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Product Review
Nutrition Bars & Cookies Review (For Energy, Fiber, Protein, Meal Replacement, and Whole Foods)
Find the Best Nutrition Bar or Cookie. ConsumerLab Tests Reveals Not All Nutrition Bars and Cookies Contain What They Claim.
Product Review
Psyllium Fiber Supplements Review
Find the Best Psyllium Fiber Supplement and Avoid Lead.
Product Review
Prebiotic Supplements Review
You Can't Tell How Much Fiber Is Really In Most Prebiotics Without Testing
Product Review
Protein Powders, Shakes, and Meal Replacements Review
Find Out Which Protein Products Passed or Failed Our Tests
Product Review
Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)
Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.
Product Review
Dark Chocolates, Cocoa & Cacao Powders, Nibs, and Supplements Review -- Sources of Flavanols
Is Your Chocolate or Cocoa Healthful or Toxic? Find the Best Dark Chocolate, Cocoa Powder and Cocoa Supplements Based On Our Tests.
Product Review
Whole, Ground, Milled, and Cracker Flaxseed Review
High Levels of Cadmium Found in Flaxseed Products — Testing Expanded
Product Review
Oat Cereals Review
Find the Best Oatmeal, Oat Bran, Steel Cut Oats, & Cold Cereals. Popular Oat Cereals Tested -- Beware of Unexpected Gluten.
Product Review
Plant-Based Milks Review (Almond, Cashew, Coconut, Flax, Hemp, Macadamia, Oat, Pea, and Soy)
Find the Best Non-Dairy Milk Alternative. ConsumerLab Tests Reveal What's Really In Plant-Based Milks.
Product Review
Chia Seed Review — Whole, Ground, and Sprouted Seed, Seed Flour, & Supplements
Find the Best Chia Seeds, Sprouted Chia Powder, Flour, and Chia Supplements. Tests and Reviews of Chia Seeds & CL's Top Picks.
Product Review
Shelled Walnuts (Halves & Pieces)
See Our Top Picks for Walnuts
Product Review
Seaweed Snacks and Foods Review
Tests Reveal Seaweed Snack Risks
Product Review
Olive Leaf Extract Supplements Review
Learn What Olive Leaf Does and the Best Brands
Product Review
Electrolytes & Sports Drinks Review
See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes
Product Review
Tuna, Salmon, Sardines & Herring Review (Canned and Packaged)
None
Product Review
Lion's Mane and Chaga Supplements Review
Read Labels Carefully -- Many Can Mislead
CL Answer
Which supplements and foods help relieve constipation and which can cause constipation?
Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.
CL Answer
What is Skinny Fiber and does it really work? I see that glucomannan is a key ingredient. What is that?
Learn more about Skinny Fiber, including its key ingredient glucomannan, evidence from clinical studies, dosage info, and safety.
Product Review
Lavender and Tea Tree Essential Oils Review
Oils Tested for Authenticity and Purity
CL Answer
Which supplements and foods can help lower or control blood sugar?
Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.
Product Review
Baobab Dried Fruit Pulp Review Article
What Are the Benefits of Baobab Dried Fruit Pulp? Find Out What's In Baobab Super Fruit Products, Safety, Side Effects & More.
CL Answer
Can psyllium help control hunger and appetite?
Learn more about psyllium (found in Metamucil), including effects on appetite and hunger control, results from clinical studies and safety.
Product Review
Probiotic Supplements Review (Including Pet Probiotics)
Probiotics: See What They Really Contain and Our Top Picks
CL Answer
Are Balance of Nature products good dietary supplements?
Do Balance of Nature supplements "Fruits" and "Veggies" supplements really provide the daily recommended servings of fruits and vegetables, and are they worth the cost? Find out.
CL Answer
Do any supplements naturally suppress appetite and help with weight loss?
Learn which natural ingredients can suppress appetite and find if these natural appetite suppressants help with weight loss.
CL Answer
Which vitamins and minerals should be taken together or separately?
Find out the best way to take vitamins and minerals and which vitamins and minerals should be taken together or separately for proper absorption. ConsumerLab answer explains the best way to take vitamins and minerals.
Product Review
Cranberry Juices and Supplements Review
CL's Tests Show Which Cranberry Juices and Supplements Are Best and Cost the Least
CL Answer
Pros and Cons of Stevia and Other Sugar Substitutes
Learn about the pros and cons of sugar substitutes and artificial sweeteners summarized in our table within this article.
News Release
February 29, 2024
Lead Found In Psyllium Fiber Supplements
White Plains, NY, February 29, 2024 — Psyllium is an effective laxative that may also have heart health benefits, but ConsumerLab’s recent tests found lead contamination in every psyllium fiber supplement it purchased and tested.
