is taking action against six companies for selling CBD products with unsupported and deceptive health claims that they can treat a variety of conditions, including cancer, heart disease, hypertension, Alzheimer's disease, and others.

Recalls & Warnings

10/06/2020

FDA Warns Seller of Red Yeast Rice, Vitamin D, Blood Pressure Supplements, and More

On August 28, 2020, the FDA issued a warning letter to Dr. Sam Robbins, Inc.

News Release

10/26/2018

Best Vitamin A Supplements, Including Cod Liver Oils, Identified by ConsumerLab

White Plains, New York, October 26, 2018 — Vitamin A is necessary to maintain good vision, skin, and immune functioning, and supplementation can be beneficial for certain conditions — although most people get enough from food and getting too much vitamin A can be dangerous.

Recalls & Warnings

9/08/2018

Homeopathic Oral Sprays Recalled Due to Possible Bacterial Contamination

On September 5, 2018, Beaumont Bio Med, Inc., issued a recall of all of its water and alcohol-based homeopathic products because they have the potential to contain microbial contaminants. 

News Release

5/02/2018

Best Probiotic Supplements and Kombuchas? -- ConsumerLab Tests 41 Popular Products, Reveals Problems and Top Picks

White Plains, New York, May 2, 2018 — With so many different probiotic supplements on the market, each providing different amounts and strains of beneficial bacteria or yeast, choosing the right one can be an overwhelming task.

Recalls & Warnings

5/23/2020

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).

News Release

10/19/2017

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

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

Recalls & Warnings

3/08/2016

Seller of Echinacea Warned Manufacturing Violations, Drug Claims

On February 25, 2016, the FDA issued a warning letter to Herbal Energetics/ In Joy Organics, following a facility inspection which found the company's product, X Out-Rays to be adulterated because it was prepared, packed, or held under conditions that violate Current Good ...

Recalls & Warnings

2/10/2018

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

1/29/2018

Seller of Male Enhancement, Prostate Supplements & More Warned for Drug Claims

On January 10, 2018, the FDA issues a warning letter to USA Labs AKA Power Source Distributors, Inc following a review of the company's website which found statements made about its products, including Maximum Male, Beta 300 (Beta Prosturol), Chromium Max 1000, DHEA, Healthy Cold-X and ...

News Release

5/17/2017

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.

News Release

3/15/2017

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

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

News Release

3/01/2016

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

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

News Release

2/09/2016

Lysine: Does It Work for Cold Sores and Which Brands Are Best? -- ConsumerLab.com Reviews the Evidence and Tests Supplements Often Used to Prevent Herpes Eruptions

White Plains, New York, February 9, 2016 — Lysine is an essential amino acid often taken as a supplement to prevent cold sores, genital herpes lesions, and canker sores. It's also given to cats with feline herpesvirus 1.

Recalls & Warnings

1/30/2013

Maker of Cold and Flu Supplement Warned For Making Drug Claims

On January 24, 2013, the FDA and FTC jointly issued a warning letter to Flu and Cold Defense LLC, after a review of the company's website and marketing materials found statements made about the cold and flu dietary supplement GermBullet to be drug claims.

News Release

11/06/2015

Some Surprising Results from Tests of 43 Probiotic Supplements and Kefir Drinks

White Plains, New York, November 6, 2015 — How many beneficial organisms are in probiotic supplements and kefir drinks? Are any contaminated with pathogens, such as E. coli, and do those labeled as "gluten free" or "99% lactose-free" live up to their claims? To find out, ConsumerLab.

News Release

12/10/2014

ConsumerLab.com Identifies Best Zinc Products for Colds, Eyes, and Zinc Deficiency -- Popular Zinc Supplements and Lozenges Tested and Compared

White Plains, New York, December 10, 2014 — "Zinc supplements have been shown to shorten colds and reduce the progression of advanced macular degeneration, but not all products provide the dosage proven effective, as well as pass criteria for supplement quality," says Tod Cooperman, M.D.

Recalls & Warnings

8/29/2017

FDA Warns Seller of Supplements for Allergies, Joint Pain, Bone Health, and More

On August 16, 2017, the FDA issued a warning letter to Total Nutrition, Inc.

Recalls & Warnings

8/05/2017

Children's Ayurvedic Medicine Formula Contains High Levels of Lead

On August 4, 2017, the FDA warned parents and caregivers not to use Balguti Kesaria Ayurvedic Medicine due to the risk of lead poisoning. 

