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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.

Green Tea Review 2024

CL Answer

What’s the Best Way to Get High-Quality Protein from Food?

Find out the best way to get high-quality protein from animal or plant-based food instead of supplements.

Examples of foods that are good sources of protein

CL Answer

Top 8 vitamins and nutrients for vegetarians and vegans

Find out which 8 supplements may be needed by vegetarians or vegans to meet all their daily nutrient requirements and learn ways to find supplements that do not contain ingredients objectionable to people following vegetarian or vegan diets.

Woman pouring supplements into her hand while sitting in front of a table on which vegetables are placed

Product Review

PQQ (Pyrroloquinoline Quinone) Supplements Review

Learn What PQQ Does and Which PQQ Supplements are Best

CL Answer

What is Perque Bone Guard Forté? It is safe and effective for bone health?

Find out about the ingredients in Perque Bone Guard Forté, including which ingredients may be beneficial for osteoporosis and bone health and which may be a safety concern.

Bottle of Perque Bone Guard Forte

News Release

October 02, 2018

Best Joint Health Supplements Identified -- ConsumerLab Tests Glucosamine, Chondroitin, MSM and Boswellia Supplements for People and Pets

White Plains, New York, October 2, 2018 — Do joint health supplements with ingredients such as glucosamine, chondroitin, Boswellia, and MSM really relieve joint pain or slow the progression of osteoarthritis? If so, which products are best? To find out, ConsumerLab recently tested popular ...

News Release

February 03, 2017

ConsumerLab.com Shows How Much Choline is Really in Supplements -- ConsumerLab.com Tests Phosphatidylcholine (From Soy Lecithin), Citicoline, Alpha-GPC and Other Choline-Containing Supplements, Identifying Top Picks

White Plains, New York, February 3, 2017 — Choline is an essential nutrient important for liver and brain function. It can be obtained from the diet and most people also produce significant amounts in their bodies.

Recalls & Warnings

February 15, 2006

New Zealand Warns of Liver Toxicity from Black Cohosh

On February 9, 2006, New Zealand's Therapeutic Goods Administration (TGA) announced new labelling and consumer information for medicines containing Black cohosh (Cimicifuga racemosa).

Recalls & Warnings

January 02, 2004

Health Canada Warns Consumers Not to Use Health Products Containing Comfrey

On December 12, Health Canada advised Canadian consumers not to ingest the herb comfrey or any health products that contain comfrey because they might contain a compound called echimidine, which may cause liver damage.

Recalls & Warnings

August 25, 2002

Canadian Recall and Stop-Sale Order on All Kava Products

Health Canada is issuing a stop-sale order for all products containing the herb kava after a safety assessment concluded there is insufficient evidence to support their safe use. The department is also requesting the recall of these products from all levels of the market.