CL Answer
Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.
CL Answer
Does taking a laxative interfere with the absorption of vitamins or minerals?
Information on laxative interactions with other medications and supplements such as Maalox, antibiotics, and statins and diabetes medications.
Product Review
Multivitamin and Multimineral Supplements Review
Best Multivitamins In 2023 -- Caution with Gummies
CL Answer
What are the health benefits of nutritional yeast and is it safe?
Learn about the nutritional content and health benefits of nutritional yeast (nooch), evidence for or against nutritional yeast for boosting the immune system, lowering cholesterol and blood sugar, plus safety and side effects of nutritional yeast.
Product Review
Aloe Juices, Gels, and Supplements Review
How Much Aloe is Really in Aloe Products? Find Out and See Our Top Picks.
CL Answer
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.
Product Review
Bone Broth Review
Find the Best Bone Broth. Find Out How Much Collagen and Sodium Is Really In Popular Bone Broths.
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.
CL Answer
Does yacon syrup decrease appetite or help with weight loss? How do I find a quality brand?
Can yacon syrup can help with weight loss? Learn more, including clinical evidence, side effects, and dosage.
CL Answer
Which supplements can cause diarrhea?
Can supplements like magnesium cause diarrhea? Find out which supplements may cause diarrhea, such as vitamin B12, curcumin, magnesium, vitamin C and fish oil.
CL Answer
Are there supplements I should take, or take differently, when intermittent fasting?
Supplements that may help when intermittent fasting. Information about whey protein, CoQ10, magnesium and others, plus coffee, fiber and more.
Clinical Update
1/12/2019
Fiber Benefits
Higher fiber intake was associated with a lower risk of many major diseases in a recent study. However, the average American consumes far below the recommended daily intake of fiber. As oats are a good source of fiber, we’ve added details from the new study in the "Benefits" section of the Oat Cereals Review. (Also see our Top Picks oat cereals.)
Clinical Update
3/12/2024
Lead in Meta Mucil
A CL member asked why Meta Mucil 4-in-1 Fiber powder was not tested by us this year. It is because of the lead contamination we found when we tested it in 2021, as noted in our recent report. Hoping to find less contamination, this year we tested Meta Mucil 3-in-1 capsules, as well as Meta Mucil Fiber Gummies (a prebiotic).
See our Top Picks among psyllium fiber and prebiotic fiber supplements.
CL Answer
Which is the best mask to prevent COVID-19 and how do cloth, disposable, N95, and KN95 masks compare? How can I stop glasses from fogging?
See our Top Picks for masks. Learn how to make COVID-19 masks from materials at home that can be almost as effective as surgical mask and N-95 masks.
CL Answer
PFAS (Per- and Polyfluoroalkyl Substances): How can I avoid PFAS in dental floss, food, water, and other products?
Some brands of dental floss, including Oral-B Glide, may contain potentially toxic chemicals known as PFAS (polyfluoroalkyl substances). Get the details, and learn which floss and pick products are our Top Picks.
CL Answer
I enjoy oat milk in my coffee, but how healthy is it for me?
Is oat milk healthy? Information about oat milk contents, how much sugar and calcium is in oat milk, and if it is a healthy alternative to cow milk.
News Release
December 07, 2023
Best Shelled Walnuts According to ConsumerLab Tests
White Plains, New York, December 7, 2023 — Fresh walnuts are rich in healthful, unsaturated fats, protein, fiber, and certain vitamins and minerals, but how fresh and pure are packaged, shelled walnuts? And does higher cost guarantee better quality or taste? To find out, ConsumerLab recently ...
Product Review
Acai Berry Supplements and Beverages Review
Find the Best Acai Berry Supplements and Beverages. See Which Acai Berry Supplements and Beverages Passed Our Tests of Quality.
CL Answer
Does Restore (Biomic Sciences LLC) really improve gut health? What is in Restore?
Learn more about Restore, including clinical studies on gut health, dosage, cost, and safety.
Product Review
Choline and Lecithin Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)
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.
Product Review
African Mango (Seed Extract) Supplements for Weight Loss Review Article
Do African Mango Supplements Really Work For Weight Loss? Learn More About Choosing the Best African Mango Supplement: Evidence, Safety, Side Effects & More.
Product Review
Alginate Supplements Review (For Reflux)
See Our Top Pick Alginate Supplements For Reducing Symptoms of Gastroesophageal Reflux (GERD)
CL Answer
Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
Learn which supplements can ease tinnitus, including melatonin and pine bark extract. Understand which may actually cause tinnitus.
CL Answer
Is it true that eating Brazil nuts can help with weight loss? Are there other health benefits or risks of Brazil nuts
Learn more about vitamin E intake from nuts, including Brazil nuts, hazelnuts, and almonds.