Recalls & Warnings

4/04/2017

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

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

Recalls & Warnings

10/29/2016

Miracle Mineral Solution Danger

The husband of a woman who died hours after drinking the liquid supplement Miracle Mineral Solution in 2009 believes the supplement caused her death, according a recent ABC News article and feature segment on ABC's 20/20 in October 2016.

Recalls & Warnings

12/20/2002

U.S. Seizes Supplement Illegally Marketed for Virus and Cold Use; FDA Steps Up Activity Against Supplements with False Claims

The U.S. Food and Drug Administration (FDA) announced that United States Marshals on Monday, December 16, 2002, seized approximately 3000 bottles, valued at more than $100,000, of EverCLR, a dietary supplement. EverCLR is marketed by Halo Supply Company of San Diego, Calif.

Recalls & Warnings

8/27/2012

Protein Drinks Recalled For Undeclared Milk Source

On August 24, 2012, True Nutrition issued a recall of Whey Protein Concentrate, Whey Protein Isolate Cold-Filtration, Whey Protein Isolate Micro-Filtrated, Whey Protein Isolate Cross-Flow Microfiltration and Hydrolyzed Whey Protein High Grade because labels for these products do not declare milk as ...

Recalls & Warnings

2/06/2016

Seller of Turmeric, Milk Thistle and More Warned for Manufacturing Violations, Drug Claims

On January 15, 2016, the FDA issued a warning letter to Terra Firma Botanicals, Inc.

Recalls & Warnings

1/21/2016

Morphine Found in Licorice Product

On January 20, 2016, Master Herbs, Inc. issued a recall of all lots of Licorice Coughing Liquid because it was found to contain morphine.

Recalls & Warnings

8/13/2016

Seller of Omega-3, Ginkgo, Vision Supplements & More Warned for Drug Claims

On July 22, 2016, the FDA issued a warning letter to Viva Nutraceuticals (J & E International Corporation) following a review of the company's website and promotional literature, which found statement made about its products, Eyestonia, Ginkgo Biloba 60mg, Golden Omega-3 Max, ...

Recalls & Warnings

9/01/2022

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

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

Recalls & Warnings

6/16/2009

FDA Warns of Loss of Sense of Smell with Zicam Nasal Gel/Nasal Swab

On June 16, 2009, the U.S. FDA warned consumers and healthcare professionals to discontinue use of three Zicam Nasal Gel/Nasal Swab products sold over-the-counter as cold remedies because they are associated with the loss of sense of smell that may be long-lasting or permanent.

Recalls & Warnings

6/01/2012

Homeopathic Manufacturer Settles False Advertising Suit

June 1, 2012 — A federal court in California recently authorized the settlement of a class action lawsuit against Boiron Inc. and Boiron USA, Inc.

Recalls & Warnings

7/05/2012

FDA Warns Good Herbs Inc. of Manufacturing Violations and Drug Claims

The FDA issued a warning letter to Good Herbs Inc. on May 24, 2012, after a facility inspection found the company to be in violation of current manufacturing regulations, including lack of documentation and written procedures.

Recalls & Warnings

12/05/2012

Hydroxycut Class Action Lawsuit To Be Settled

Iovate Health Sciences Inc. has agreed to a settlement of $25.3 million, pending final court approval, in a class action lawsuit that alleged the company deceived consumers about the safety of its Hydroxycut weight loss supplements.

Recalls & Warnings

10/17/2012

Herbal Supplement Company Warned For Manufacturing Violations and Drug Claims

On October 2, 2012, the FDA issued a warning letter to Amazing Herbs Nutraceuticals following a facility inspection which found violations of Current Good Manufacturing Practices (CGMPs) for dietary supplements.

Recalls & Warnings

11/14/2012

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

7/01/2014

Maker of Elderberry Concentrate Warned for Manufacturing Violations

On June 23, 2014, the FDA issued a warning letter to Wyldewood Cellars Inc.

Recalls & Warnings

1/28/2014

Emergen-C Settles False Advertising Lawsuit

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

Recalls & Warnings

12/05/2014

Maker of Immune Supplement Warned for Manufacturing Violations

On November 20, 2014, the FDA issued a warning letter to Urban Moonshine, Inc.

Recalls & Warnings

2/02/2021

FDA Warns Seller of Ginger, Echinacea, and More

On December 10, 2020, the FDA issued a warning letter to Prairie Dawn Herbs following a review of the company's website, which found statements made about the company's products Chest Tea, Ginger Oil, Dandelion root Tincture, Echinacea purpurea Tincture, Antispasmodic Tincture, ...

