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Probiotics

Trying to find the best probiotic supplements? Our tests found that not all products enough cells (CFUs) to match what's been shown to work. See our results, comparisons, and Top Picks for popular brands and get the evidence for specific probiotic strains for uses such as IBS, diarrhea, gas, allergies and colds, infections, weight loss and more. Plus, get information about proper storage, safety, side effects, and drug interactions with probiotics.

Probiotics Review

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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

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

Are some probiotics dangerous? I've heard that Bacillus subtilis, a soil-based probiotic, can cause infections.

Find out if soil-based probiotic supplements are safe to take. Information about side effects, allergic reactions, infections and more.

Are probiotics safe? -- probiotic capsules and bottle

CL Answer

I eat one to two cups of Greek yogurt every day. Do I still need to take a probiotic supplement?

Find out if eating Greek yogurt is sufficient to obtain probiotics, or if supplements can still help.

Greek Yogurt

CL Answer

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

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

Best time to take probiotics

CL Answer

Do probiotics help with lactose intolerance?

Find out if probiotics can help with lactose intolerance. ConsumerLab's answer explains, including some foods that may cause fewer symptoms in the lactose intolerant.

Woman with Stomach Pain Holding Glass of Milk

CL Answer

How do I choose the best probiotic supplement? There are so many different strains of bacteria!

Information on how to choose the best probiotic supplement based on safety and our lab test on probiotic bacteria content.

Probiotic Supplements and Bottles Against Blue Background

CL Answer

I developed a rash soon after starting a probiotic. Is it possible to be allergic to probiotics?

Find out if probiotics can cause allergic reactions, including skin rashes, and why.

Young Woman Scratching Forearm

CL Answer

Do probiotics really help prevent or treat vaginal yeast infections?

Information on using probiotics for treating and preventing yeast infections, including evidence from clinical studies.

Woman with Long Brown Hair Taking White Probiotic

CL Answer

Is it best to take probiotic supplements with or without food? It seems like everyone has a different recommendation.

When is the best time to take probiotic supplements? Learn if you should take your probiotic with or without food.

Probiotics

CL Answer

Can probiotics help lower cholesterol?

Learn more about how probiotics like Cardioviva can affect cholesterol.

Cholesterol in Wooden Block Letters Against Brown Wooden Background

CL Answer

Can a probiotic help men with prostatitis?

Learn more about prostatitis, the effects of probiotics on prostatitis, and other natural treatments.

CL Answer

Do probiotics have to be enterically coated to be effective?

Find out if why some probiotics areenterically coated, whether probiotics need to be enterically coated, potential downsides and more.

Woman Holding Probiotic and Glass of Water

CL Answer

What are the benefits of Daily Synbiotic by Seed Health? Does it do what it claims, and is it better than other probiotics and prebiotics?

Review of Daily Synbiotic by Seed, including information about the prebiotic and probiotic strains in the supplement, and whether there is evidence of benefit for the synbiotic.

Person pouring Daily Synbiotic capsules from container into other hand

Clinical Update

3/04/2022

Probiotics: Single or Multi-Strain?

Are multi-strain probiotics more effective than single-strain probiotics? Find out what a recent study showed in the Single-strain or multi-strain? section of our Probiotics Supplements Review. Also see our Top Picks for probiotics based on intended use.

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

Do probiotics that come in different forms, like gum or lozenges, really work?

Find out if probiotic gum and lozenges help with gum disease or throat infections.

Woman with Purple Scarf Holding Yellow Lozenge

CL Answer

What are prebiotics? Is it important to look for them when choosing a probiotic supplement?

Learn more about prebiotics, including benefits and safety.

Prebiotics Health Benefits -- prebiotic supplement powder

CL Answer

With probiotics, how many CFUs should I look for as the dose? Is more necessarily better?

Learn more about the proper amount of cells or colony forming units (CFUs) a probiotic should contain, including if more is always better.

What is the proper CFU dosage of probiotics? -- Probiotic supplements

CL Answer

Is the probiotic "Milk Test," as described on many websites, really an effective way to test the quality of the bacteria in probiotic supplements at home?

Is the probiotic "Milk Test" an effective at-home test of the quality of the bacteria in probiotic supplements?

Milk and Probiotics Against White Background

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

Clinical Update

6/09/2020

Probiotics That Do or Don't Work

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

Clinical Update

7/22/2015

Probiotics May Not Work As Thought

Research continues to reveal promising uses for probiotics, but it's also showing that probiotics don't necessarily work by changing the types of organisms in our gut. A new study with Culturelle sheds light on this. Details, along with information about what probiotics can and cannot do and our tests of 43 probiotic supplements, are found in the Probiotic Supplements Review >>

CL Answer

7 Supplements That May Help Treat Peptic Ulcers and 3 To Avoid

Peptic ulcers caused by H. pylori infection are typically treated with antibiotics, but certain supplements may also help. Find out which 7 supplements might be beneficial and which 3 should be avoided.

Supplements for peptic ulcer disease - young man with stomachache

CL Answer

Which supplements have been shown to be helpful for autism?

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

Bottle and Pills Spread Out on Blue Background

CL Answer

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

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

Woman Taking Pill with Glass of Water

Recalls & Warnings

12/01/2021

Probiotics Recalled Due to Bacterial Contamination, May Be Life-Threatening to Some

On December 1, 2021, Livia Global, Inc issued a voluntary recall of two lots of probiotics due to potential contamination with Pseudomonas aeruginosa. This bacterium, if ingested, can cause life-threatening infection in immunocompromised individuals.

CL Answer

What is Lactospore? I see it is an ingredient in some probiotic supplements.

Lactospore information and more about sporulating probiotic bacteria, and other probiotic strains.

Woman Taking Supplement in Mirror

CL Answer

Do probiotics help prevent urinary tract infections?

Find out if probiotics can help to prevent urinary tract infections (UTIs). Plus, information about other supplements that may help for UTIs, including cranberry and D-mannose. ConsumerLab.com's answer explains.

Product Review

Greens and Whole Food Powders and Supplements Review (Including Chlorella and Spirulina)

See How Powdered Vegetables, Fruits, and Algae Compare and Avoid Problems

Clinical Update

5/14/2012

Probiotics Reduce Risk of Diarrhea from Antibiotics

A review of over 60 clinical studies concluded that probiotics are associated with a 42% reduction in the risk of diarrhea due to antibiotic administration. The benefit appears greater for certain probiotics. For more details, including our tests of probiotic supplements, see the update in the Probiotic Supplements Review >>

Clinical Update

3/19/2014

Probiotic Helps with Colic

Daily use of a probiotic reduced crying time in infants by nearly half and regurgitation by more than one-third in a recent study. Probiotics have also reduced abdominal pain in older children. Based on their safety, probiotics seem worth a try for these uses. Details about the products and dosage are in the update to the Probiotics Review >> 

Clinical Update

5/15/2016

Probiotics a Waste of Money?

Some headlines this week suggested that probiotics are not worthwhile. The stories cited a new research study which found that probiotics do not cause a lasting effect on the gut. The headlines are misleading, as we explain in the "What It Does" section in our Probiotic Supplements Review >>

Clinical Update

7/26/2014

Probiotics Lower Blood Pressure

Probiotics may help lower high blood pressure, especially when multiple strains are taken for a certain period of time, according to a new analysis. Get the details, as well as information about other uses for probiotics, in the updated Probiotic Supplements Review >>

Clinical Update

3/29/2015

Preventing Eczema with Probiotics

Allergy experts recently concluded that, when there is a family history of allergy, probiotics (taken by the mother or child) can reduce the risk of the child having eczema. For more information about this and other uses of probiotics — as well as our test reviews of products, see the Probiotic Supplements Review >>

Clinical Update

2/28/2017

Timing Probiotics with Antibiotics Is Key

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

Clinical Update

2/13/2017

Probiotics and Weight?

Several studies, including a recent one in Brazil, suggest that probiotics can help with weight reduction or other aspects of slimming. The studies published to-date, however, have limitations. For more details, see the "What It Does" section of the Probiotics Supplements Review (which includes our tests of products) >>

Clinical Update

3/15/2022

Probiotics to Lower Marker of Heart Attack Risk?

Some probiotics have been shown to modestly lower high cholesterol levels. Can they also lower levels of apolipoprotein B (apoB), a strong predictor of heart attack risk? See what recent research shows in the What It Does section of our Probiotics 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.

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

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

Has the probiotic VSL#3 been changed or discontinued? Is Visbiome a good alternative?

Find out if the probiotic formula VSL#3 has been changed and how it compares with Visbiome. ConsumerLab.com's answer explains.

VSL #3 vs. Visbiome -- box of VSL#3 and Visbiome

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.

Glass of Water and White Pill

CL Answer

Do any supplements help prevent or treat a cold?