CL Answer
Does the talc added to Centrum Silver and other vitamins pose a risk of cancer?
Find out if talc, an inactive ingredient in many vitamins and supplements, is safe to consume, and learn about asbestos in talc and cancer risk and USP-grade talc vs. food-grade talc and cosmetics-grade talc. ConsumerLab.com's answer explains.
CL Answer
What is the difference between cocoa and cacao? Is one better than the other?
Learn about the difference between cocoa vs. cacao, including cocoa powder, cocoa extracts, cocoa liquor, and cacao nibs. Information about benefits, caffeine, theobromine in cocoa and cacoa, differences between dark chocolate and milk chocolate. ConsumerLab.com's answer explains.
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.
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.
Clinical Update
11/04/2017
Cereal Fiber Reduces Risk of Death from Colorectal Cancer
Higher intakes of dietary fiber are associated with a lower risk of colorectal cancer. A new study suggests that higher intakes of fiber from cereal may reduce the risk of dying among those who have the disease. How much is needed for a benefit? Get the details in the "What It Does" section of the Oat Cereals Review >> [Also see our Top Picks for oat cereals in the Review.]
Clinical Update
11/26/2021
Fiber Gummies?
Are fiber gummies a good way to get fiber? Find out in our updated answer to the question: Is there cause for concern with gummy vitamins?
Product Review
Vitamin C Supplements Review
Find the Best Vitamin C Supplements
Product Review
Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)
One-Third of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and our Top Picks.
CL Answer
Is magnesium citrate safe? I heard that it might cause damage to the esophagus.
Find out if magnesium citrate is safe to use or if it causes damage to the esophagus.
Recalls & Warnings
April 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 ...
Product Review
Joint Health Supplements for Pets Review (Glucosamine, Chondroitin, MSM & Boswellia)
See Which Pet Supplements for Joint Health Passed Our Tests and Which Didn't!
Product Review
Coconut Oil and Medium Chain Triglycerides (MCT) Oil Review — Semi-Solid and Liquid Oils & Supplements
Find the Best Coconut Oil and MCT Oil. See How These Oils Compare on Medium Chain Triglycerides (MCTs), Quality, and Value.
Product Review
CBD Oils, Softgels, Gummies, Creams & Salves Review
See How Much CBD and THC We Found in Products.
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.
Product Review
Digestive Enzyme Supplements Review
Big Differences in Strength Found Among Digestive Enzyme Supplements. CL Tests Reveal Which Are Best.
CL Answer
Do water filters remove microplastics from tap water?
Find out if water filter pitchers and faucet mounted filters from Brita, Pur, Lifestraw and other brands remove microplastics from tap water.
CL Answer
What are the possible health benefits of fenugreek, and is it safe?
Fenugreek is promoted for boosting testosterone, increasing breastmilk production, lowering blood sugar, improving symptoms of polycystic ovary syndrome (PCOS), and other conditions, but does it work? Find out.
CL Answer
Which supplements or OTC medications 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.
CL Answer
Is Modified Citrus Pectin (MCP) helpful for prostate or breast cancer?
Modified Citrus Pectin (MCP) information including its effects on cancer, such as prostate cancer, and more.
CL Answer
What is EpiCor? Does it really "boost" the immune system and prevent colds?
EpiCor supplement info, including evidence from clinical studies on immune function and cold/flu prevention, safety, and price.
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.
CL Answer
Is there a danger in taking lecithin or phosphatidylcholine? I heard that they may increase the risk of heart attacks.
Lecithin, phosphatidylcholine and choline - Learn more about the potential link between them and cardiovascular disease.
CL Answer
What is lunasin and does it really reduce cholesterol?
Lunasin supplement information, whether lunasin can lower cholesterol, safety and side effects, foods that contain lunasin, like soy.
Clinical Update
5/31/2023
Best Fiber Supplement for Constipation?
Which type of fiber supplement is best for treating mild, chronic constipation? See what experts recommend, and why, in the What It Does section of our Psyllium Supplements Review.
Clinical Update
8/12/2022
ColonBroom
A CL Member recently asked us how ColonBroom, which is heavily promoted, compares to other psyllium fiber supplements. Find out in our Psyllium Fiber Supplements Review.
Clinical Update
12/22/2023
Lead in Metamucil
A recently filed lawsuit alleges that Proctor & Gamble failed to disclose "dangerous" amounts of lead in a variety of Metamucil products. Get the details, by product, in our Psyllium Fiber Supplements Review, which includes our tests of Metamucil and our Top Picks among psyllium fiber supplements.