Recalls & Warnings

6/13/2013

Seller of Cardio, Immune, Greens Supplements and More Warned For Drug Claims

On May 29, 2013, the FDA issued a warning letter to dietary supplement company Nature's Answer, following a review a the company's website, www.naturesanswer.

Recalls & Warnings

8/14/2008

Airborne to Pay $30 Million for Deceptive Advertising of Cold Remedy -- Refunds Available

On August 14, 2008, the Federal Trade Commission (FTC) announced that Airborne Health, Inc.

Recalls & Warnings

11/07/2015

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

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

News Release

1/29/2014

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

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

News Release

11/25/2013

Many Probiotic Supplements Fall Short on Listed Amounts of Helpful Organisms

White Plains, New York, November 25, 2013 — Probiotic supplements and foods containing "friendly" bacteria or yeast have become popular among people hoping to improve bowel function, immunity, and even mood.

News Release

8/22/2012

Contamination and Other Problems Found in Fish Oil Supplements -- Large Review by ConsumerLab.com Reveals Excessive PCBs or Mislabeling in Over 30% of Omega-3 Supplements

August 22, 2012 — The quality of fish oil / omega-3 supplements varies across brands, according to recent tests by ConsumerLab.com, which independently reports on the quality of health products. Analyses of 35 products selected and purchased by ConsumerLab.

News Release

3/12/2012

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

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

News Release

2/09/2012

Probiotics grow in popularity but don't always deliver on promises says ConsumerLab.com -- New report provides guidance to consumers

White Plains, New York, February 9, 2012 — Probiotic supplements and foods containing "friendly" bacteria or yeast have become popular options for people hoping to improve bowel function or boost immunity. But many customers are confused by the vast array of choices.

Recalls & Warnings

4/14/2020

Teami Tea Settles Charges of Unproven Claims and Deceptive Celebrity Endorsements

On March 6, 2020, the FTC announced that Teami, LLC, a marketer of tea and skin care products, agreed to settle charges that it was selling products with unproven claims and misleading celebrity endorsements.

Recalls & Warnings

11/29/2019

FDA Warns Seller of "All Natural" Treatment for Opioid Withdrawal, Migraines & More

On November 18, 2019, the FDA issued a warning letter to EPH Technologies, Inc., following a review of the company's websites, which found statements made about some of the company's products, including Detoxoplex, Sinople, and Migrenz, to be drug claims.

Recalls & Warnings

9/26/2014

Seller Warned for Promoting Essential Oils to Treat Flu, MRSA, Measles and More

On September 22, 2014, the FDA issued a warning to doTERRA International, LLC.

Recalls & Warnings

5/30/2015

Seller of Supplements for Herpes, Prostate Cancer & More Warned for Drug Claims

On May 7, 2015, the FDA issued a warning letter to Strictly Health Corporation, following a review of the company's websites which found statements made about FENVIR, Prosta Pep and Tonalin brand CLA to be drug claims.

Recalls & Warnings

7/11/2014

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

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

Recalls & Warnings

5/06/2014

Seller of Flaxseed, Ginkgo and More Warned for Manufacturing Violations and Drug Claims

On April 18, 2014, the FDA issued a warning letter to Iowa Select Herbs, LLC, following a facility inspection which found the company's products, including Flax Seed, Holy Basil, Papaya Leaf Extract, and Ginkgo Leaf Extract products, to be adulterated because they were prepared, packed, or held ...

Recalls & Warnings

5/03/2013

Homeopathic Company Warned For Drug Claims and Improper Labeling

On March 12, 2013, the FDA issued a warning letter to Natural Medicine Associates, Inc.

Recalls & Warnings

11/26/2012

Court Injunction Halts Sale of Cholesterol, CoQ10, Progesterone, Prostate Supplements and More

On November 20, 2012, Pharmacist's Ultimate Health agreed to cease sales and distribution of its dietary supplements by entering into a Consent Decree of Permanent Injunction in the U.S. District Court of Minnesota.

Recalls & Warnings

9/18/2012

Maker of Noni, Nopal, Blood Sugar and Cholesterol Supplements Warned For Drug Claims, Misbranding, and Manufacturing Violations

On August 27, 2012, the FDA issued a warning letter to Naturavit, Inc. for making statements about dietary supplements Noni Imperial Hawaiian, Garlic and Parsley, Cholestol, Nopal and Diatrin that constitute drug claims.

