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Extra Virgin Olive Oil Review
Most Failed to Be Approved. Find the Best Extra Virgin Olive Oil and Avoid Problems.
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.
Avocado Oil Review
Find the Best Avocado Oil for Purity, Freshness and Taste. Some Others May Include Rotten Avocado or Other Oils.
Potassium Supplements Review
Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.
Iron Supplements Review (Iron Pills, Liquids and Chews)
See Which Iron Supplements Are CL's Top Picks for Different Needs
Can I get the new coronavirus (2019-nCoV) from supplements from China?
Information about catching the coronavirus from supplements from China, plus info on contamination with heavy metals like lead and more.
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.
Whole, Ground, and Milled Flaxseed Review
Caution: High Levels of Cadmium Found In Flaxseed Products
B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)
See Which B Vitamins Are ConsumerLab's Top Picks!
Lysine Supplements Review
Choose the Best Lysine Supplement. CL Tests Reveal Which Lysine Supplements Provide the Best Quality and Value.
Psyllium Fiber Supplements Review
Most Psyllium Supplements Failed Our Tests Due to Lead Contamination. Find Out Which Passed or Failed and Which Is Our Top Pick.
Vitamin C Supplements Review
Find the Best Vitamin C Supplement. Tests and Reviews of Popular Vitamin C Supplements & CL's Top Picks.
Echinacea Supplements Review
Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!
Ginseng Supplements Review
Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.
Probiotic Supplements Review (Including Pet Probiotics)
Probiotics: See What They Really Contain and Our Top Picks
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.
Melatonin Supplements Review
Find the Best Melatonin Supplements. Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.
Turmeric and Curcumin Supplements and Spices Review
Find the Best Turmeric and Curcumin Supplements & Spices. Big Differences Discovered Among Brands -- Little Curcumin In Some.
DHEA Supplements Review
Choose the Best DHEA Supplement. Beware of Big Differences in Dose and Price.
Alpha Lipoic Acid Supplements Review
Choose the Best Alpha-Lipoic Acid Supplement. Some Alpha-Lipoic Acid Supplements Cost 13 Times As Much As Others -- But Is It Worth Paying More?
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.
Holy Basil Supplements Review
Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.
NAD Booster Supplements Review (NAD+/NADH, Nicotinamide Riboside, and NMN)
How Important Is Boosting NAD+ Levels? Find Out and Learn How Booster Supplements Compare.
Cinnamon Supplements and Spices Review
CAUTION: Some Cinnamon Products High in Toxin. See Which Passed or Failed and our Top Picks! .
CoQ10 and Ubiquinol Supplements Review
Find the Best CoQ10 and Ubiquinol Supplements and Learn What They Do
Noni Juice and Supplements Review Article
What Are the Benefits of Noni Juice? Get the Facts About Noni Juice and Supplements.
Can taking too much vitamin B-6 be dangerous?
Find out if multivitamins contain excessive amounts of B-6, how much B-6 is too much, and symptoms of toxicity and overdose.
What are the health benefits of zinc carnosine, also called polaprezinc, and is it safe?
Find out if zinc carnosine is beneficial for any GI conditions, including stomach ulcers, Helicobacter pylori infection, taste disturbances, aspirin-induced small-bowel injury and oral mucositis, and learn if it is safe.
Which "whole food" multivitamins don't include synthetic vitamins? How about Complete Foods, Sunwarrior, Garden of Life, Nature's Brands, and Doctors' Research?
Find out which "whole food" multivitamins are only from foods and which include synthetic vitamins, including Complete Foods Nutrition-OctoMega MultiVitamin; Sunwarrior; Garden of Life-MyKind Organics; Nature's Brands-PhytoVitamins; Doctors' Research MultiVitamin.
I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?
Supplement interactions with proton pump inhibitor (PPI) drugs like omeprazole (Prilosec) and Nexium.
Does collagen taken as a supplement help with arthritis? I'm seeing it in products for joint health.
Learn more about collagen supplements, including evidence from clinical studies on arthritis and muscle strength and safety.
Recalls & Warnings
Five Brands of Protein Supplements Recalled Due to Allergen Risk
On November 9, 2021, Nutracap Holdings, LLC issued a recall of certain Boba Origin, Etedream, RAW, Steel, and Vital Force protein supplements because they contain potential allergens, including soy, milk, wheat, and/or coconut, that are not declared on the label.