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
I am 70 a year male in relatively good health. I plan on walking the Camino in France (500 miles). I am looking for a multivitamin that would best supply me with my needs during this walk/hike. What would be the best product or combination of products to use?
Find out if older adults who walk or hike should take a multivitamin, vitamin C, vitamin D, or other supplements, like electrolytes, when hiking. Plus, see our advice for choosing a good sunscreen.
Product Review
Coconut Waters Review
Best Coconut Water? See Our Tests and Comparisons of Popular Brands Looking at Sugar, Electrolytes, Taste and Price.
Product Review
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.
Product Review
Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements Review: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids)
Choose the Best Seed Oil Supplements. Find Out Which Flaxseed and Other Seed Oil Supplements Passed Our Tests.
Product Review
Ginger Supplements, Chews & Spices Review
Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.
Product Review
Weight Loss Supplements Review (7-Keto DHEA, Forskolin and Stimulant Blend Supplements)
Choose the Best Weight Loss Supplement. Be Careful With Weight Loss Supplements — Few Pass Quality Testing and Safety Review.
CL Answer
Butyrate Supplements for Gut Health: Does butyric acid really work and is it safe?
Can butyrate supplements improve gut health or help reduce symptoms of irritable bowel syndrome (IBS) or Crohn's disease? Find out what the clinical evidence shows, learn about the different forms of butyrate, including sodium butyrate, calcium-magnesium butyrate, and tributyrate, and get details about products such as BodyBio Sodium Butyrate and Healus Complete Biotic Tributyrin, dosage, safety and cost.
CL Answer
I have type 2 diabetes. Should I be concerned about ingredients like maltodextrin and maltitol that are found in some protein bars and drinks?
Learn more about maltitol and maltodextrin and their effects on blood glucose levels for people with type 2 diabetes.
CL Answer
Is it true that there is no point in taking fish oil supplements for heart health?
Taking fish oil for heart health may be a benefit. Learn more about omega fatty acids from fish oil and it's impacts.ains.
CL Answer
Is there evidence that d-limonene can help fight cancer?
Find out if d-limonene can help fight cancer or help for GERD (gastroesophageal reflux disorder), including evidence from clinical studies.
CL Answer
How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?
ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.
CL Answer
How do the Beyond Burger, the Impossible Burger, and a beef burger compare in terms of vitamins and minerals, and which is best?
Read our comparison of the Beyond Burger and the Impossible Burger, plant-based, meat alternative burgers. Compare nutrition, vitamins and minerals. ConsumerLab.com's answer explains.
Clinical Update
3/28/2023
Psyllium: Viva Naturals
Concerned about lead found by ConsumerLab in psyllium supplements, a CL member asked Viva Naturals about the quality of its Organic Psyllium Husk Powder, which was not tested by ConsumerLab. Viva provided its quality specifications for the product. See how this compares to amounts of lead actually found in competing products in the Update to the Psyllium Fiber Supplements Review. Also see our Top Picks among psyllium supplements.
Clinical Update
3/07/2023
Prebiotic Diet for Mood?
Did eating foods rich in prebiotic compounds improve mood in people with moderate psychological distress? See what a recent study showed in our Prebiotics Supplements Review.
Also find out which foods are high in prebiotic fiber.
Clinical Update
11/01/2022
Protein & Nutrition Bars -- Watch Out for Weight Gain
Protein and nutrition bars can be a convenient way to get protein, fiber, and other nutrients, but they can lead to weight gain according to a recent study. The details are in our Protein and Nutrition Bars Review.
Clinical Update
10/11/2022
Kiwi for Constipation?
Can eating kiwifruit reduce constipation as well as psyllium fiber? Find out what a recent study showed in our updated answer to the question: Which supplements and foods help relieve constipation and which can cause constipation?
Clinical Update
10/14/2022
Do Prebiotics Cause Liver Cancer?
Some CL readers expressed concern over recent headlines suggesting that prebiotic fiber may cause liver cancer. Learn if this should be of concern in the Concerns and Cautions section of our Prebiotics Review.
Clinical Update
1/13/2023
Lifestyle Changes for Tinnitus?
Find out if research supports the following lifestyle changes for reducing symptoms of tinnitus:
Clinical Update
3/04/2022
Protein Shake for Weight Management?
Can drinking a protein and fiber shake improve weight management in overweight people when used along with diet and exercise? Find out what a recent study found in the Weight management section of our Protein Supplements Review. Also see our Top Picks among protein powders, shakes and drinks.
Clinical Update
3/25/2022
Psyllium for Uncontrolled Bowel Movements
Psyllium is commonly used as a laxative, but did you know it can also help people with uncontrolled bowel movements (fecal incontinence), as noted in recent, expert guidelines? Get the details in the What It Does section of our Psyllium Fiber Supplements Review. Also see our Top Picks among psyllium supplements.