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

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

CL Answer

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

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

Supplements for IBS? -- Women With Stomach Pain

News Release

11/10/2022

Best Probiotic Supplements Identified by ConsumerLab Tests

  White Plains, New York, November 10, 2022 — Probiotic supplements can be helpful in preventing or treating constipation, diarrhea, flatulence, vaginal infections, and other conditions, but with so many different products on the market, choosing the best one is no easy task.

News Release

10/28/2022

Labels on Prebiotic Supplements Are Often Unreliable, Tests Show

  White Plains, New York, October 28, 2022 — Prebiotic supplements provide fiber that feed beneficial bacteria in the gut. However, recent ConsumerLab tests show that consumers often can’t rely on labels to know how much prebiotic fiber is really in products.

CL Answer

Is it true that low-carb or Mediterranean diets help for gastroesophageal reflux disease (GERD)?

Find out if a low-carb diet, such as the Mediterranean diet, or lifestyle changes help with gastroesophageal reflux disease (GERD).

Low-carb & Mediterranean Diets for GERD? -- Table with Mediterranean foods such as fish, olive oil, walnuts, vegetables

CL Answer

Which supplements can help lower my triglycerides?

Find out whether fish oil supplements, or plant-based oil supplements, such as flaxseed oil and echium oil are best for lowering triglyceride levels. ConsumerLab.com's answer explains.

Supplements to Lower Triglyceride Levels -- fish oil capsules and stethoscope

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.

Best Supplements for Depression and Anxiety -- sad young woman sitting on couch, looking toward the window

CL Answer

I've seen the bacteria in Activia listed as Bifidobacterium animalis, Bifidobacterium lactis and Bifidus Regularis. Which is correct?

Learn more about probiotic bacteria strain names in Activia and other products.

Two 12-Packs of Activia

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

Clinical Update

11/26/2020

Probiotic for Cognition?

Can taking a probiotic improve cognitive functioning? Find out what a recent study found using a widely-available brand of probiotics in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks for probiotics.

Clinical Update

10/13/2020

Probiotic for Eczema

A probiotic was shown to reduce the extent and severity of atopic dermatitis (eczema) in a recent study. Get the details in the What It Does section of our Probiotics Supplements Review. Also, see our Top Picks for probiotics.

Clinical Update

3/03/2021

Probiotics for Ulcers?

Can probiotics help treat a common cause of stomach ulcers – H. pylori infection? Find out what new guidelines say in the What It Does section of our Probiotic Supplements Review.

For information about other supplements for peptic ulcers (and those to avoid) see our answer to the question: Do supplements help treat peptic ulcer disease? Should any be avoided?

Clinical Update

7/03/2021

Probiotics for C. difficile infection?

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

Clinical Update

1/25/2022

Probiotic to Lower Cholesterol?

Can taking a probiotic lower elevated cholesterol levels? See what a new study found in the Cholesterol-lowering section of our Probiotics Supplements Review. Also see our Top Picks for probiotics.

For other approaches to lowering cholesterol, see our answer to the question: Which supplements or foods can help lower cholesterol and keep my heart healthy?

Clinical Update

10/02/2018

Probiotic for Abdominal Pain

A probiotic was found to significantly reduce symptoms in people with acute diarrhea and abdominal pain, adding to the number of probiotics shown to have related effects. For details, see the What It Does section of the Probiotic Supplements Review. (Also see our Top Picks among probiotics).

Clinical Update

8/28/2018

Probiotics for Gum Disease

Can probiotic lozenges improve gum health when used in conjunction with oral cleanings? Find out what studies are showing in the Periodontitis section of the Probiotics Supplements Review. (Also see our Top Picks among probiotic supplements for other uses.)

Clinical Update

9/09/2018

When To End Probiotics?

If you take a probiotic when given antibiotics, at what point should you stop taking the probiotic? A new study provides some guidance. For details, see the What It Does section of the Probiotic Supplements Review. (Also see our Top Picks among probiotics.)

Clinical Update

7/06/2019

Infection from Probiotic

Although rare, be aware that infections have occurred in some people due to the probiotics they have taken. For details about recent cases, see the Concerns and Cautions section of the Probiotic Supplements Review. Also see our Top Picks among probiotics.

Clinical Update

8/29/2019

Can Yogurt Reduce Diabetes Risk?

Increasing yogurt intake, particularly in place of certain other dairy foods, may decrease the risk of developing type 2 diabetes. For details about this and other effects of yogurt, see the Fermented Dairy Foods section of the Probiotics Supplements Review. Also see our Top Picks for probiotics.

Clinical Update

3/06/2018

Do Probiotics Affect Weight?

Studies have shown some probiotics to help somewhat with weight loss and/or slimming, while others have shown no effect. However, a recent study with a popular probiotic found that it increased weight. Get the details in the Weight and fat loss section of the Probiotic Supplements Review.

Clinical Update

6/12/2018

Probiotic for IBS?

Studies have shown that certain probiotics help relieve symptoms of irritable bowel syndrome (IBS), although this can depend on the type of IBS. The most recent study focused on people with diarrhea-predominant IBS. Get the results in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks among probiotics.

Clinical Update

11/07/2015

Triglyceride-Lowering with a Probiotic

Studies with probiotics have demonstrated modest lowering of LDL ("bad") cholesterol, but the evidence has been mixed regarding triglycerides. A recent study in which a probiotic was added to a kefir drink showed a 17% reduction in triglycerides along with a modest reduction in LDL — effects not seen with the kefir alone. Details are found in the Probiotics and Kefirs Review >>

Clinical Update

7/31/2018

Probiotics & Exercise Performance

Can taking a daily probiotic improve exercise performance? Find out in the What It Does section of the Probiotic Supplements Review. (Also see our Top Picks for probiotics.)

Clinical Update

4/19/2015

Probiotics Might Reduce Risk of Depression

After taking a probiotic daily for 4 weeks, people in a recent study were less likely to have negative thoughts in response to sadness -- a predictor of whether or not sadness turns into depression. This adds to a growing body of preliminary studies suggesting benefits of probiotics in anxiety and depression. For details, including the type and dose of probiotic used, see the Probiotic Supplements Review >> 

Clinical Update

5/31/2015

Probiotic May Aid Fat Loss

A recent study in overweight men and women showed a small decrease in fat among those taking a probiotic for 12 weeks. Other small studies have shown similar benefits using different probiotics. More details, along with our reviews of probiotics containing organisms similar to those in these studies, are found in the Probiotic Supplements Review >>

Clinical Update

11/17/2013

Probiotics for Oral Health?

For people with periodontitis (inflammation around the teeth), a new study showed a probiotic lozenge resulted in additional improvement over standard dental scaling and chlorhexidine rinse. Get the details, as well as our tests of probiotics, in the updated Probiotic Supplements Review>>

Clinical Update

5/29/2014

Probiotics: An Alternative to Antibiotics for Mastitis?

Two different strains of probiotics have been found to reduce breast pain and resolve infection in nursing mothers with mastitis, as well as reduce the rate of recurrence. For details, as well as our tests of probiotic supplements, see the Probiotic Supplements Review >>   

Clinical Update

5/18/2016

Probiotics Reduce Diarrhea from Anitibiotics

Many studies show that using a probiotic supplement when taking antibiotics reduces the risk of developing diarrhea, or, as shown in a new study, the duration of diarrhea. We've summarized key points on what type, dose, and dosing schedule of probiotics work best in the "What It Does" section of our Probiotic Supplements Review >>

Clinical Update

5/04/2019

Probiotic for Anxiety?

A number of studies have evaluated probiotics for reducing anxiety, stress, and depression. See the results of the latest study in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks among probiotics.

Clinical Update

8/17/2019

Do Probiotics Help With Bone Facture?

Can taking a probiotic improve recovery from bone fracture in older people? See what a recent study found in the Bone Density and Fractures section of the Probiotic Supplements Review. Also see our Top Picks for probiotics.

Product Review

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

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

Lactase Supplements Reviewed by ConsumerLab.com

CL Answer

Does Provitalize work for weight loss and is it safe?

Find out if taking Provitalize, a probiotic supplement that also contains turmeric extract, moringa leaf extract, curry leaf extract and piperine (BioPerine), is safe and beneficial for weight management.

A bottle of Provitalize

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.

Woman Grabbing Stomach Due To Abdominal Discomfort

CL Answer

How do I choose the best CoQ10 supplement?

Looking to choose the best CoQ10 brand supplement? Understand which CoQ10 you are buying, differences in dose, absorption, quality and more. ConsumerLab explores this topic.

CoQ10

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.

Peppermint Oil for IBS? -- Bottle of peppermint oil and capsules and peppermint leaf

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.

Hypoallergenic Supplements

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

Clinical Update

11/25/2012

Probiotics Reduce Risk of Diarrhea After Antibiotics

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

CL Answer

How can I find supplements that are gluten-free on ConsumerLab.com?

Gluten-Free supplements & vitamin information including other dietary features like vegetarian, vegan, and kosher on ConsumerLab.com. Our answer explains.

