Showing Results for fiber

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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

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

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

Gluten-Free Grains Review (Buckwheat, Quinoa, Sorghum, Millet, and Teff)

31% of Gluten-Free Grains Fail Our Tests Due to Contaminants. Quinoa, Buckwheat, Sorghum, Millet and Teff Tested.

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

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

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

Shelled Walnuts (Halves & Pieces)

See Our Top Picks for Walnuts

Product Review

Pumpkin Seeds (Pepitas) Review

We Identified the Best Pumpkin Seeds

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

Product Review

Seaweed Snacks and Foods Review

Tests Reveal Seaweed Snack Risks

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)

Find Products With the Least Mercury and Most Omega-3s

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

Product Review

Sunflower Seeds and Butters Review

High Levels of Toxin Found in Most Sunflower Seeds and Butters

CL Answer

ConsumerLab’s Review of The 'Pause Nutrition Supplements by Dr. Mary Claire Haver – Are They Worth It?

Looking into The 'Pause Nutrition supplements by Dr. Mary Claire Haver? ConsumerLab examines the value of products like Omega-3 + Vitamin D3 & K2, Fiber GDX, Skin Boost Plus, and more. Find out if these supplements are worth the price and discover affordable alternatives.

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

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.

CL Answer

Which supplements and foods can help treat constipation?

Find out which supplements and foods can help for constipation, including fiber, flaxseed, probiotics, magnesium and fruit.

Product Review

Probiotic Supplements Review (Including Pet Probiotics)

Probiotics: See What They Really Contain and Our Top Picks

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

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.

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.

Product Review

Multivitamin and Multimineral Supplements Review

Best Multivitamins In 2023 -- Caution with Gummies

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

Cranberry Juices and Supplements Review

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

News Release

August 19, 2024

High Levels of Toxin Found In Most Sunflower Seeds & Butters

White Plains, NY, August 19, 2024 —  Sunflower seeds are rich in healthy, unsaturated oils and provide significant amounts of protein, fiber, and vitamins and minerals, but ConsumerLab's recent tests found high levels of cadmium, a toxic heavy metal, in most of the sunflower seeds and sunflower ...

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

Hemp Seeds: Health Benefits, Safety, and What To Consider When Picking a Product

Hemp seeds are promoted for heart health, diabetes, boosting testosterone, and other conditions, but do they work? Find out and learn about potential safety concerns.

Product Review

Aloe Juices, Gels, and Supplements Review

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

CL Answer

Do any supplements 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.

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

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

Bone Broth Review

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

CL Answer

Sugar Substitutes: Pros, Cons, and Best Choices

Learn about the pros and cons of using sugar substitutes and artificial sweeteners in place of table sugar. Sweeteners discussed include stevia, monk fruit, and other high-intensity sweeteners; xylitol, erythritol, allulose and other low-calorie sweeteners; and agave syrup, coconut sugar, honey, molasses and other sugar alternatives.

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

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 help reduce the risk of colorectal cancer?

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

CL Answer

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

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

CL Answer

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

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

CL Answer

Supplements That May Be Needed When Following a Gluten-Free Diet

Find out if supplements such as folate, vitamin B-12, niacin, thiamin, iron, vitamin D, and/or fiber are needed when following a gluten-free diet. Also learn how to find gluten-free supplements on ConsumerLab.com.

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

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

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), relieves joint pain, decreases abdominal fat, or helps with weight loss.

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.

Product Review

Alginate Supplements Review (For Reflux)

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

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

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.

Product Review

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

Choose the Best Choline Supplement. Find Out How Much Choline Popular Supplements Really Provide.

Product Review

SAMe (S-adenosyl-methionine) Supplements Review

Choose the Best SAMe Supplement and Save Money

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

Ashwagandha Supplements Review

Find the Best Ashwagandha Supplement. Only 38% of Ashwagandha Products Pass Tests.

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 ...

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

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

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

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

Product Review

Vitamin C Supplements Review

Find the Best Vitamin C Supplements

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

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 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

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

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.

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.

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.

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!

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

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.

Product Review

Digestive Enzyme Supplements Review

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

CL Answer

Do any supplements help for ulcerative colitis?

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

CL Answer

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

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

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

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.

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

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

Coconut Waters Review

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

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

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

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

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

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

CL Answer

Do any supplements 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.

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

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

Find Out If It's Worth Taking Vitamin K and Which Products Are Best

CL Answer

Dandelion Tea & Supplements: Health Benefits and Safety

Find out about the potential health benefits of dandelion tea and supplements, as well as safety, side effects, and potential drug interactions.

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

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.

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.

Product Review

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

See Which Bone Health Supplements Are Top Picks and Which Fail

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.

Product Review

Low-Dose Lithium Supplements Review

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

Product Review

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

Find the Best Vitamin D Supplement and Avoid Problems

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.

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.

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

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

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

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.

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

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

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

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

CL Answer

Is Bottled Water Better Than Tap Water?

Some people consider bottled water to be a favorable alternative to tap water, but is it really better? Find out how bottled water and tap water compare in terms of taste, mineral content, acidity, and contaminants such as microplastics and PFAS.

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

Collagen Supplements Review

See our Top Picks for Wrinkles and Joints

Product Review

CoQ10 and Ubiquinol Supplements Review

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

Product Review

Water Filter Pitchers Review

See the Best Pitchers For Different Filtering Needs

Product Review

Melatonin Supplements Review

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

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.

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

Which supplements can help with indigestion and/or heartburn?

Information on supplements for heartburn that can help relieve gastrointestinal symptoms - heartburn, indigestion and acid reflux.

Product Review

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

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

CL Answer

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.

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.

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).

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.

Recalls & Warnings

April 24, 2021

Metal Reported in Church & Dwight Gummy Melatonin, Multis & Fiber Supplements

On April 20, 2021, Church & Dwight Co., Inc.

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.

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.

Product Review

Reishi Mushroom Supplements Review

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

Product Review

Red Yeast Rice Supplements Review

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

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

Cinnamon Supplements and Spices Review

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

Product Review

Apple Cider Vinegar Review — Bottled Liquids and Supplements

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

Product Review

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

Find the Best Vision Supplement Based Our Tests

CL Answer

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

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

CL Answer

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.

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

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

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

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.

CL Answer

Are antioxidant supplements good or bad for you?

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

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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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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.

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.

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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.

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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.

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.

CL Answer

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

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

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.

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 ...

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 ...

CL Answer

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

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

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Which supplements can help me sleep and which cause insomnia?

Find out which supplements may improve sleep, including melatonin, L-tryptophan, and magnesium, and which may make sleeping more difficult.

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

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.

CL Answer

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

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

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.

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.

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.

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.

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.

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).

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.

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.