Clinical Update
3/31/2020
Chia for Obesity?
Chia seeds are highly nutritious and rich in fiber, but can they help with weight management? Find out what studies are showing, including a recent clinical trial among obese children, in the What It Does section of the Chia Seed Review. Also see our Top Picks for chia seed products.
Clinical Update
9/06/2023
Prebiotic for Mood?
Did supplementing with prebiotic fiber improve mood? Find out what a recent study showed in the Mood section of our Probiotic Supplements Review. Also see our Top Picks among prebiotic supplements.
Clinical Update
12/12/2023
Beans as Prebiotics
Beans can be a good source of prebiotic fiber. See what happened when one cup of beans was added to a regular daily diet in our Prebiotics Supplements Review. Also see our Top Picks among prebiotic supplements.
Clinical Update
3/08/2024
Benefiber, Meta Mucil Tested
Find out how Benefiber compares to less expensive Optifiber and about its health claims, and how Meta Mucil Fiber Gummies is different from other Meta Mucil products we’ve tested. It’s all in our updated Prebiotic Supplements Review.
Also see our recent tests of psyllium supplements.
News Release
November 02, 2023
Spirulina and “Greens” Supplement Tests Show Some Problems
White Plains, New York, November 2, 2023 — ConsumerLab tests of spirulina, chlorella, and “greens” supplements revealed that tablets of three brands of spirulina failed to disintegrate within the allotted time, and several other products contained amounts of lead unsuitable for regular consumption ...
Product Review
Elderberry Supplements Review
Find the Best Elderberry Supplement. Tests and Reviews of Popular Elderberry Supplements & CL's Top Picks.
CL Answer
Which supplements help with arthritis?
Learn more about supplements for joint health, including products such as Wobenzym and Zyflamend and ingredients such as collagen, curcumin, glucosamine and chondroitin, hyaluronic acid, magnesium, omega-3 fatty acids, palmitoylethanolamide (PEA), SAMe, and others.
CL Answer
I'm interested in using Himalayan salt. What are the health benefits with it and other specialty salts? Are there contaminants in these salts?
Himalayan salt health benefits, along with other gourmet salts like Hawaiian and Mediterranean. Info including what's in them and their safety.
CL Answer
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.
Product Review
NAD Booster Supplements Review (NAD+/NADH, Nicotinamide Riboside, and NMN)
How Important Is Boosting NAD+ Levels? Find Out and Learn How Booster Supplements Compare.
Product Review
Cholesterol-Lowering Supplements Review (Sterols/Stanols and Policosanol)
Find the Best Cholesterol-Lowering Supplement. See Which Plant Sterol and Policosanol Supplements Passed Our Tests and Are Our Top Picks.
Product Review
Alpha Lipoic Acid Supplements Review
Choose the Best Alpha-Lipoic Acid Supplement — See the Amounts of Active "R-Isomer" We Found
Product Review
Collagen Supplements Review
See our Top Picks for Wrinkles and Joints
Product Review
Iron Supplements Review (Iron Pills, Liquids and Chews)
See Which Iron Supplements Are CL's Top Picks for Different Needs
Product Review
Zinc Supplements and Lozenges Review
Find the Best Zinc Supplements and Lozenges. Have a Cold? See CL's Top Picks Among Zinc Supplements and Lozenges.
News Release
January 12, 2023
High Levels of Cadmium Found In Whole and Ground Flaxseed In ConsumerLab Tests
White Plains, New York, January 12, 2023 — Recent ConsumerLab tests revealed concerning levels of cadmium, a toxic heavy metal, in several popular flaxseed products which, otherwise, provided the listed amounts of healthy fats, fiber, and protein without microbial contamination.
CL Answer
Are enteric coated supplements better than non-enteric coated ones?
Learn about the pros and cons of enterically coated supplements, including ingredient absorption,safety and price.
CL Answer
Do 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.
CL Answer
What B-vitamin complex do you recommend for older people?
Vitamin B complex supplement recommendations, benefits and top rated brands for older people and all ages.
CL Answer
What are the side effects of red yeast rice?
Find out which side effects can be caused by red yeast rice supplements that are taken to lower cholesterol levels. ConsumerLab.com's answer explains.
Product Review
Noni Juice and Supplements Review Article
What Are the Benefits of Noni Juice? Get the Facts About Noni Juice and Supplements.
Product Review
Melatonin Supplements Review
Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.
Product Review
CoQ10 and Ubiquinol Supplements Review
Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ
Product Review
Magnesium Supplements Review
Find Out What Magnesium Does, Who Needs It, and Our Top Picks Among Supplements
Product Review
Green Tea Review: Tea Bags, Matcha Powders, and Supplements
Some green teas provide barely any green tea polyphenols, while some others are high strength. See the Test Results and Our Top Picks for Green Tea.