Finding Gluten-Free Supplements -- gluten-free seal

CL Answer

My dog is getting older and his veterinarian recently recommended giving him a glucosamine supplement for his joints. Has ConsumerLab.com tested these, or other supplements for pets?

Find out our test results on glucosamine for dogs and cats as well as other supplements for pets.

Joint Health Supplements for Pets

CL Answer

9 Supplements That May Help Reduce Nighttime Urination (And 4 That Might Not Help)

Waking up more than once during the night to use the bathroom? Learn more about the 9 supplements that may help and 4 others that don't.

A toilet in an empty bathroom at night

News Release

2/24/2022

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).

News Release

2/26/2021

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.

News Release

2/25/2021

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.

Product Review

Protein Powders and Shakes Review

Find Out Which Protein Powders Passed or Failed Our Tests

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

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

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.

Woman Checking Blood Pressure

CL Answer

Is it dangerous to use certain herbals, vitamins, or other dietary supplements when breastfeeding?

Find out which supplements should be avoided when breastfeeding, including medicinal herbs, soy, and flaxseed.

Herbs and Supplements to Avoid When Breastfeeding

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.

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

2/29/2020

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.

News Release

2/25/2020

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

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

News Release

2/25/2019

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

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

CL Answer

The probiotic I am taking looks pink. Does this mean it is spoiled or no longer "active"?

Find out if a pink probiotic is safe, since they are usually white.

Man Examining Probiotic

CL Answer

I read that sterol supplements to lower cholesterol like CholestOff can block the absorption of vitamins. Is that true?

Find out if CholestOff and other sterol supplements can block vitamin absorption in the body and other safety concerns.

Elderly Man Reading Supplement Bottle

CL Answer

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

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

Box of Vitamins and Supplements

CL Answer

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.

Supplement Interactions With Antibiotics -- man reading prescription bottle instructions

CL Answer

What is the difference between the "Best By" date and the "Date of Manufacture" on a supplement label? How do I know how long my supplement will last before it "goes bad"?

To understand if your vitamins and supplements expire, learn more about the "Best By" and "Date of Manufacture" dates on labels.

Blue Supplement Bottle with Best By Date on Lid

Clinical Update

4/27/2019

Probiotic for Diverticulitis

Giving a specific probiotic to people hospitalized for acute diverticulitis was found to reduce pain, inflammation, and the duration of their hospital stays. Get the details in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks for probiotics.

Clinical Update

12/21/2013

Probiotic Significantly Reduces Antibiotic-Associated Diarrhea

A new study using a combination of probiotic organisms reduced the incidence of diarrhea by half among hospitalized individuals receiving antibiotics. Two doses were tried, and the higher dose was more effective. For details about this probiotic and how it was taken, along with additional information and our tests of probiotics, see the updated Probiotic Supplements Review >>    

Clinical Update

1/02/2011

Probiotics and Irritable Bowel Syndrome (IBS)

A recent study of children with IBS found that eight weeks of treatment with a probiotic greatly reduced the frequency and severity of abdominal pain. See the Probiotic Supplements Review for the type and dose of probiotic used and more >>

Clinical Update

8/11/2013

New Probiotic Study

A new study raises questions about the efficacy of taking probiotics to reduce the occurrence of antibiotic-associated diarrhea. For more details, as well as test results and comparisons for 29 probiotic supplements, see the updated Probiotic Supplements Review >>   

Clinical Update

11/16/2018

Probiotic Lowers Eczema Risk in Children

The risk of eczema in children was reduced by 54% when a specific probiotic was taken by mothers during pregnancy and then by their infants, according to a new study. The probiotic also reduced the incidence of gestational diabetes among the mothers. For details, see the What It Does section of the Probiotic Supplements Review. (Also see our Top Picks for probiotics.)

Clinical Update

9/21/2019

Probiotic for the Urinary Tract?

Does taking a popular double-strain probiotic reduce the level of pathogenic microbes in the urinary tracts of women? See what a recent study found in the section about Vaginal bacterial infections of the Probiotic Supplements Review. Also see our Top Picks among probiotics.

Clinical Update

8/16/2016

Inulin for Constipation

A small study among men and women with constipation found that inulin, a type of prebiotic, was able to modestly increase the frequency of bowel movements in men and women with constipation. For details, evidence for other uses of prebiotics and our tests of products, see the Probiotics Supplements Review >>

Clinical Update

6/29/2019

Popular Probiotic -- What's In a Name?

Does the popular probiotic VSL#3 contain a different formula than used in the clinical studies supporting its benefits? Find out in the What to Consider When Buying section of the Probiotics Supplements Review. Also see our Top Picks for probiotic supplements.

Clinical Update

9/27/2016

Probiotic Speeds Recovery From Fracture

A probiotic increased the speed of recovery from bone fracture in older men and women. For details, including dosage, see the "What It Does" section of the Probiotics Supplements Review >>

Clinical Update

1/20/2015

Probiotic Reduces Antibiotic-associated Diarrhea

A yogurt containing a combination of probiotic species was found to dramatically reduce the occurrence of mild and severe diarrhea in children being treated with antibiotics primarily for ear and throat infections. Probiotics have also been shown to have similar benefits in adults. For more details, see the Probiotic Supplements Review >> 

Clinical Update

3/11/2017

Prebiotics for Appetite Control?

A study suggests that a prebiotic supplement may be helpful for appetite control — although more research is needed. Prebiotics fuel the growth of beneficial bacteria in the gut. For more information about the study and prebiotics (including how to get prebiotics from foods), see the "Prebiotics" section of the Probiotics Supplements Review (which includes our tests of products) >>

Clinical Update

10/25/2014

Probiotics Reduce Cholesterol / Improve Liver Function

Adding probiotic organisms to yogurt appeared to reduce LDL ("bad") cholesterol in a study of people with nonalcoholic fatty liver disease, a common condition. Levels of liver enzymes also improved and more weight loss occurred when people ate the probiotic yogurt, in contrast to those who ate regular yogurt. The probiotic organisms used in this study are found in several products recently tested by ConsumerLab.com. See the details in the Probiotic Supplements Review >> 

Clinical Update

8/02/2015

Prebiotics for Immune Health

Prebiotics are complex sugars which can support the growth of probiotic organisms in the gut. A recent study reported a specific type of prebiotic increased amounts of beneficial bacteria and improved certain markers of immune function in older men and women. Get the details, including dosage, plus our tests of popular probiotics and prebiotics in the Probiotic Supplements 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

10/27/2015

Prebiotic Helps With Weight

A certain prebiotic was found to increase the amount of weight men and women lost while on a calorie-restricted diet. For details, including brand and dosage, plus our tests of popular probiotics and prebiotics, see the Probiotic Supplements Review >>

Clinical Update

12/17/2014

Probiotic Reduces GI Pain in IBS

A yeast-based probiotic was recently shown to significantly reduce abdominal pain and discomfort among people with irritable bowel syndrome (IBS). The most notable effect occurred after 4 weeks of use. Other studies, typically using bacterial probiotics, have also shown some benefit in IBS. For details, see the Probiotic Supplements Review >> 

Clinical Update

2/21/2015

Probiotic Prevents Bloating from Proton Pump Inhibitor (PPI)

Acid-blocking PPI drugs, such as Prilosec (omeprazole) and Protonix (pantoprazole) may cause people to experience bloating and other unpleasant bowel symptoms, possibly due to overgrowth of bacteria in the intestine. A recent study suggests that taking a probiotic may help prevent these symptoms from occurring. For more details, as well as our reviews of popular probiotics, see the Probiotic Supplements Review >> 

Clinical Update

6/21/2015

Probiotic Foods and Social Anxiety

A new study shows that consumption of fermented foods like yogurt and kefir (which are likely to contain probiotic organisms) was associated with lower levels of social anxiety. This suggests that such foods may serve as a low-risk intervention for reducing social anxiety. More about the study is found in the Probiotics Review >>

Clinical Update

7/08/2015

Probiotic Lowers Triglycerides

Although past studies have not found probiotics to lower triglyceride levels, a recent study found a combination of two probiotic strains significantly decreased triglycerides in men and women with moderately high levels. More details, including dosage, are found in the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

8/21/2018

Probiotic Concern

While probiotics are generally safe, they can cause severe illness in people with certain medical conditions. There have been many case reports, including one published this month. For details see the Concerns and Cautions section of the Probiotic Supplements Review.

Clinical Update

3/02/2016

Probiotic Helps with IBS

A probiotic was found to improve many symptoms of irritable bowel syndrome in a recent study. Studies with other probiotics have also shown benefits, but be aware that the choice of probiotic seems to depend on the type of IBS. Get the details, as well as our quality ratings, in the Probiotic Supplements Review >>

Clinical Update

4/30/2016

Probiotic for Fat Loss

A new study found that a probiotic decreased body fat in overweight adults, without diet or exercise. The probiotic in the study differs from many on the market in an interesting way. Get more information about this and other studies with probiotics, as well as our tests of products, in the Probiotic Supplements Review >>

Clinical Update

6/23/2018

Probiotics for Bones

Can taking a daily probiotic help reduce bone loss? Find out what a year-long study showed in the Bone density and fractures section of the Probiotic Supplements Review. (Also see our Top Picks among probiotic supplements.)