Recalls & Warnings

10/27/2004

Some Supplements Can Damage Eyes At High Doses and with Topical Use

As reported by Reuters Health on October 21, 2004, an article in the current issue of the American Journal of Ophthalmology suggests that some herbal remedies and nutritional supplements can damage the eyes.

News Release

12/20/2011

Choose zinc supplements carefully -- ConsumerLab.com finds only some have dosage proven to shorten colds, reduce eye disease

White Plains, New York — December 20, 2011 — Can zinc supplements shorten colds and reduce the progression of advanced macular degeneration? "Yes, but not all supplements provide a dosage that has been proven effective." says Tod Cooperman, M.D., President of ConsumerLab.com.

News Release

1/11/2011

Spoilage and labeling errors found with some omega-3 and -6 supplements; Review of evening primrose, flaxseed, borage, and black currant oil supplements

WHITE PLAINS, NEW YORK — JANUARY 10, 2011 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Only 11 of 17 products selected for testing met quality criteria for freshness and labeling.

News Release

8/16/2010

Problems persist with ginseng supplements -- Review by ConsumerLab.com finds 45% of products don't provide full amount of ingredient or are contaminated

WHITE PLAINS, NEW YORK — August 16, 2010 — ConsumerLab.com reported today that five out of eleven ginseng supplements recently selected for testing contained less ginseng than expected from their labels or were contaminated with lead and/or pesticides.

News Release

6/30/2010

Echinacea supplements vary widely in ingredients but found clear of contaminants according to ConsumerLab.com -- New review guides consumers through wide range of dosage, species, preparations, and formulas in echinacea products

WHITE PLAINS, NY — June 30, 2010 — Echinacea may help prevent colds and cold-symptoms, but choosing a supplement is difficult due to the range of ingredients offered. To provide consumers guidance, ConsumerLab.

News Release

12/09/2008

Tests of zinc supplements by ConsumerLab.com show only some provide dosage proven to shorten colds, reduce eye disease. Lead contamination found in one product.

WHITE PLAINS, NEW YORK — DECEMBER 9, 2008 — Zinc supplements can shorten colds and reduce the progression of advanced macular degeneration, among other uses. But a new report by ConsumerLab.

News Release

3/07/2008

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

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

News Release

10/10/2006

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

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

News Release

4/07/2004

ConsumerLab.com finds some zinc supplements low in ingredient and many don't instruct on proper use — Consumers urged to learn more about zinc when using supplements

WHITE PLAINS, NY — April 7, 2004 (updated May 4, 2004) — ConsumerLab.com announced today that two of nine zinc pill or liquid supplements that it recently tested contained only 73% to 85% of the claimed amounts.

News Release

3/18/2004

Many echinacea supplements don't meet quality standards according to ConsumerLab.com — Test results of cold-reducing herbal supplements released

WHITE PLAINS, NY — March 18, 2004 — ConsumerLab.com announced today that five echinacea supplements failed to pass recent independent testing. Lower than claimed amounts of key compounds such as echinacoside and phenols were the most common problem.

News Release

3/02/2004

ConsumerLab.com survey finds most consumers highly satisfied with supplements; Ratings vary by brand

WHITE PLAINS, NY — March 2, 2004 — ConsumerLab.com announced today that 78% of consumers recently surveyed report being "extremely" or "very" satisfied with the supplement brands they used. Ratings varied by brand. The highest rating was for Nutrilite (96%), a direct sales brand.

News Release

5/05/2002

Study finds supplement users avoid prescription drugs due to side effects, not cost — Brands top rated by users also identified in new survey by ConsumerLab.com

WHITE PLAINS, NY — March 5, 2002 — ConsumerLab.com, traditionally known for its independent laboratory evaluations of dietary supplements and nutritional products, announced surprising findings today from a new survey of supplement users.

Recalls & Warnings

11/28/2014

Seller of Herbal Extracts Warned for Manufacturing Violations, Drug Claims

On November 3, 2014, the FDA issued a warning letter to Avena Botanicals, Inc.

Recalls & Warnings

8/02/2014

Judge Orders BioAnue To Stop Illegal Cancer and Disease Claims

On July 23, 2014, Gloria D.

