Independent Tests and Reviews of Vitamin, Mineral, and Herbal Supplements

Rare but Serious GLP-1 Side Effect

GLP-1 medications have been linked to a rare but serious brain condition caused by a vitamin deficiency. Get the details about this and the vitamins and minerals of concern with GLP-1 medications.

A Better Creatine?

A proprietary form of creatine monohydrate claims to be more soluble and cause fewer side effects than standard creatine monohydrate. But is that true? Find out + see our Top Pick for creatine.

Better Memory With a Red Chili Extract?

Did an extract from red chili pepper (capsaicin) improve memory and cognition in older people? Find out in our article about supplements for memory.

NAC: Does It Help With Fatty Liver or Other Conditions?

NAC (N-acetyl cysteine) is promoted for many uses, but does it reduce liver fat? A new clinical study put it to the test. Find out if it worked and if NAC helps with other conditions + see our Top Picks for NAC.

How to Reduce Microplastics in Your Tea

Plastic tea bags can release microplastics into your tea, but a new study showed a quick thing you can do to reduce the plastic by more than 75%. Find out in our Green Tea Review, which includes our Top Picks for green tea in bags, loose tea, matcha, bottled tea, and supplements.

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B Vitamins & Complexes
Psyllium & Fiber Supplements
Vitamin D
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Find the best supplements and foods — based on independent tests of quality.

Best NAD+ Booster Supplements? See our Top Picks

OmegaXL Review: Does It Really Work for Joint and Muscle Pain?

Most Seaweed Snacks & Foods Fail Tests — But We Found a Winner

Some Colostrum Supplements Fail to Deliver

Supplements to Take or Avoid When Using a GLP-1 Drug

365 Whole Foods Market Ashwagandha Recalled

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Popular Product Reviews

B Vitamin Supplements

Dark Chocolates, Cocoa Powders and Supplements

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Extra Virgin Olive Oil

Green Tea Supplements and Drinks

Magnesium Supplements

Melatonin Supplements

Multivitamin and Multimineral Supplements

Probiotics

Vitamin D Supplements

Zinc Supplements, Lozenges, and Melts

Product Updates

Rare but Serious GLP-1 Side Effect

A Better Creatine?

Better Memory With a Red Chili Extract?

NAC: Does It Help With Fatty Liver or Other Conditions?

How to Reduce Microplastics in Your Tea

Upcoming Reviews

Expert Answers to Popular Questions

Do any supplements help for flu?

Can light boxes help with winter depression or jet lag? Which work best?

Is Ester-C the best form of vitamin C?

Do any supplements help prevent or treat a cold?

Does Z-Stack boost immunity, and is it safe?

Is it possible to take too much vitamin C?

Ratings of ConsumerLab

Clinical Updates

Stress Relief from a Postbiotic?

NAC: Does It Help With Fatty Liver or Other Conditions?

Better Memory With a Red Chili Extract?

Passionflower for a Testosterone Boost?

Lower NAD Levels: Is Age Really the Reason?

Recalls & Warnings

10 Day Forecast Sexual Enhancement Capsules Recalled Due to Hidden Drugs

New Green Nutrition Warned by FDA After Hidden Steroid Found in Product

365 Whole Foods Market Ashwagandha Recalled Due to Salmonella Risk

Hidden Tadalafil Found in Green Lumber Natural Fuel for Men

Ultimate Forza Male Supplement Recalled Due to Hidden Drugs

Clinical Updates

Stress Relief from a Postbiotic?

NAC: Does It Help With Fatty Liver or Other Conditions?

Better Memory With a Red Chili Extract?

Passionflower for a Testosterone Boost?

Lower NAD Levels: Is Age Really the Reason?

Recalls & Warnings

10 Day Forecast Sexual Enhancement Capsules Recalled Due to Hidden Drugs

New Green Nutrition Warned by FDA After Hidden Steroid Found in Product

365 Whole Foods Market Ashwagandha Recalled Due to Salmonella Risk

Hidden Tadalafil Found in Green Lumber Natural Fuel for Men

Ultimate Forza Male Supplement Recalled Due to Hidden Drugs

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