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

10/08/2019

Caution With Probiotic & Surgery

Use of a popular probiotic around the time of abdominal surgery increased the rate of re-admission to the hospital after surgery, according to a recent study. For details, see the What It Does section of the Probiotic Supplements Review. Also see our Top Picks for probiotics.

Clinical Update

5/29/2020

Probiotic to Reduce Tooth Staining

A probiotic was tested to see if it could reduce the occurrence of black stains (a type of dental plaque) on teeth. Find out if it worked in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks among probiotics.

Clinical Update

11/22/2016

Probiotic for Bloating and Abdominal Discomfort?

Probiotics can help with a range of gastrointestinal issues, but a recently published, large clinical trial found that a popular probiotic was only slightly helpful to people with a history of abdominal discomfort and bloating. Get the details in the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

11/06/2018

Lower Risk of Heart Disease with Fermented Dairy Foods

A study has shown a lower risk of heart disease to be associated with consumption of fermented, rather than non-fermented, dairy foods. However, only a certain type of fermented dairy was associated with the benefit. For details, see the Fermented Dairy section of the Probiotics Review. (Also see our Top Picks among probiotic products.)

Clinical Update

3/18/2022

Colostrum

In response to our recent article about bovine colostrum, we received and answered the following questions this week:

Should bovine colostrum be used with probiotics to improve gut health?

Does collecting bovine colostrum for use by people reduce the colostrum supply for newborn calves?

Clinical Update

5/27/2022

Prebiotics for Reducing Appetite?

Can adding prebiotics (such as fructooligosaccharides (FOS) or partially hydrolyzed guar gum (PHGG)) to meals help increase satiety or reduce appetite? Find out what a recent study showed in the All About Prebiotics section of the Probiotics Supplements Review.

Clinical Update

6/17/2022

Probiotic for Depression?

Did a popular probiotic blend help people with severe depression? See what a recent study found in the Anxiety and Depression section of our Probiotics Supplements Review.

Also see our answer to the question: What are the best supplements for depression and anxiety?

Clinical Update

6/24/2022

Probiotic for Antibiotic-Associated Diarrhea in Kids?

Did taking a probiotic reduce the risk of antibiotic-associated diarrhea in children? Find out what a recent study showed in the Antibiotic-associated diarrhea section of our Probiotics 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

12/20/2020

Probiotic for Protein Absorption?

Can a probiotic improve the absorption of amino acids from protein supplements? Find out what a recent study showed in the What It Does section of our Probiotic Supplements Review. Also, see our Top Picks for probiotics.

Clinical Update

5/01/2021

Does Kefir Lower Cholesterol?

Can drinking kefir that contains probiotics, decrease LDL cholesterol or triglyceride levels in people with metabolic syndrome? See what a new study found the Cholesterol-Lowering section of our Probiotic Supplements Review. Also see our Top Picks among probiotic supplements and drinks.

Clinical Update

9/12/2020

Probiotic for Eczema

Can applying a probiotic to the skin reduce eczema in children? Find out what a recent study showed in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks for probiotics.

Clinical Update

8/10/2021

Probiotic for Indigestion?

Can taking a probiotic with a meal decrease indigestion, gas or stomach pain after eating? See what a new study found in the What They Do section of our Probiotic Supplements Review. Also, see our Top Picks among probiotics for gastrointestinal symptoms and other uses.

Clinical Update

1/18/2022

Probiotics for COVID-19 Symptoms?

Can a probiotic help resolve COVID-19 symptoms? Learn what a recent study showed in the COVID-19 section of our Probiotic Supplements Review.

News Release

2/24/2019

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

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

News Release

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.

News Release

2/24/2018

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.

Clinical Update

6/30/2013

Probiotic for Irritable Bowel Syndrome?

A popular probiotic given in a yogurt appeared to reduce symptoms in people with irritable bowel syndrome. However, people taking a yogurt without the probiotic did just as well, if not better, over time, raising doubt about the value of the probiotic. For more details, as well as test results and comparisons for 29 probiotic supplements, see the updated Probiotic Supplements Review >>

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

CL Answer

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

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

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

CL Answer

How are you staying healthy during the coronavirus pandemic?

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

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

CL Answer

Are gummy vitamins better or worse than pills?

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

Problems With Gummy Vitamins -- bottle of gummy vitamins

Clinical Update

10/21/2012

Probiotic Helps Preterm Infants

Giving preterm infants a small amount of a probiotic improved their feeding and decreased their time in the hospital compared to infants not given the treatment. Learn more about this probiotic and other probiotic supplements for children and others in the Probiotic Supplements Review which includes our product tests. More >>

Clinical Update

4/20/2014

Probiotic Helps a Little with Allergy

Among people already taking a daily antihistamine, adding a daily probiotic provided a small, additional benefit -- particularly with ocular (eye) symptoms, according to a new study.  For more information about the probiotic used, and our tests of probiotic supplements, see the updated Probiotic Supplements Review >>   

Clinical Update

4/20/2014

Probiotic Not Always Useful in Infant Colic

A month ago, we reported on a study that showed a probiotic could help prevent colic in infants. A new study, however, shows that the same probiotic given to infants who already have colic does not help more than placebo. For more details, and our tests of probiotic supplements, see the updated Probiotic Supplements Review >>

Clinical Update

10/13/2013

Probiotic Helps Prevent Recurrence of Diverticular Disease

A new study found a major reduction in the recurrence of symptomatic diverticular disease when people were given a specific probiotic. Further reduction occurred with a combination of the probiotic and a prescription medication. For details about the treatment, including dosage, and our tests of probiotic supplements, see the updated  Probiotic Supplements Review >>     

CL Answer

Is it true that yogurt and kefir can trigger migraines?

Learn about the risks of migraines and headaches from yogurt, kefir and other dairy products.

Yogurt & Dairy Causing Migraines -- women with migraine headache, head pain

CL Answer

Is it okay to crush a tablet and consume the powder or add the powder to food, rather than swallowing the tablet whole?

Find out if it is safe to crush supplements and ingest the powder with food or if it is better to swallow the tablet whole.

Whole Tablets and Crushed Tablet on Blue Table

Clinical Update

1/31/2016

Probiotic May Help Prevent ADHD

A study found that none of the children given a specific probiotic around infancy (as well as to their mothers) developed attention deficit hyperactivity disorder (ADHD), compared to 14% of those given a placebo. Details about this preliminary but intriguing study and the commonly-available probiotic used are found in the Probiotic Supplements and Kefirs Review >>

Clinical Update

5/12/2021

Probiotic for Autism?

Can a probiotic supplement improve symptoms of autism spectrum disorder? Find out what a recent study showed in the What It Does section of our Probiotic Supplements Review. Also, see our Top Picks for probiotic supplements.

Clinical Update

5/27/2013

Probiotic Reduces Abdominal Fat

A study found that giving overweight people a strain of probiotic as part of a milk drink led to reductions in abdominal fat over 12 weeks. Those receiving the drink without the probiotic had no improvement. Get details in the updated Probiotic Supplements Review >>

Clinical Update

9/07/2019

Probiotic to Trim Belly Fat?

Can a probiotic reduce abdominal fat? See what studies are showing, including the latest surprising results, in the Weight section of the Probiotic Supplements Review. Also see our Top Picks for probiotic supplements.

Clinical Update

5/30/2018

Probiotic Effective for People With Mania

A daily probiotic was shown to greatly reduce the risk of rehospitalization for acute mania among people recently hospitalized for this condition. The probiotic contained strains common in products that ConsumerLab has tested and reviewed. For details, see the What It Does section of the Probiotic Supplements Review.

Clinical Update

10/24/2015

Probiotic Helps with Constipation

A recent study found that taking a particular probiotic twice a day after meals significantly increased the number of bowel movements in people with chronic constipation. For details about the probiotic and dose, see the Probiotic Supplements Review >>

Clinical Update

5/29/2014

Probiotic Gum for Throat Infections

A gum containing a probiotic has been found to significantly reduce the incidence of throat infections in children and has been approved to promote oral health and reduce bad breath. For more details, as well as our tests of probiotic supplements, see the update in the Probiotic Supplements Review >> 

Clinical Update

5/25/2014

Probiotic for IBS Symptoms

A recent study found that a multi-strain probiotic reduced certain symptoms of irritable bowel syndrome (IBS). Get the details, as well as our tests of probiotic products, in the updated Probiotic Supplements Review >> 

Clinical Update

2/02/2014

Probiotic Helps Women Shed Pounds

Recently, a study found that women on a reduced-calorie diet lost significantly more weight if they took a particular probiotic than women on the same diet who took a placebo. Get details about the probiotic used and the dosage in the Probiotic Supplements Review >> 

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

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

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

Women Holding Glass in One Hand and Vitamins in the Other

CL Answer

What are the health benefits of manuka honey, and is it safe?