Product Review
Low-Dose Lithium Supplements Review
Choose the Best Low-Dose Lithium Supplement. CL Tests Reveal Which Low-Dose Lithium Supplements Offer the Best Quality and Value.
CL Answer
Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?
Learn more about the benefits of getting vitamins from food versus supplements, natural versus synthetic vitamins, and more.
CL Answer
What is C15:0 fatty acid (found in fatty15), and does it have health benefits?
C15:0 fatty acid in fatty15 is promoted for “healthier hair & skin, balanced metabolism, and deeper sleep,” as well as “slowing the aging process.” Find out if it works.
Recalls & Warnings
January 23, 2020
Flaxseed Salmonella Risk Prompts Recall
Update: (2/4/20) This recall has been expanded to include additional Nopalina flaxseed products, which are highlighted below.
News Release
November 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.
Product Review
Garcinia Cambogia (HCA) Supplements Review
Find the Best Garcinia Cambogia Supplement. Choose Carefully! Most Garcinia (HCA) Weight Loss Supplements Lack Listed Amount of Ingredient .
Product Review
Maca Supplements Review
Choose the Best Maca Supplement. Make Sure Your Maca Supplement Isn't Contaminated With Lead.
Product Review
SAMe (S-adenosyl-methionine) Supplements Review
Choose the Best SAMe Supplement. CL Tests Reveal Big Differences in Quality and Cost.
Product Review
Vision Supplements Review (with Lutein, Zeaxanthin & AREDS2 Formulas)
Find the Best Vision Supplement Based Our Tests
Product Review
Red Yeast Rice Supplements Review
50% of Red Yeast Rice Supplements "NOT APPROVED" in CL Tests
Product Review
Cinnamon Supplements and Spices Review
CAUTION: Some Cinnamon Products High in Toxin. See Which Passed or Failed and our Top Picks!
Product Review
Echinacea Supplements Review
Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!
Product Review
Prostate Supplements Review (Saw Palmetto and Beta-Sitosterol)
Find the Best Prostate Supplement for Symptoms of BPH. See Which Prostate Supplement Passed or Failed CL's Tests of Quality.
Product Review
Reishi Mushroom Supplements Review
Find the Best Reishi Mushroom Supplement. See How Reishi Supplements Differ.
Product Review
Apple Cider Vinegar Review — Bottled Liquids and Supplements
Find the Best Apple Cider Vinegar. See Which Apple Cider Vinegar Liquids and Supplements Passed Our Tests of Quality.
Recalls & Warnings
April 24, 2021
Metal Reported in Church & Dwight Gummy Melatonin, Multis & Fiber Supplements
On April 20, 2021, Church & Dwight Co., Inc.
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.
CL Answer
What is acrylamide? Is it true that coffee and cocoa contain this toxin?
Find out what acrylamide is, how much is found in coffee and cocoa, and how you can minimize your intake of acrylamide.
CL Answer
7 Red Flags to Watch Out For When Buying Vitamins & Supplements
When it comes to buying vitamins and supplements, it's buyer beware. ConsumerLab explains seven red flags to look out for on labels when choosing and buying vitamins or supplements, including claims of "FDA Approved" laboratories, what to look for in the ingredient list, and more.
Recalls & Warnings
January 31, 2021
Protein and Fiber Bars Recalled Due to Allergen Risk
On January 28, 2021, think! and Interpac Technologies, Inc. issued a voluntary recall of think! Protein + Fiber Oatmeal: Farmer's Market Berry Crumble due to the potential presence of tree nuts, including almonds and pecans.
News Release
October 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.
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Is it true that there are bits of plastic in drinking water, specialty salts, or other foods and beverages? How concerned should I be?
Microplastics are tiny pieces of plastic that can end up foods and beverages. Learn about microplastics found in drinking water and specialty salts. ConsumerLab.com's answer explains.
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Which supplements and lifestyle changes improve sleep, and which cause insomnia?
Find out which vitamins may help you sleep and learn if any vitamins or supplements can cause insomnia.
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Do any supplements help prevent or reduce eye floaters?
Find out eye floaters (vitreous floaters) be treated with supplements like vitamin C, lutein, ginkgo, milk thistle, collagen or hyaluronic acid, or with products such as VitreousHealth.
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I read that turmeric may be a GI irritant. I have GI problems and wonder if I should avoid turmeric and curcumin?
Find out if turmeric/curcumin supplements can cause gastrointestinal irritability.
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Are antioxidant supplements good or bad for you?
