Reviews and Information for Nutricost

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Product Review

Beetroot Juices, Powders, and Chews Review

Our Tests Show Which Beetroot Products Have the Most Nitrate, Least Lead, and Lowest Cost

Product Review

Protein Powders and Shakes Review

Find Out Which Protein Products Passed or Failed Our Tests

Product Review

NAC (N-Acetyl Cysteine) Supplements Review

Choose the Best NAC Supplement and Save Money

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

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

DHEA Supplements Review

Beware of Differences in Dose and Price.

Product Review

Nattokinase Supplements Review

Only 5 of 8 Nattokinase Supplements Pass Tests.

Product Review

L-Citrulline Supplements Review

Learn How Citrulline Products Differ and Our Top Picks

Product Review

Phosphatidylserine (PS) Supplements

Find out if phosphatidylserine helps with memory and which products are best.

Product Review

Glycine Supplements Review

Tests of Glycine Show High-Quality but Major Savings with Right Products.

Product Review

Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)

Do Creatine and BCAAs Really Improve Strength and Recovery?

Product Review

D-Mannose Supplements

Find out if D-mannose helps prevent urinary tract infections and how products compare.

Product Review

L-Glutamine Supplements Review

Find the Best L-Glutamine Supplements Based on Quality and Value. See our Top Picks.

CL Answer

Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits

ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon, Walmart.com, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.

CL Answer

What is inositol hexaphosphate (IP6) and myo-inositol? Are they helpful in treating cancer or other conditions?

Inositol hexaphosphate (IP6): Find out if IP6 (also known as phytic acid) can prevent or treat cancer. Clinical evidence, dosage, safety and how IP6 differs from myo-inositol. Consumerlab.com's answer explains.

CL Answer

Does Bacopa extract improve memory, mood, or sleep? Is it safe?

Find out if bacopa improves memory and cognition, mood or sleep, and whether it's been shown to be helpful in people with Alzheimer's disease or dementia. Plus, learn about the safety and common side effects of bacopa.

Product Review

Resveratrol Supplements Review (From Red Wine, Knotweed, and Other Sources)

See Which Resveratrol Supplements Were Best In Our Tests and Comparisons. Learn What Resveratrol Can and Can't Do.

Product Review

B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)

See Our Top Picks and Which 5 Failed Testing

Product Review

Cinnamon Supplements and Spices Review

CAUTION: Limit Use of Some Cinnamon Due to Liver Toxin. See Our Findings and Top Picks.

Product Review

Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)

18% of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and Our Top Picks.

Product Review

Green Tea Review: Tea Bags, Loose Leaf Tea, 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.

News Release

April 30, 2026

Best Protein Powders & Shakes? ConsumerLab Finds 29% Have Inaccurate Labels

White Plains, NY, April 30, 2026 — Protein powders and ready-to-drink shakes are a convenient way to get more protein, but new testing by ConsumerLab.com shows that some consumers may also get more cholesterol, sodium, or sugar than they bargained for.

News Release

April 15, 2026

Think Expensive NAC Is Better? ConsumerLab Tests Say Otherwise

White Plains, NY, April 15, 2026 — NAC (N-acetyl cysteine) supplements are widely marketed for “detoxification,” immune support, and respiratory health, as NAC is converted in the body into the antioxidant glutathione.

CL Answer

What are the health benefits of luteolin, and is it safe?

Find out if luteolin, a compound found in many fruits and vegetables, is beneficial for cancer, heart health, skin aging, age-related cognitive decline, and other conditions, and learn if it's safe.

News Release

February 25, 2026

Top-rated Vitamin and Supplement Brands and Merchants for 2026 Based on Consumer Satisfaction

-- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users --

News Release

February 24, 2026

ConsumerLab Tests Reveal Major Differences in DHEA Supplements

White Plains, NY, February 24, 2026 — DHEA (dehydroepiandrosterone) is a hormone naturally produced by the body and used to make estrogen and testosterone.

News Release

December 09, 2025

ConsumerLab’s Tests of Beetroot and Nitrate Products Yield Shocking Findings

White Plains, NY, December 09, 2025 — Beetroot products are promoted for their naturally occurring nitrate, which can relax blood vessels and improve blood flow. Few products, however, list nitrate levels.

News Release

November 20, 2025

ConsumerLab.com Reveals Major Differences in Nattokinase Supplements: Some Fall Short, Others Overdeliver

White Plains, NY, November 20, 2025 — Nattokinase is a popular enzyme derived from fermented soy and promoted for cardiovascular and circulatory support. However, independent testing by ConsumerLab.

News Release

September 12, 2025

ConsumerLab Tests Identify Best Milk Thistle Supplements

White Plains, NY, September 12, 2025 – Some milk thistle supplements may contain far less silymarin than a consumer might expect from labels, according to recent ConsumerLab tests.