Manuka honey health benefits, how it differs from common, store-bought honey, safety, evidence for using manuka honey for wounds, sore throat and cough, constipation and more.

Health Benefits of Manuka Honey -- jar of manuka honey

CL Answer

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

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

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

CL Answer

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

CL Answer

Which supplements help reduce flatulence (gas), and are there any that make it worse?

Find out which supplements may help reduce flatulence (gas), and learn which supplements or foods may worsen symptoms of flatulence.

Older woman sitting on her bed and holding her stomach due to gas and bloating

CL Answer

What are the health benefits of bovine colostrum and is it safe?

Bovine colostrum is promoted for boosting immunity, preventing and treating diarrhea, and improving gut health, but does it really work? See the clinical evidence for bovine colostrum, including doses that have been used, as well as safety concerns, cost considerations, and the difference between regular bovine colostrum and hyperimmune bovine colostrum.

Bovine colostrum powder and capsule supplements

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?

Clinical Update

4/20/2021

Probiotic for Rheumatoid Arthritis?

Can taking a probiotic reduce joint swelling in rheumatoid arthritis? See what a new study found in the What It Does section of our Probiotic Supplements Review.

Clinical Update

5/15/2021

Misleading Kefir Claims

Recent testing of several popular kefir beverages in the U.S. found that none contained their claimed amount of live probiotic cells -- although a popular yogurt did. See the results, by brand, in the Kefir section of our Probiotic Supplements Review. Also see our Top Picks among probiotic supplements and drinks.

Clinical Update

3/25/2022

Probiotic for Oral Health?

Can a probiotic lozenge decrease cavity risk, tooth plaque, and/or staining? See what the latest research shows in the What It Does section of our Probiotic Supplements Review.

Clinical Update

1/20/2013

More Probiotic Concerns

According to a published case report, two women recently developed a severely debilitating condition ("eosinophilic syndrome") two to four weeks after taking what appears to be the same "new" probiotic supplement. It's not yet known if these are isolated cases or are there more to come. For more information, see the recent update to the Probiotic Supplements Review >>

Clinical Update

9/02/2015

Probiotic Approved for Throat Infections

A branded probiotic lozenge can help reduce the frequency of certain throat infections, including strep, according to a health claim recently approved in Canada. Details about the product (which is also available in the U.S.) are found in the Probiotic Supplements Review >>

Clinical Update

12/07/2014

Prebiotic for Reducing Anxiety?

We've reported in the past that some probiotic bacteria may help reduce anxiety. A new study suggests that one type of prebiotic powder (which helps probiotic bacteria grow) has a related beneficial effect. See the update in the Probiotic Supplements Review >> 

Clinical Update

3/04/2017

Probiotic for Allergy

A recent study showed that taking a probiotic during allergy season reduced symptoms more than did a placebo — although not by much. For details, see the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

10/06/2015

Probiotic Improves IBS Symptoms

A probiotic significantly improved symptoms in men and women with a particular type of irritable bowel syndrome (IBS), according to a recent study. Get the details, including dosage, and our tests of popular products, in the Probiotic Supplements Review >>

Clinical Update

4/15/2017

Probiotic Reduces Diabetes Risk In Pregnancy

Taking a certain type of probiotic during pregnancy reduced the risk of gestational diabetes, according to a new study. For details see the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

9/27/2017

Changed VSL#3 Probiotic?

VSL#3 is a popular probiotic, but a new study suggests that the currently marketed product may be somewhat different and not have all the same effects as the earlier product. For details, see the ConsumerTips section of the Probiotic Supplements Review >>

Clinical Update

10/18/2017

Probiotic Reduces Colic

A widely sold probiotic was able to reduce by half the amount of crying in infants with colic, according to a placebo-controlled study. For details, see the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

9/22/2015

Probiotic Increases Bowel Movement Frequency

A certain probiotic increased the number of weekly bowel movements in healthy men and women who reported a low frequency. Get the details, including brand and dosage, plus our tests of popular products in the Probiotic Supplements Review >>

Clinical Update

11/13/2018

Illness From Probiotic

Some people are vulnerable to serious illness related to probiotic use. Get the details of a recently reported case in the Cautions and Concerns section of the Probiotic Supplements Review.

Clinical Update

12/19/2017

Probiotic for Dermatitis

Atopic dermatitis is a recurrent, itchy inflammation of the skin. Taking a daily probiotic mixture was found to significantly reduce symptoms and the need for topical steroids in children with atopic dermatitis. Details are in the "What It Does" section of the Probiotic Supplements Review >>

Clinical Update

2/02/2019

A Probiotic for Migraine

Use of a particular probiotic for several weeks was found to modestly reduce the frequency and severity of migraine headaches. Get the details in the What It Does section of the Probiotic Supplements Review.

Clinical Update

8/30/2017

Probiotic for Dandruff?

A probiotic was shown to significantly reduce the signs and symptoms of dandruff in a placebo-controlled, 2-month study. See the "What It Does" section of our Probiotic Supplements Review for details >>

Clinical Update

5/26/2017

Probiotic Reduces Depression in IBS

A probiotic significantly decreased depression in men and women with irritable bowel syndrome (IBS), according to a recent study. For details, see the "What It Does" section of the Probiotic Supplements Review >>

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.

Supplements for Crohn's Disease -- Crohn's Disease Written on Notepad, Pills

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

News Release

2/24/2017

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.

CL Answer

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

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

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

CL Answer

Is it true that iodine can cause acne or other skin problems?

Information on iodine causing acne and other skin problems such as rashes and hives. ConsumerLab.com's answer explains.

Iodine Causing Acne & Rashes -- box of iodized salt

CL Answer

How do the COVID-19 vaccines compare in terms of efficacy, safety and side effects? How, when and where do I get the COVID-19 vaccine?

Find out how the COVID-19 vaccines from Pfizer and Moderna compare and learn how when and where you can get the COVID-19 vaccine.

Older woman getting an injection

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 

News Release

7/29/2016

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

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

Clinical Update

6/22/2019

Yogurt and Colorectal Cancer

Does regular consumption of yogurt affect the risk of colorectal polyps and colorectal cancer? Find out what studies are showing in the Fermented Dairy Foods section of the Probiotic Supplements Review.

Clinical Update

11/24/2018

Yogurt & High Blood Pressure

Higher consumption of yogurt was associated with a lower risk of developing high blood pressure in a recent analysis. Risk was further reduced when yogurt consumption was part of a particular, healthful diet. For details, see the Fermented Dairy Foods section of the Probiotic Supplements Review.

Clinical Update

6/25/2019

Prebiotic for Insulin Sensitivity

Does consuming a prebiotic improve insulin sensitivity in overweight people? See what a study recently found in the All About Prebiotics section of the Probiotic Supplements Review.

Clinical Update

11/08/2022

Synbiotic for Constipation?

Can supplementing with a synbiotic (probiotic + prebiotic) increase bowel movements in children with constipation? Find out what research showed in our CL Answer about this brand of synbiotics.

Clinical Update

5/20/2022

What Are Postbiotics?

What are postbiotics and are they helpful? Find out in the Postbiotics section of our Probiotic Supplements Review.

CL Answer

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

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

None

CL Answer

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

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

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

CL Answer

How can I find out where a vitamin or supplement is made and where its ingredients come from, such as China or the USA?

Learn more about the manufacturing, distribution, and ingredients of a supplement, including FDA regulations.

How to Find Out Where A Supplement Is Made -- Supplement Label

CL Answer

Are "medical foods" such as VSL 3, proven to work? Does the FDA approve them?

What are medical foods? Info on whether they work, if they are approved by the FDA, and how they differ from regular foods and supplements. ConsumerLab.com's answer explains.

Woman Researching Supplements on Laptop

News Release

2/24/2016

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.

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

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

Product Review

Electrolytes & Sports Drinks Review

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

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

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.

Supplements for Memory -- doctor holding a model of a brain and fish oil capsule

CL Answer

Can white kidney bean extract really help me lose weight?

Does white kidney bean extract help promote weight loss? Find out more including evidence from clinical studies and dosage.

White Kidney Bean Extract and Weight Loss -- White kidney beans

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.

CL Answer

Do any supplements help with gum disease or periodontitis?

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

Smiling Woman Taking White Supplement with Glass of Water

CL Answer

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

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

Supplements for Hair Loss -- woman looking at hairbrush

Recalls & Warnings

6/08/2021

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

3/05/2015

ConsumerLab.com Shows Chinese Consumers What's Really in Foods and Supplements -- U.S. Testing Company Expands to China, Launches cn.ConsumerLab.com

White Plains, New York, March 5, 2015 — Since 1999, American consumers and doctors have turned to ConsumerLab.com (CL) to find out which nutritional products are highest in quality based independent testing. Today, CL launched a Chinese-language website cn.ConsumerLab.