Learn more about whether antioxidants like astaxanthin, beta-carotene, coenzyme Q10, curcumin, resveratrol, selenium, vitamin A, vitamin C and vitamin E are safe and if they help prevent chronic diseases.
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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.
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8 Supplements That May Help Treat Peptic Ulcers – And Some to Avoid
Peptic ulcers caused by H. pylori infection are typically treated with antibiotics, but certain supplements may also help. Find out which 8 supplements might be beneficial - and which should be avoided.
News Release
February 24, 2022
Consumers Returned to Pre-Pandemic Supplement Usage in 2021, ConsumerLab Survey Reveals
White Plains, New York, February 24, 2022 —A survey of 8,049 people who use dietary supplements shows many supplements that declined in use in 2020 began bouncing back in 2021, such as magnesium (+2.4 percentage points), and CoQ10 (+2.7 pts).
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I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements or foods I should avoid, or be taking, due to this drug?
Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.
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Which air purifiers are best for reducing the spread of COVID-19?
Find out if portable air cleaners can remove the virus that causes COVID-19 infection from the air and learn which type air cleaners work best.
Recalls & Warnings
January 15, 2024
Suprex Carb & Sugar Block Recalled
On December 7, 2023, Vita 360, LLC issued a recall of one lot of SUPREX Plant Based Nutrition Carb & Sugar Block after FDA analysis found it to contain only 16 mcg of chromium per serving and not 100 mcg of chromium per serving, as listed on the label.
Recalls & Warnings
April 17, 2020
Fiber Supplement Recalled for Salmonella Risk
On April 13, 2020, Break Ventures/California Basics issued a recall of one lot of Zero for Him fiber supplement because recent testing found it has the potential to be contaminated with Salmonella.
Recalls & Warnings
June 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
June 17, 2022
Built Brand Protein Bar Recalled Due to E. Coli Concern
On June 10, 2022, Built Brands, LLC. Issued a recall of 4,146 Banana Cream Pie Puffs protein bars after routine testing discovered potential contamination with E. coli (Escherichia coli).
News Release
February 09, 2022
Caution With Spirulina Supplements: ConsumerLab Tests Reveal Lead Contamination, Quality Concerns
White Plains, New York, February 9, 2022 — Problems were discovered in three out of four spirulina supplements recently tested by ConsumerLab. One product was found to be contaminated with lead, and two other products, which were tablets, failed to disintegrate within the expected time.
Recalls & Warnings
January 21, 2018
Men's Fiber Supplement Recalled
On January 21, 2018, Break Ventures/California Basics recalled of its fiber supplement for men, Zero for Him (150 count) due to possible Salmonella contamination.
News Release
December 20, 2021
Dangerous Amounts of Iodine, Toxic Heavy Metals Found in Some Seaweed Snacks, According to ConsumerLab Tests
White Plains, New York, December 20, 2021 — Dried or roasted seaweed has become a popular snack, providing a tasy, crunchy, and vegan-friendly source of protein, fiber, and iodine, an essential nutrient for proper thyroid function.
News Release
March 03, 2020
Best and Worst Chia Seed Products Revealed by ConsumerLab
White Plains, New York, March 3, 2020 — Chia seeds are rich in fiber and a good source of healthful oils, particularly the omega-3 fatty acid ALA (alpha-linolenic acid), as well certain vitamins and minerals.
Recalls & Warnings
January 04, 2024
Lone Star Botanicals Warned by FDA for Manufacturing Violations
On November 26, 2023, the FDA issued a Warning Letter to Lone Star Botanicals, Inc.
Recalls & Warnings
August 16, 2023
FDA Warns Hekma Center, LLC for Promoting Products to Treat Anemia, Diabetes, Depression, & More
On June 2, 2023, the FDA issued a warning letter to Hekma Center, LLC following review of the company’s website and social media, which found statements about the company’s Natural Supplements for Anemia, Lymf (Galium aparine), Natural Supplements for Cardiomyopathy, Magic1 (Moringa ...
News Release
September 11, 2019
Some Nutrition Bars Contain More Carbs and Less Fiber Than Listed, ConsumerLab Tests Reveal
White Plains, New York, September 11, 2019 — Nutrition bars and cookies are promoted as a convenient way to get protein, fiber and other nutrients on-the-go, but recent ConsumerLab tests of popular nutrition bars and cookies reveal that some contain more carbohydrates (as well as fat and ...
News Release
February 24, 2017
Vitamin D Supplements Maintain Top Spot in Popularity, as Probiotics Surpass Multivitamins to #4 Behind Fish Oil and CoQ10 in Latest ConsumerLab.com Survey
White Plains, New York, February 24, 2017 — A recent survey of over 9,505 people who use dietary supplements shows the most popular dietary supplement to be vitamin D, followed by fish oil, CoQ10, probiotics, and multivitamins.
