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Product Review

Whole, Ground, Milled, and Cracker Flaxseed Review

High Levels of Cadmium Found in Flaxseed Products — Testing Expanded

Product Review

Sunflower Seeds and Butters Review

High Levels of Toxin Found in Most Sunflower Seeds and Butters

Sunflower Seeds & Butters 2024

Product Review

Dark Chocolates, Cocoa Powders and Supplements Review

Many Dark Chocolates and Cocoa Powders Fail Safety Tests

Cocoa and Dark Chocolate Review 2025

CL Answer

Why is there so much cadmium, a toxin, in cocoa powders but not in dark chocolate?

Learn more about the presence of the toxic heavy metal cadmium in cocoa powder and dark chocolate.

Cocoa Powder

Product Review

Pumpkin Seeds (Pepitas) Review

We Identified the Best Pumpkin Seeds

Pumpkin Seeds Review 2024 (2)

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.

Greens Review Oct 2023

Product Review

Multivitamin and Multimineral Supplements Review

32% Failed our Tests. Choose Your Multivitamin Carefully.

Multivitamins Review 2026

Product Review

Water Filter Pitchers Review

See the Best Pitchers For Different Filtering Needs

Product Review

Seaweed Snacks and Foods Review

Tests Reveal Seaweed Snack Risks

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.

Grains Review

Product Review

Fish Oil, Krill Oil, and Algal Oil Omega-3 (DHA & EPA) Supplements Review

See Our Omega-3 Top Picks and Avoid Rancid Fish Oils.

Fish Oil and Other Marine Oil Supplements Reviewed by ConsumerLab.com

Product Review

Protein Powders and Shakes Review

Find Out Which Protein Products Passed or Failed Our Tests

Protein Review 2026

Product Review

Rice Review (White, Brown, Black, Wild, and Combination)

Discover Arsenic Levels in Rice and Our Top Picks.

Rice Review 2025

Product Review

Licorice and DGL Supplements, Candies, and Tea Review

What's In Your Licorice? Find Out and Avoid Problems.

Licorice & DGL Review 2025

Product Review

Rolled Oats and Steel-Cut Oats Review

Find the Best Rolled and Steel-Cut Oats -- Beware of Unexpected Gluten.

Rolled and Steel Cut Oats 2024

Product Review

Hemp Seed Review

We Found That 33% of Products Were Spoiled

Hemp Seed Review 2026

CL Answer

Which foods and supplements contain lead, cadmium, or arsenic?

Discover which foods and dietary supplements contain lead and other metals, the limits, who’s testing, and how to stay safe.

Lead in Supplements & Foods -- concerned woman looking at pill

Product Review

Nutrition Bars Review (Protein, Energy, and Nut & Fruit Bars)

Our Tests Showed What's Hiding in Protein Bars

Nutrition Bars 2025 2

Product Review

Zinc Supplements, Lozenges, and Melts Review

Find the Best Zinc Supplements, Including Lozenges for Colds.

Zinc Review 2024

Product Review

Nutritional Yeast Review

Inaccurate Labeling Discovered on Most Nutritional Yeasts. Best Fortified and Non-Fortified Products Identified.

Nutritional Yeast Review

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

Magnesium Review 2024

Product Review

Cinnamon Supplements and Spices Review

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

Cinnamon Review 2025

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.

Green Tea Review 2024

Product Review

Bone Broth Review

Find the Best Bone Broth for Quality, Taste, and Value. Four of 10 Products Fail to Get CL Approval.

Bone Broth Review 2025

Product Review

Canned Tuna, Salmon, Sardines & Mackerel Review

Find Fish With the Least Mercury & Arsenic and Most Omega-3s

Canned Fish Review 2025

Product Review

Beetroot Juices, Powders, and Chews Review

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

Beetroot Review 2025

Product Review

Phosphatidylserine (PS) Supplements

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

Phosphatidylserine Review 2024

Product Review

Farro and Bulgur Review

See How Bob's Red Mill Compares to Trader Joe's

Farro and Bulgur Review 2024

Product Review

Amla Supplements Review

Only 3 of 8 Amla Powders and Pills Pass CL's Tests

Amla Review 1

Product Review

Vitamin C Supplements Review

Find the Best Vitamin C Supplements

Vitamin C Review 2023

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.

Joint Health Supplements Review 2025

Product Review

D-Mannose Supplements

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

D-Mannose Review 2023

Product Review

Black Seed Oil Review

Find Out Which Black Seed Oil Supplements Passed or Failed Our Tests. See Our Top Picks.

Black Cumin Seed Oil Review 2025

Product Review

Apple Cider Vinegar Review — Bottled Liquids and Supplements

Find the Best Apple Cider Vinegar and Avoid Fakes.

Apple Cider Vinegar Review

Product Review

Glutathione Supplements Review

Learn How Glutathione Products Differ, Which Failed, and Our Top Picks

Glutathione Review 2024

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

Calcium Review 2024

Product Review

Glycine Supplements Review

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

Glycine Review 3

CL Answer

Is Hershey's Special Dark better than other dark chocolate bars or cocoa powders?

Find out if Hershey's Special Dark Chocolate bar is better than other dark chocolate bars or cocoa powders, including flavanol content, contamination with lead or cadmium and other tests of quality. ConsumerLab.com's answer explains.

Chocolate Bar

Product Review

Psyllium Fiber Supplements Review

Find the Best Psyllium Fiber Supplement and Avoid Lead.