Recalls & Warnings

5/10/2013

Maker of Concentration, Pain, Immune, Cholesterol Supplements Warned For Drug Claims

On April 24, 2013, the FDA issued a warning letter to EuroPharma Co., Inc., following a review of the company's website which found statements made about Calm Kids, CholestCaps, CuraMed 375 mg, CuraMed 750 mg, Curamin, Mental Advantage, Tri-Iodine, and Viragen to be drug claims.

Recalls & Warnings

8/30/2012

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

10/05/2012

Illegal Claims on Weight Loss, Immune System Dietary Supplements, and Few Backed by Clinical Data

On October 3, 2012, the U.S. Department of Health and Human Services issued a report warning that dozens of weight loss and immune system supplements have illegal claims of curing or treating disease on their labels and/or lack the scientific evidence to support such label claims.

News Release

3/06/2002

Study finds supplement users avoid prescription drugs due to side effects, not cost — Brands top rated by users also identified in new survey by ConsumerLab.com

WHITE PLAINS, NY — March 6, 2002 — ConsumerLab.com, traditionally known for its independent laboratory evaluations of dietary supplements and nutritional products, announced surprising findings today from a new survey of supplement users.

News Release

5/07/2001

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

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

Recalls & Warnings

4/12/2013

Zicam Advised Against Using Cold Prevention Claim In Advertising

On April 5, 2013, it was reported that the National Advertising Division (NAD) recommended that Matrixx Initiatives, maker of Zicam cold products, stop making claims in its advertising that the product can prevent colds.

Recalls & Warnings

2/11/2012

Herbal Sprays for Colds and Cold Sores Recalled

On February 10, 2012 the U.S. FDA posted a notice announcing the recall of all "Koff & Kold" and "Kold Sore" sprays by Wholistic Herbs Inc. The products were distributed throughout the United States.

Recalls & Warnings

6/05/2018

FDA Warns Seller of Colloidal Silver

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

Recalls & Warnings

3/04/2008

Airborne Settles Lawsuit Over False Advertising of its "Miracle Cold Buster"

On March 4, 3008, the Center for Science in the Public Interest (CSPI) announced that the makers of Airborne -- a multivitamin and herbal supplement whose labels and ads falsely claimed that the product cures and prevents colds -- will refund money to consumers who bought the product, as part of a ...

Recalls & Warnings

3/16/2006

Garden of Life, Maker of Primal Defense, Settles FTC Charges

On March 9, 2006, The Federal Trade Commission (FTC) announced that an operation that marketed dietary supplements sold at Whole Foods Market, GNC, the Vitamin Shoppe, and on the Internet settled FTC charges that they made deceptive advertising claims about their supplements.

Recalls & Warnings

7/15/2010

Supplement Company Pays $5.5 Million to Settle False Advertising Claims

On July 14, 2010, the Federal Trade Commission (FTC), as part of its ongoing efforts to stop bogus health claims, announced that it is requiring a major marketer of dietary supplements to pay $5.

Recalls & Warnings

2/21/2013

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

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

Recalls & Warnings

2/20/2013

Cold, Flu and Stress Supplement Company Warned For Adulteration, Drug Claims And More

On October 5, 2012, the FDA issued a warning letter to dietary supplement manufacturer Wholistic Herbs, Inc. following a facility inspection which found the company's products, including At-Ease, Morning Calm, Aller-Ban, Stomach Flu, Kold & Koff, Kold Sore, and L.

Recalls & Warnings

6/10/2017

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

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

Recalls & Warnings

12/17/2008

Airborne Settles Over False Advertising -- $7 Million to States

On December 17, 2008, the Seattle Times reported that Airborne Health, makers of a top-selling product marketed as a cold prevention and treatment remedy, signed a $7 million settlement to settle false advertising claims leveled by 32 state attorneys general and the District of Columbia.

Recalls & Warnings

10/24/2012

Garlic Supplement Maker Warned For Misbranding and Drug Claims

On October 10, 2012, the FDA issued a letter to dietary supplement manufacturer Garlic Wise because statements made in a brochure about the company’s Alli-C garlic supplement promote the product as a drug. Alli-C was also found to be misbranded due to inadequate directions for use.

Recalls & Warnings

10/21/2014

Seller of Weight Loss, Saw Palmetto Supplements and More Warned for Drug Claims

On October 9, 2014, the FDA issued a warning letter to Bethel Nutritional Consulting, Inc., following a review of the company's website which found statements made about 15 Day Detox Diet, Alpha Lipoic Acid. 300 mg.