Recalls & Warnings

8/18/2019

Some Align Probiotics Sold on Amazon Were Fake, Company Warns

Some Align probiotic supplements sold in the recent past on Amazon could be counterfeit, according to articles published last month in USA Today and Wired. The probiotics may have been sold through third-party sellers on Amazon.

News Release

2/28/2015

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

2/13/2014

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.

Recalls & Warnings

6/09/2020

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

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

Recalls & Warnings

7/10/2021

FDA Warns Seller of Omega XL

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

Recalls & Warnings

8/11/2022

Problems With Supplements on Amazon

More than 50% of 30 top-listed immune support supplements purchased on Amazon.com in May of last year were found to list ingredients that could not be found in them with testing, according to a recent report (Crawford, JAMA Network Open, 2022).

Recalls & Warnings

5/20/2015

Gluten Found in More Than Half of Popular Probiotic Supplements Tested

Tests of 22 popular probiotic supplements revealed that 12 contained detectable amounts of gluten, according to researchers at the Celiac Disease Center at Columbia University Medical Center.

Recalls & Warnings

10/17/2012

Maker of Probiotic Supplement Warned for Manufacturing Violations

On September 28, 2012, the FDA issued a warning letter to dietary supplement manufacturer James G. Cole Inc.

Recalls & Warnings

1/13/2022

Senna Laxative Recalled Due to Microbial Contamination

On January 11, 2022, Lohxa LLC issued a voluntary recall of one lot of Senna Syrup 8.

Recalls & Warnings

12/22/2021

Unauthorized Rapid Antigen Test Gets FDA Warning

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

Recalls & Warnings

12/01/2021

FDA Warns Seller of Saffron Supplements

On November 18th, 2021, the FDA issued a warning letter to Saffron Health Sciences following a review of the company's website, social media, and Amazon product listings, which found statements made about the company's products Crocin Rich, Crocin Rich II, and Crocin Rich ...

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.

Recalls & Warnings

4/27/2022

FDA Warns Manufacturer of Topical Antiseptic Products for COVID Claims

On April 19th, 2022, the FDA issued a warning letter to Kleenhanz, LLC following a review of the company’s website and social media which found statements about the company’s Kleenhanz Towelettes topical antiseptic products to be drug claims.

News Release

1/31/2013

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

11/02/2021

Probiotic Recalled Due to Risk of Bacterial Contamination

On October 29, 2021, Mary Ruth's issued a recall of two lots of Mary Ruth's Liquid Probiotic for Infants due to potential contamination with Pseudomonas aeruginosa. This bacterium can cause infection in people who are immunocompromised, and rarely, in infants.

Recalls & Warnings

11/17/2021

Mountain Meadow Herbs "Cleanse" Recalled, Risk of Injury from Exploding Bottle

On November 17, 2021, Mountain Meadow Herbs issued a recall of 54 bottles of Mountain Meadow Herbs brand Candida Flush due to the bottles becoming pressurized over time in storage.

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.

News Release

2/05/2012

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

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

News Release

1/17/2012

Do African mango supplements help with weight loss? ConsumerLab.com investigates the evidence

White Plains, New York — January 17, 2012 — African mango supplements are touted to help shed pounds, but do they really work? "Long-term weight loss with African mango has not been proven," said says Tod Cooperman, M.D., President of ConsumerLab.

News Release

1/31/2011

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

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

News Release

6/09/2010

ConsumerLab.com tests "greens" and "whole foods" products; Most offer healthful nutrients, but some found contaminated with heavy metals

WHITE PLAINS, NEW YORK — JUNE 9, 2010 — "Greens" powders, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, were recently tested by ConsumerLab.com for potential contamination with heavy metals and pesticides. ConsumerLab.

News Release

1/31/2010

Fish oil becomes most popular dietary supplement in ConsumerLab.com survey; Vitamin D and resveratrol use surge

WHITE PLAINS, NEW YORK — FEBRUARY 1, 2010 — Among people who use multiple dietary supplements, fish oil/omega-3 supplements now top multivitamins in popularity, according to a recent survey by ConsumerLab.com.

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

7/06/2018

Prescript-Assist Probiotic Recall Expanded

On July 6, 2018, LL's Magnetic Clay, Inc., expanded its original recall of Prescript-Assist, a "broad spectrum probiotic and prebiotic" supplement, because it may contain undeclared almonds, crustaceans, dairy, casein, eggs, and peanuts.

Recalls & Warnings

5/09/2022

Natural Organics Keto Capsules Recalled Due to Gluten

On March 6, 2022, Natural Organics, Inc. issued a recall of four lots of NaturePlus Keto Living Sugar Control Capsules that were found to contain gluten.

Recalls & Warnings

6/02/2022

Prune & Senna Softgels Recalled Due to Undeclared Peanuts

On March 26, 2022, Indiana Botanic Gardens Inc. issued a voluntary recall of one lot of Botanic Choice brand Prune & Senna Softgels because the product contained undeclared peanuts.

Recalls & Warnings

6/29/2018

Prescript-Assist Probiotic Recalled

On June 29, 2018, LL's Magnetic Clay, Inc., issued a recall of certain lots of Prescript-Assist, a "broad spectrum probiotic and prebiotic" supplement, because they may contain undeclared almonds, crustaceans, dairy, casein, eggs, and peanuts. 

News Release

11/16/2009

ConsumerLab.com finds many probiotics don't deliver listed ingredients

White Plains, New York November 16, 2009 — Many probiotic supplements do not contain the number of viable organisms listed on their labels according to a new report from ConsumerLab.com.

News Release

8/04/2009

Most vitamin E supplements pass testing, but what seems natural may be synthetic according to ConsumerLab.com -- New review of vitamin E supplements, oils, and creams released today

White Plains, New York — November 16, 2009 — Many probiotic supplements do not contain the number of viable organisms listed on their labels according to a new report from ConsumerLab.com.

News Release

4/28/2009

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

12/12/2006

Probiotic supplements grow in popularity but viable bacteria missing in many — ConsumerLab.com cautions consumers to select probiotics carefully and store them properly

WHITE PLAINS, NEW YORK — DECEMBER 12, 2006 — Sales of supplements containing beneficial organisms (probiotics) have grown rapidly, but a new test report from ConsumerLab.com shows that 44% contained fewer viable organisms than claimed or generally known to be effective.

News Release

11/17/2006

ConsumerLab.com responds to vitamin industry claim to be "vindicated" in defamation case

WESTCHESTER, NEW YORK — November 17, 2006 — ConsumerLab.com (www.consumerlab.com), an independent evaluator of health and nutrition products, responded to a press release issued today by the vitamin lobbyist/trade group called the Council for Responsible Nutrition (CRN).

News Release

11/13/2006

Tests of "muscle" supplements finds some "weak" products but most contain expected creatine, HMB, or amino acids — Review of muscular enhancement supplements published by ConsumerLab.com

WESTCHESTER, NEW YORK — MONDAY, NOVEMBER 13, 2006 — Bodybuilders and athletes often turn to supplements to enhance muscle size and strength.

News Release

10/20/2006

ConsumerLab.com report on CoQ10 supplements finds quality high but large range in suggested dosage

WHITE PLAINS, NEW YORK — OCTOBER 20, 2006 — New test results from ConsumerLab.com for CoQ10 supplements show that all of the products selected contained amounts of ingredient consistent with their labels.

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

9/19/2006

DHEA supplements, touted for anti-aging and strength, reviewed by ConsumerLab.com — Testing finds one brand with 215% of the labeled amount

WHITE PLAINS, NEW YORK — SEPTEMBER 19, 2006 — New tests of supplements containing the hormone DHEA found most to contain their claimed amounts of the controversial ingredient, but one provided 215% of its stated amount, the testing company ConsumerLab.com reported today.

News Release

8/15/2006

Over 70% of herbal sleep supplements fail tests for quality by ConsumerLab.com — Results for 16 valerian products released today

WHITE PLAINS, NEW YORK — AUGUST 15, 2006 — Most of the valerian dietary supplements recently tested by ConsumerLab.com were low in potency and/or contaminated, the testing company reported today. Valerian, an herbal sleep aid, accounts for approximately $50 million in sales in the U.S.

News Release

8/01/2006

ConsumerLab.com evaluates cholesterol-lowering supplements — Test results available for over 90 products; Review of nine popular ingredients

WHITE PLAINS, NY — AUGUST 1, 2006 — ConsumerLab.com has released a major new review of dietary supplements used to improve cholesterol and triglyceride levels.

News Release

6/22/2006

What's in a garlic supplement? Consumerlab finds few brands have it right and many mislead

WESTCHESTER COUNTY, NEW YORK — JUNE 22, 2006 A new study of garlic supplements by ConsumerLab.com found that only 6 of the 14 products it selected contained the amount of garlic expected from the labels and met quality standards.