News Release

April 24, 2025

ConsumerLab Tests Identify Best Glycine Supplements

White Plains, NY, April 24, 2025 —  Glycine supplements are promoted to improve sleep and mood, reduce symptoms of overactive bladder and chronic prostatitis, and for other benefits, but do they really work, and if so, which glycine products on the market are best?

News Release

March 13, 2025

Best L-Glutamine Supplements According to ConsumerLab Tests

White Plains, NY, March 13, 2025 —  L-glutamine (glutamine) supplements are promoted to boost energy and the immune system and for other benefits, but do they really work, and if so, which glutamine products on the market are best?

CL Answer

Are L-carnosine supplements helpful and safe?

Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.

CL Answer

What is TUDCA (tauroursodeoxycholic acid)? Does it have any proven health benefits, and is it safe?

TUDCA information, including its potential health benefits, safety, possible interactions, and cost.

CL Answer

Are Moringa Leaf Supplements Helpful and Safe?

Are moringa leaf supplements beneficial for diabetes, lowering cholesterol, lowering blood pressure, improving liver function, and other conditions, and are they safe? Find out.

CL Answer

Do any supplements help with restless legs syndrome?

Find out whether supplements or vitamins like iron, magnesium, vitamin E and others can help for restless leg syndrome (RLS). ConsumerLab.com's answer explains.

News Release

February 25, 2025

Top-rated Vitamin and Supplement Brands and Merchants for 2025 Based on Consumer Satisfaction

White Plains, New York, February 25, 2025 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 8,400 responses collected in November/December 2024.

News Release

February 25, 2024

Top-rated Vitamin and Supplement Brands and Merchants for 2024 Based on Consumer Satisfaction

White Plains, New York, February 25, 2024 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 10,000 responses collected in November/December 2023.

News Release

January 12, 2024

ConsumerLab Tests Prompt Product Recall of Memory Supplements

White Plains, New York, January 12, 2024 —  Phosphatidylserine supplements are often promoted to improve memory and brain function, but do they really work, and if so, which products on the market are best? To find out, ConsumerLab carefully reviewed the clinical evidence, and selected, ...

News Release

December 14, 2023

Best D-Mannose Supplements for UTIs? ConsumerLab Selects Its Top Picks

White Plains, New York, December 14, 2023 —  D-mannose, a naturally occurring sugar, is often taken as a supplement to help prevent or treat urinary tract infections, although more research is needed to prove it’s effective.

News Release

September 14, 2023

Best and Worst Berberine and Goldenseal Supplements, According to ConsumerLab Tests

White Plains, New York, September 14, 2023 —  Recent ConsumerLab tests revealed problems with nearly 45% of the berberine and goldenseal supplements selected for testing. Powders and capsules containing goldenseal (which naturally contains berberine) were particularly likely to have issues.

News Release

June 08, 2023

Best Muscle and Workout Supplements With Creatine or BCAAs, According to ConsumerLab Tests

White Plains, New York, June 8, 2023 — Creatine supplements are promoted to increase muscle size, strength, and endurance, while supplements with branched-chain amino acids (BCAAs) are promoted to improve exercise recovery.

News Release

February 25, 2023

Top-rated Vitamin and Supplement Brands and Merchants for 2023 Based on Consumer Satisfaction

White Plains, New York, February 25, 2023 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,600 responses collected in November/December 2022.

News Release

June 30, 2022

Best Protein Shakes & Drinks According to ConsumerLab Tests. Lead, Excess Sodium Found in Some

White Plains, New York, June 30, 2022 — Consumers may get more sodium, fat, calories, or even lead, than they bargained for from some protein supplements, according to recent ConsumerLab tests of over 20 popular protein powders and shakes.

News Release

June 14, 2022

Best B Complexes, B12, and Other B Vitamin Supplements Revealed by ConsumerLab Tests: Beware of High Doses

  White Plains, New York, June 14, 2022 — Recent ConsumerLab tests of over 30 popular vitamin B complexes and supplements revealed that four products contained either much less, or much more, of at least one B vitamin listed on the label.

News Release

February 25, 2022

Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction

White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021.

News Release

February 25, 2021

Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020.

News Release

February 25, 2020

Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019.

News Release

March 11, 2019

Best NAC (N-acetyl cysteine) Supplements Identified by ConsumerLab

White Plains, New York, March 11, 2019 — NAC (N-acetyl cysteine) supplements are promoted for many uses, including "liver support," "immune support," and reducing symptoms of the flu and flare-ups of chronic bronchitis.

News Release

January 21, 2018

Best Apple Cider Vinegar? Beware of Poison! -- ConsumerLab.com Tests Reveal the Best and Worst Apple Cider Vinegars and Pills and Why Some Could Be Dangerous

White Plains, New York, January 21, 2018 — Apple cider vinegar is promoted as a safe and natural remedy for everything from lowering blood sugar and losing weight to improving digestion and treating infections.