ConsumerLab Finds Lead, Cadmium and Arsenic Contamination in Greens and Whole Foods Supplements
White Plains, New York, August 9, 2016 — Powders, pills and drinks made from ingredients like wheat grass, alfalfa, kelp, spirulina, chlorella, leafy vegetables and fruits are a popular choice for people looking to increase their intake of vitamins, minerals and other plant-based nutrients.
Review of vitamin C supplements by ConsumerLab.com finds many of high quality but a wide range in prices
White Plains, New York — March 8, 2012 — Vitamin C may boost the immune system and is critical for maintaining healthy connective tissue, but do you need to take a supplement and, if so, how do you find one that is right for you and at the best price? ConsumerLab.
Choose zinc supplements carefully -- ConsumerLab.com finds only some have dosage proven to shorten colds, reduce eye disease
White Plains, New York — December 20, 2011 — Can zinc supplements shorten colds and reduce the progression of advanced macular degeneration? "Yes, but not all supplements provide a dosage that has been proven effective." says Tod Cooperman, M.D., President of ConsumerLab.com.
ConsumerLab.com identifies many quality melatonin sleep supplements, but prices range from 4 cents to over $1 for the same dose
White Plains, New York — November 29th, 2011 — Can melatonin help you sleep? "Melatonin supplements may help some people get to sleep sooner, particularly those with chronic sleeping problems, but don't just buy any supplement - they vary significantly in strength, dosage, and cost," ...
ConsumerLab.com finds quality problems with nearly 30% of fish oil supplements reviewed; "Fishy" claims identified -- Softgels and liquids for adults, children and pets tested, including krill oil and algal oil supplements
White Plains, New York — September 28, 2010 — Tests of fish, algal and krill oil supplements revealed quality problems with 7 out of 24 products selected by independent testing organization ConsumerLab.com.
ConsumerLab.com reports largest test of CoQ10 and ubiquinol supplements -- Most supplements provide claimed ingredient, but large variation in dosage and forms may confuse consumers. ConsumerLab.com provides guidance.
WHITE PLAINS, NEW YORK — JANUARY 13, 2009 — A report by ConsumerLab.com on supplements containing the anti-oxidant CoQ10 shows the difficulty for consumers in determining an appropriate dosage.
ConsumerLab.com Find Fifty Fish Oil Supplements Pass Quality Testing -- New Report Helps Consumers Choose Among Pills, Liquids, Foods and Beverages with Omega-3 Fatty Acids (EPA and DHA)
WHITE PLAINS, NEW YORK — AUGUST 5, 2008 — ConsumerLab.com announced today that testing of fifty omega-3 fish oil supplements, foods or beverages (including two marketed for pets) found all to have safe levels of mercury, lead and PCBs.
ConsumerLab.com finds most vitamin C supplements pass quality tests but one short on ingredient and some exceed tolerable levels
WHITE PLAINS, NEW YORK — MARCH 7, 2008 — ConsumerLab.com reported test results today for a wide variety of vitamin C supplements. Vitamin C is the top-selling single vitamin in the U.S., with sales of $863 million in 2006 according to Nutrition Business Journal.
Only three quarters of Ginkgo Biloba supplements contain proper ingredients. ConsumerLab.com posts first of its dietary supplement product tests.
WHITE PLAINS, NY, November 16, 1999 — Consumers have a one out of four chance of buying a Ginkgo Biloba product that may not deliver the ingredients they are seeking. This is the finding of an independent analysis of products conducted by ConsumerLab.
Recalls & Warnings
Seller of GlucoCor Warned for Drug Claims
On June 30, 2016, the FDA issued a warning letter to MC-COR, LLC, following a review of the company's website and Facebook page which found statements made about its GlucoCor capsules to be drug claims.
Recalls & Warnings
Turmeric Spice Recalled Due to Elevated Lead Levels
On September 26, 2016, Spices USA Inc. issued a recall of 772 bags of TASTY SAWA GROUND TURMERIC because it contains elevated levels of lead.
Recalls & Warnings
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).
Recalls & Warnings
FDA Warns Consumers about Brazilian Diet Pills Found to Contain Active Drug Ingredients
On January 13,2006, the U.S. Food and Drug Administration (FDA) warned consumers not to use two unapproved drug products that are being marketed as dietary supplements for weight loss.