News Release

5/24/2006

Problems persist with ginseng supplements — ConsumerLab.com finds nearly half of products lack ingredient or contaminated

WHITE PLAINS, NEW YORK — May 24, 2006 — ConsumerLab.com has released test results for dietary supplements made with ginseng, a popular herb promoted for vitality and the treatment or prevention of a range of medical conditions.

News Release

4/26/2006

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

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

News Release

3/13/2006

ConsumerLab.com reports on supplements for bone health containing calcium and vitamin D— Results posted for 32 supplements for adults and children; One found contaminated with lead

WESTCHESTER COUNTY, NEW YORK — MARCH 13, 2006 — ConsumerLab.com announced test results today from its new Product Review of Supplements for Bone Health covering 32 adult and children's products containing calcium and vitamin D. Sales of calcium supplements in the U.S.

News Release

2/06/2006

ConsumerLab.com finds most prostate supplements have correct ingredients, but three fail testing — Results posted for 22 supplements containing saw palmetto and beta-sitosterol

WESTCHESTER COUNTY, NEW YORK — FEBRUARY 6, 2006 — ConsumerLab.com announced test results today from its new Product Review of Prostate Supplements.

News Release

1/25/2006

Sexual enhancement supplements analyzed by Consumerlab.com

WESTCHESTER COUNTY, NEW YORK — JANUARY 25, 2006 — ConsumerLab.com announced today that it found only six out of eleven supplements used for sexual enhancement to contain key ingredients listed on their labels and meet other quality criteria.

News Release

1/03/2006

Tests of memory enhancing supplements by ConsumerLab.com reveals lead in some ginkgo

WESTCHESTER COUNTY, NEW YORK — TUESDAY, JANUARY 3, 2006 — In its new test report on Memory Enhancement Supplements, ConsumerLab.com has revealed finding significant amounts of lead in certain products on the market.

Recalls & Warnings

5/03/2013

Maker of Probiotic, Iron and Folic Acid Supplements Warned For Manufacturing Violations

On April 17, 2013, the FDA issued a warning letter to Hillestad Pharmaceuticals USA, Inc.

Recalls & Warnings

2/02/2021

Seller of Aloe Products Warned for Claiming to Treat Joint Stiffness

On January 22, 2021, the FDA issued a warning letter to American Global Health Group, LLC following a review of the company's website, which found statements made about the company's products AloeCure VeraFlex, AloeCure Advanced Formula Capsule, AloeCure Pure Aloe Vera ...

News Release

8/31/2005

ConsumerLab.com testing of alpha lipoic acid supplements from Japan finds no ingredient in one product; Most others meet claims — Japanese consumers urged to research product quality

WHITE PLAINS, NY — ConsumerLab.com reported this week that among nine brands of alpha lipoic acid supplements it recently purchased in Japan and tested, one contained none of the popular ingredient and another contained only 81%.

Recalls & Warnings

9/08/2017

Probiotic for Infants Recalled Due to Potential Choking Hazard

On September 7, 2017, Garden of Life, LLC, issued a recall of Baby Organic Liquid, a liquid probiotic supplement for infants, because the product, as labeled, includes directions for use that may be misinterpreted and could pose a choking hazard due to the thickness of the liquid.

Recalls & Warnings

8/15/2020

FTC Warns 20 More Companies for Coronavirus Claims

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

Recalls & Warnings

6/20/2020

FTC Warns 30 More Companies for Coronavirus Claims

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

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

12/14/2004

ConsumerLab.com expands testing to Japan — Testing Organization Expands to Help Japanese Consumers Determine Quality of Health and Nutrition Products

WHITE PLAINS, NY — Tuesday, December 14, 2004 — ConsumerLab.com announced today that it would begin testing products sold in Japan. Its first report is due out in early spring. In the U.S. and Canada, ConsumerLab.

News Release

1/21/2003

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

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

News Release

12/30/2002

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

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

News Release

12/10/2002

Lupus patients cautioned about hormone supplement — ConsumerLab.com releases DHEA testing results online today

WHITE PLAINS, NY — December 10, 2002 — In its latest Product Review, ConsumerLab.com found that 3 of the 17 DHEA (dehydroepiandrosterone) supplement products it tested contained less than their claimed amounts of this hormone — one having less than one-fifth of what it claimed.

News Release

10/29/2002

Enormous variation found in strength of garlic supplements — most popular herb in U.S. — ConsumerLab.com releases results online today

WHITE PLAINS, NY — October 29, 2002 — ConsumerLab.com's Product Review of Garlic Supplements found strength to vary by as much as 1500% across products. Strength was based on each product's ability to generate allicin, a chemical associated with the efficacy of non-aged garlic.

News Release

9/24/2002

Problems found with most sexual enhancement supplements evaluated by ConsumerLab.com — Only 9 of 22 products pass independent review

WHITE PLAINS, NY — September 24, 2002 — ConsumerLab.com announced today that nearly 60% of products failed to pass its independent Product Review of Sexual Enhancement Supplements. Sexual dysfunction is estimated to affect 43% of women and 31% of men in the U.S.

News Release

8/07/2002

ConsumerLab.com finds some spoilage and inaccuracy among omega-3 and 6 supplements — List released of evening primrose, flaxseed and other GLA/ALA products that passed testing

WHITE PLAINS, NY — August 7, 2002 — ConsumerLab.com, an independent evaluator of health and nutrition products, released results today of its Product Review of Black Currant, Borage, Evening Primrose, and Flaxseed Oils: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids).

News Release

7/16/2002

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

6/25/2002

ConsumerLab.com reviews radioprotective Iodine pills in response to terrorist threats — Quality of products is high, but local access is poor

WHITE PLAINS, NY — June 25, 2002 — In response to the threat of terrorist attacks on U.S. nuclear facilities, ConsumerLab.com, an evaluator of health and nutrition products, today released a Product Review of Potassium Iodide/Potassium Iodate (Radioprotective Agents).

News Release

5/15/2002

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.

Recalls & Warnings

12/26/2010

Four Probiotic Products in Canada May Pose Serious Health Risks to Those with Milk or Soy Allergies

On December 24, 2010, Health Canada (the Canadian health ministry) advised consumers with milk or soy allergies that four probiotic natural health products are being voluntarily recalled from the market because they are labelled as not containing dairy (milk) and/or soy but may contain trace ...

Recalls & Warnings

7/10/2012

Children's Probiotics Recalled Due to Potential Salmonella Contamination

On July 9, 2012, Sedona Labs announced the voluntary recall of certain lots of iFlora Kids Multi-Probiotic and iFlora 4-Kids Powder distributed between 3/16/2011 and 5/3/2012 due to potential contamination with Salmonella.

Recalls & Warnings

8/04/2014

"Superfood" Greens Recalled Due to Salmonella Risk

On August 1, 2014, New England Greens dba Vibrant Health issued a recall of 10 lots of Green Vibrance and one lot of Rainbow Vibrance because they have the potential to be contaminated with Salmonella.

Recalls & Warnings

2/02/2018

Seller of Vitamin D, Omega-3's, Whey Protein & More Warned for Drug Claims

On January 24, 2018 the FDA issued a warning letter to Young Health Products, LLC following a review of the company's website which found promotional statements and testimonials made about the certain products, including Lugol's Solution 2%, Liquid Vitamin D3, Probimune, Flax Seed & Omega ...

Recalls & Warnings

4/29/2020

Benefiber Prebiotic Fiber Supplements Recalled Due to Possible Plastic Contamination

On April 28, 2020, GSK Consumer Healthcare recalled one lot of Benefiber Healthy Shape Prebiotic Fiber Supplement powder and four lots of Benefiber Prebiotic Fiber Supplement powder because they have the potential to be contaminated with green plastic pieces or shavings from bottle ...

Recalls & Warnings

11/10/2020

FDA Warns Seller of Digestive Enzymes, Nattokinase, and More

On October 27, 2020, the FDA issued a warning letter to World Nutrition, Inc.

Recalls & Warnings

12/30/2014

Maker of Probiotic Supplement Warned for Manufacturing Violations

On December 18, 2014, the FDA issued a warning letter to Wellmill LLC, dba Vitamix, following a facility inspection which found the company's products, including Butcher's Broom powder and Lactobacillus acidophilus powder (used as ingredients in a finished product which was not named) to be ...

Recalls & Warnings

6/07/2017

FDA Warns Seller of Probiotic and Omega-3 Supplements for Manufacturing Violations

On May 22, 2017, the FDA issued a warning letter to BioTE Medical, LLC following a facility inspection which found its products, including BioTE DIM, BiotTE Probiotic, BioTE Iodine Plus, and BioTE Omega 3 to be adulterated because they were prepared, packed, or held under ...

Recalls & Warnings

3/22/2016

NOW Foods Recalls Ginkgo & Other Supplements

On March 18, 2016, NOW Foods issued a recall of the following dietary supplements due to errors on the labels: 

Recalls & Warnings

11/27/2018

More Dog Food Recalled Due to Risk of Vitamin D Toxicity

On November 27, 2018, Sunshine Mills, Inc. issued a recall of select Evolve Puppy, Sportsman's Pride Large Breed Puppy and Triumph Chicken and Rice Dog Food because they may contain elevated levels of vitamin D.