News Release
July 26, 2016
36% of Meal Replacement Powders and Shakes Fail ConsumerLab.com's Tests of Quality
White Plains, New York, July 26, 2016 — [Note: This review has been archived and is no longer available online. For ConsumerLab's most recent tests of meal replacement shakes, drinks and mixes, please see our Protein Powders, Shakes, and Meal Replacements Review.
Recalls & Warnings
April 10, 2021
HI-TECH Workout Supplements Recalled Due to Undeclared Allergens
On April 3, 2021, HI-TECH Pharmaceuticals issued a recall of all lots of APS Nutrition Isomorph 28 in a 2lb jug because they contain undeclared milk, wheat, and soy.
Recalls & Warnings
September 08, 2012
Medifast Settles False Advertising Suit
On September 7, 2012, Jason Pharmaceuticals Inc., a wholly owned subsidiary of Medifast, agreed to pay a $3.7 million civil penalty and meet new compliance requirements as part of a settlement with the U.S. Department of Justice and the Federal Trade Commission.
News Release
October 08, 2013
ConsumerLab.com Reports Problems and “Top Picks” Among Bars for Energy, Fiber, Protein, Meal-Replacement, and Whole Food
WHITE PLAINS, NEW YORK — October 8, 2013 — Which nutrition bars provide the best combination of nutrition and taste, and are accurately labeled? ConsumerLab.com recently set out to answer this question by purchasing popular bars in the U.S.
News Release
July 08, 2013
Contamination a Common Problem in "Greens" and "Whole Foods" Products According to ConsumerLab.com
White Plains, New York — July 8, 2013 — "Greens" and "whole foods" powders and pills, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, as well as fruits, were recently tested by ConsumerLab.
Recalls & Warnings
September 14, 2016
Seller of Aloe, Prostate and Joint Supplements Warned for Manufacturing Violations
On April 8, 2016, the FDA issued a warning letter to Salud Natural Entrepreneurs, Inc.
Recalls & Warnings
September 27, 2013
Company Warned For Distributing Weight Loss Supplement Containing DMAA, Drug Claims
On September 6, 2013, the FDA issued a warning letter to Pure Energy Products, Inc., following a facility inspection which found that the company distributes a weight loss supplement, called obestrim, which contains dimethylamylamine, or DMAA.
Recalls & Warnings
May 11, 2006
Weight-Loss Marketers Pay $3 Million for Deceptive Advertising
On May 11, the Federal Trade Commission (FTC) announced that sellers making questionable weight-loss and fat-loss claims to peddle skin gels and diet supplements will pay $3 million to settle charges that their deceptive claims violated federal law.
News Release
June 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
April 28, 2009
40% of Green Tea and Selenium Products Fail ConsumerLab.com Review of Cancer-Prevention Supplements; Lycopene Supplements Pass
WHITE PLAINS, NEW YORK — APRIL 28, 2009 — ConsumerLab.com announced results today of its Product Review of Supplements for Cancer Prevention. Among the products that ConsumerLab.com selected for testing, quality problems were found with two out of five green tea supplements.
News Release
August 12, 2008
ConsumerLab.com finds improvements in labeling of nutrition bars but potential pitfalls exist -- New report compares 20 bars, including those for protein, fiber, energy and whole food
WHITE PLAINS, NY — August 12, 2008 — Labeling on nutrition bars has become more accurate, according to a new report by ConsumerLab.com.
News Release
July 10, 2002
Pharmavite dietary supplements receive ConsumerLab.com approval — Vitamin E, SAM-e, St. John's Wort, Ginkgo and others merit approved quality products ranking
WHITE PLAINS, NY — July 10, 2002 — ConsumerLab.
Recalls & Warnings
June 21, 2005
FTC Settles Claims with Marketers of FiberThin and Propolene
On June 20, 2005, the Federal Trade Commission (FTC) announced that the marketers of the dietary supplements FiberThin and Propolene have settled FTC charges that their misleading weight-loss claims violated federal laws.
Recalls & Warnings
June 17, 2004
FTC Challenges Deceptive Weight Loss Claims for Supplement Targeted at Hispanics
On June 17, 2004, the Federal Trade Commission (FTC) announced a new law enforcement action challenging false advertising for the 1-2-3 Diet Kit, a purported weight loss product.
Recalls & Warnings
September 19, 2012
FDA Reports Arsenic in Rice Products -- Particularly Brown Rice
On September 19, 2012, the U.S. FDA released results of its testing of nearly 200 samples of rice and rice products, finding appreciable levels in many products, although the amounts in only a few exceed the cancer-warning threshold of the State of California (10 mcg per daily serving).