Recalls & Warnings

7/08/2015

Marketer Prohibited From Promoting Mineral "Cure" For Autism

Kerri Rivera, author of "Healing the Symptoms Known As Autism," has signed an agreement with the Illinois Attorney General which prohibits her from promoting Miracle Mineral Supplement (MMS) as a cure for autism.

Recalls & Warnings

3/31/2005

FDA Warns Marketer of "Vitamin O" Product to Cease Unsubstantiated Claims

The U.S. Food and Drug Adminstration (FDA) has sent a Warning Letter (dated February 8, 2005) to Donald L. Smyth, President, R-Garden Inc., and Rose Creek Health Products, Inc. warning that its "Vitamin O" product was, among other things, being marketed with unsubstantiated health claims.

Recalls & Warnings

10/10/2014

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

8/29/2012

Herbal Supplement Company Warned For Medical Claims

On August 2, 2012, the FDA issued a warning to HSAC Enterprises, Inc. dba Kare-N-Herbs subsequent to a facility inspection and website review in May 2012 which found statements made about Kold Kare, Energy Kare and Tranquility Kare dietary supplements to constitute drug claims.

Recalls & Warnings

12/19/2012

Zicam Nasal Gel Recalled Due to Potential Bacterial Contamination

On December 18, 2012, Matrixx Initiatives issued a voluntary recall of a single lot of Zicam Extreme Congestion Relief nasal gel after routine testing confirmed a sample from this lot was contaminated with Burkholderia cepacia.

Recalls & Warnings

8/09/2010

FDA Warns Against "Miracle" Mineral Supplement

On July 30, 2010, The U.S. FDA warned consumers not to consume or use Miracle Mineral Solution, an oral liquid solution also known as "Miracle Mineral Supplement" or "MMS." The product, when used as directed, produces an industrial bleach that can cause serious harm to health.

Recalls & Warnings

5/30/2014

Seller of Brain, Diabetes, Echinacea Supplements and More Warned for Drug Claims

On April 22, 2014, the FDA issued a warning letter to Mundo Natural Inc., following a review of the company's website which found statements made about supplements Neuro AD, Stop Diabetes, Stop High Blood Pressure, Morninga 7 and Purpurea Echinacea to be drug claims.

Recalls & Warnings

6/07/2013

Maker of Colloidal Silver and Mushroom Extract Supplements Warned For Manufacturing Violations and Drug Claims

On May 2, 2013, the FDA issued a warning letter to Earthborn Products, Inc.

Recalls & Warnings

12/22/2005

Health Canada Warns Consumers Not to Take Chaparral

On December 21, 2005, Health Canada (Canada's health ministry) warned consumers not to ingest the herb chaparral in the form of loose leaves, teas, capsules or bulk herbal products because of the risk of liver and kidney problems.

Recalls & Warnings

5/03/2013

Maker of Omega-3, Saw Palmetto, St. John’s Wort Supplements And More Warned For Manufacturing Violations and Drug Claims

On March 19, 2013, the FDA issued a warning letter to Sunset Natural Products Inc.

Recalls & Warnings

1/11/2013

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

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

Recalls & Warnings

6/05/2012

Many "Grapefruit Seed Extracts" Adulterated

On June 4, 2012, the American Botanical Council (ABC) announced the publication of a review of scientific literature regarding “grapefruit seed extracts,” raising concerns about apparent adulteration of products in the US and international marketplaces.

Recalls & Warnings

6/21/2011

FDA Seizes Probiotics Over Marketing Claims

On June 7, 2011, the U.S. FDA announced that, at its request, U.S. Marshals seized probiotic products from UAS Laboratories, Inc., of Eden Prairie, Minn. because the company markets the products as drugs.

Recalls & Warnings

10/03/2014

Seller of Green Tea, Prostate, Pain Supplements and More Warned for Manufacturing Violations and Drug Claims

On July 25, 2014, the FDA issued a warning letter to AMS Health Sciences, LLC following a facility inspection which found the company's products, including saba ACE, UROPOWER, UROSure, Digest-Eze, Shark Cartilage, Colloidal Silver, and Mobilite to be adulterated because they were prepared, packed, ...

Recalls & Warnings

6/09/2005

FTC Cracks Down on "HGH" Supplements; $20 Million in Consumer Redress

On June 9, 2005, The Federal Trade Commission (FTC) announced that two Florida businesses have agreed to a federal court order requiring them to pay up to $20 million in consumer redress – the largest monetary judgment ever obtained in an FTC health fraud case – to settle charges that they ...