Recalls & Warnings

11/06/2018

Dog Food Recalled After Reports of Vitamin D Toxicity

On November 2, 2018, Natural Life Pet Products and Nutrisca issued a recall of certain dry dog foods because they contain elevated levels of vitamin D. The elevated levels of vitamin D were found during an investigation into several reports of vitamin D toxicity by pet owners.

Recalls & Warnings

2/17/2018

FDA Warns Seller Reishi Mushroom Supplements

On February 7, 2018, the FDA issued a warning letter to Reishi D. International, Inc., following a facility inspection which found the company's Reishi D.

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 ...

Recalls & Warnings

11/21/2012

Maker of Probiotic and Sports Drinks Warned For Manufacturing Violations

On November 6, 2012, the FDA issued a warning letter to CocoKefir, LLC stating that the company's Tula's CocoKefir, Tula's Citrus CocoKefir, and Tula's Apple Cinnamon CocoKefir have been prepared, packed or held under conditions which violate Current Good Manufacturing Practices.

Recalls & Warnings

3/21/2013

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

10/05/2011

FDA Warns Nutrition Center Inc (Nutri-West) of Manufacturing Violations

The FDA published a Warning Letter dated September 9, 2011 to Nutrition Center Inc. (dba Nutri-West) informing the firm of manufacturing violations found during an inspection of the firm's facility in Douglas, Wyoming in April, 2011.

Recalls & Warnings

11/21/2012

Maker of Blood Pressure, Probiotic, Resveratrol and Hormonal Supplements Warned For Manufacturing Violations and Drug Claims

On November 2, 2012, the FDA issued a warning letter to Atrium, Inc. following a facility inspection which found a number of the company's dietary supplements to be adulterated or promoted as drugs.

Recalls & Warnings

5/14/2016

Xylitol in Supplements Poses Danger for Dogs

On May 12, 2016, the FDA warned consumers that xylitol, a popular sweetener found in chewable vitamins, chewing gum, breath mints, toothpaste and a variety of other products, is toxic to dogs.

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

11/21/2017

Bones and Packaged "Bone Treats" Dangerous for Dogs

Giving your dog real turkey or chicken bones, or packaged "bone treats" could lead to serious injury or death, the FDA recently warned pet owners. 

Recalls & Warnings

10/18/2017

Total Body Nutrition Warned for Banned Stimulant in Supplements

On September 28, 2017, the FDA issued a warning letter to Total Body Nutrition following a facility inspection which found some of the company's products to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary ...

Recalls & Warnings

9/28/2017

Seller of Prostate, Reishi Supplements Warned for Manufacturing Violations

On September 11, 2017, the FDA issued a warning letter to Vicare International (USA), Inc.

Recalls & Warnings

2/27/2018

Dog Treats, Food Recalled Due to Salmonella, Listeria Risk

The following dog treats and dog food are being recalled because they have the potential to be contaminated with Listeria monocytogenes or Salmonella, which can cause illness in pets who consume these products, as well as in pet owners who handle the contaminated products or touch ...

Recalls & Warnings

11/17/2014

Probiotic Powder Recalled

On November 14, 2014, Solgar, Inc. issued a voluntary recall of Solgar ABC Dophilus Powder (NET Wt. 1.75 oz (50 g)) because it was found to contain Rhizopus oryzae, a fungus which may cause Mucormycosis infection.

Recalls & Warnings

9/07/2012

Prebiotics Recalled For Salmonella Risk

On September 4, 2012, Eco Health, Inc. announced a recall of its florAlign Prebiotic Formula (Powder) due to the potential for the product to be contaminated with Salmonella.

Recalls & Warnings

12/10/2014

Risk of Fungal Infection from Probiotics in People with Weakened Immune System

On December 9, 2014, the FDA warned that supplements containing live bacteria or yeast have the potential to be contaminated with mold, and may pose a risk of potentially deadly fungal infection in immunocompromised persons.

Recalls & Warnings

9/05/2014

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

5/10/2013

Protein Extract Recalled for Undeclared Allergens

On May 6, 2013, Pure Herbs Ltd. issued a voluntary recall of Protein Extract because it contains undeclared milk and soy allergens.

Recalls & Warnings

11/19/2016

GNC Women's Multi Recalled Due to Undeclared Allergen

On November 16, 2016, Nutra Manufacturing, Inc. issued a recall of one lot of GNC Women's Ultra Mega Time Release multivitamin because it contains undeclared milk.

Recalls & Warnings

5/30/2015

Seller of Omega-3, Probiotics & SuperFoods Warned for Manufacturing Violations, Drug Claims

On May 4, 2015, the FDA issued a warning letter to Dr. Dennis Black, LLC.

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

4/29/2013

Recall: Multivitamin Containing Undeclared Milk

On April 26, 2013, Saratoga Therapeutics, LLC issued a recall of ebA Multivitamin Supplement because it may contain undeclared milk. The label describes the supplement as free of milk components.

Recalls & Warnings

8/27/2013

Immune Supplement Recalled Due To Undeclared Milk

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

Recalls & Warnings

9/10/2014

Seller of Joint Pain Supplement Warned for Drug Claims

On August 24, 2014, the FDA issued a warning letter to CreAgri, Inc., following a website review, which found statements made about the company's products, including Olivenol plus Easeflex, Olivenol plus Essence Capsules, and Olivenol plus Essence Elixer, to be drug claims.

Recalls & Warnings

2/05/2014

Maker of Digestive Health Supplement Warned For Manufacturing Violations, Drug Claims

On January 22, 2014, the FDA issued a warning letter to Intensive Nutrition Incorporated, following a facility inspection which found the company's digestive support supplement, Tanalbit, to be adulterated because it was prepared, packed, or held under conditions that violate Current Good ...

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

9/26/2014

FDA Warns Seller of Supplements and Chocolate Promoted to Treat Ebola

On September 23, 2014, the FDA issued a warning letter to Natural Solutions Foundation, following a review of the company's websites which found statements made about Silver Sol Nano Silver (also called The Silver Solution) and CBD Organic Dark Chocolate Bars (also called High Potency CBD Hemp Oil) ...

Recalls & Warnings

12/02/2014

Seller of Energy & Joint Supplements, Aloe, Silver and More Warned for Drug Claims

On November 24, 2014, the FDA issued a warning letter to Jansen Enterprises, LLC, dba HealthWorksUSA, following an inspection of the company's website which found statements made about Nutra Blast Natural Energy, Ionic Silver Water, Nutra Complete, and Nutra Gel to be drug claims. 

Recalls & Warnings

11/17/2014

Organic Brown Rice Flour Recalled

On November 14, 2014, Lundberg Family Farms issued a voluntary recall of certain bags of Eco-Farmed Brown Rice Flour and Organic Brown Rice Flour because they because it has the potential to be contaminated with Salmonella.

Recalls & Warnings

8/23/2015

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

8/11/2015

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

12/30/2014

Maker of Aloe, Weight Loss Supplements and More Warned for Manufacturing Violations, Drug Claims

On December 17, 2014, the FDA issued a warning letter to Dandy Day Corporation, following a facility inspection which found the company's products, including Aloe Pearl, Alfalo, Aloespring, Crave Away, Original Supreme Energy, Ener "G," Can G, Flora G, Flora G Plus, and Garolic, to be adulterated ...

Recalls & Warnings

1/23/2015

Maker of Vitamin Drinks Warned for Manufacturing Violations

On January 7, 2015, the FDA issued a warning letter to NYSW Beverage Brands, Inc.

Recalls & Warnings

1/21/2015

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

1/17/2015

Supplement Maker Warned for Manufacturing Violations

On August 5, 2014, the FDA issued a warning letter to Engineering Nutrition, following a facility inspection which found the company's products, which were not named, to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for ...

Recalls & Warnings

1/17/2015

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

2/21/2013

Pet Supplement Company Issues Recall Due To Potential Bacterial Contamination

On February 20, 2013, animal supplement company Nutri-Vet, LLC issued a recall of Nutri-Vet and NutriPet Chicken Jerky Products because they may be contaminated with Salmonella.

Recalls & Warnings

3/15/2013

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

11/06/2014

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

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

Recalls & Warnings

9/26/2014

Sellers of Essential Oils Warned for Claiming to Treat Ebola, Other Diseases

On September 22, 2014, the FDA issued a warning to Young Living following a review of websites, Pinterest, Facebook and Twitter accounts owned by Young Living distributors, which found statements made about the company's essential oils, including Thieves, Cinnamon Bark, Oregano, ImmuPower, ...

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

9/13/2013

Metagenics Warned For Misbranding of Medical Foods and Drug Claims

On August 13, 2013, the FDA issued a warning letter to Metagenics, Inc.