Psyllium Review 2024

Product Review

Quercetin & Rutin Supplements Review

Quality's a Concern With Quercetin and Rutin Supplements -- Only 17% of Claimed Amount In One

Product Review

Shilajit Supplements Review (Resins and Extracts)

We Discovered Major Differences Among Shilajit Supplements

Shilajit Review 2024

Product Review

Milk Thistle Supplements Review

3,700% Difference Found Among Milk Thistle Supplements. Find the Best Milk Thistle Based on Our Tests and See Our Top Picks.

Milk Thistle Review 2025

Product Review

Ashwagandha Supplements Review

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

Ashwagandha 2024

Product Review

Nattokinase Supplements Review

Only 5 of 8 Nattokinase Supplements Pass Tests.

Nattokinase Review 2025 (5)

Product Review

Turmeric and Curcumin Supplements and Spices Review

See Our Top Picks Among Turmeric Products

Turmeric Review 2025

Product Review

St. John's Wort Supplements Review

Find the Best St. John's Wort Supplement. Only 40% of St. John's Wort Supplements Pass Tests & Strength Varies Widely.

St John's Wort Supplements Reviewed By Consumerlab.com

Product Review

Valerian Supplements Review

Choose the Best Valerian Supplement. Strength and Contamination Vary Widely Among Popular Valerian Brands.

Valerian Supplements Reviewed by ConsumerLab.com

Product Review

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

Find the Best Vitamin D Supplement and Avoid Problems

Vitamin D Review 2024

Product Review

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

Is Boron Needed for Bone Health? Find Out and See Our Top Pick Among Supplements

Boron Review 2024

Product Review

Probiotic Supplements Review (Including Pet Probiotics)

See What's Really in Probiotics and Our Top Picks

Probiotics 2025

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

Vitamin K Review 2024

Product Review

Ginger Supplements, Chews & Spices Review

Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.

Ginger Supplements Reviewed By Consumerlab.com

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.

Very Low Lithium Supplements Reviewed by ConsumerLab.com

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

Product Review

DHEA Supplements Review

Beware of Differences in Dose and Price.

DHEA Review 2026

Product Review

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

See Our Top Picks and Which 5 Failed Testing

B Vitamins Review 2024

Product Review

NAC (N-Acetyl Cysteine) Supplements Review

Choose the Best NAC Supplement and Save Money

NAC Review 2026

Product Review

Vitamin A Supplements Review, Including Beta-Carotene and Cod Liver Oil

Find the Best Vitamin A Supplement. Best Quality Vitamin A Supplements Identified, Including Cod Liver Oil.

Vitamin A Supplements (Including Cod Liver Oil) Reviewed by ConsumerLab.com

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.

NAD Boosters (NAD+/NADH, Nicotinamide Ribose, and NMN)

Product Review

Coconut Waters Review

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

Coconut Waters Reviewed by ConsumerLab.com

Product Review

Kelp Supplements Review

Choose the Best Kelp Supplement. Be Cautious With Kelp! Only 50% of Supplements Pass CL's Review.

Kelp Supplements Reviewed by ConsumerLab.com

Product Review

L-Glutamine Supplements Review

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

L-Glutamine Review

Product Review

L-Citrulline Supplements Review

Learn How Citrulline Products Differ and Our Top Picks

L-Citrulline Review 2023

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

Lion's Mane and Chaga Supplements tested by ConsumerLab.com

Product Review

Saffron Supplements Review

See How Saffron Supplements Compare and What They Do

News Release

May 13, 2026

Best Hemp Seeds? Some Contain Mold, ConsumerLab Tests Reveal

White Plains, NY, May 13, 2026 — Hulled hemp seeds, or "hemp hearts" can be a good source of protein, polyunsaturated fats, magnesium, and other important nutrients, but new tests by ConsumerLab reveal that some hemp seeds are contaminated with mold.

Product Review

Alginate Supplements Review (For Reflux)

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

Alginate supplements reviewed by ConsumerLab.com

Product Review

Green Coffee Bean Extract Supplements Review (for Weight Loss)

Choose the Best Green Coffee Bean Extract. 50% of Green Coffee Bean Extract Supplements Don't Deliver Expected Ingredients.

Green Coffee Bean Extract Supplements Reviewed by ConsumerLab.com

Product Review

Potassium Supplements Review

Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.

Potassium Supplements reviewed by ConsumerLab.com

Product Review

Ginkgo (Ginkgo Biloba) Supplements Review

Choose the Best Ginkgo Biloba Supplement. Finding Real Ginkgo Isn't Easy — 60% Fail ConsumerLab's Tests of Quality.

Ginkgo Biloba Supplements Tested by ConsumerLab.com

Product Review

Echinacea Supplements Review

Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!

Echinacea supplements reviewed by ConsumerLab.com

Product Review

Joint Health Supplements for Pets Review (Glucosamine, Chondroitin, & MSM)

See Which Pet Supplements for Joint Health Passed Our Tests and Which Didn't!

Joint Supplements for Pets

Product Review

CoQ10 and Ubiquinol Supplements Review

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

CoQ10 2024

News Release

March 19, 2026

Fake Apple Cider Vinegar? ConsumerLab Tests Reveal Best & Worst Brands

White Plains, NY, March 19, 2026 — Apple cider vinegar is widely promoted for blood sugar control, weight management, and general health due to its acetic acid content, but new tests by ConsumerLab reveal that not all products are what they claim, and some products may offer little benefit.

Product Review

Garlic Supplements Review

Find the Best Garlic Supplements. CL Tests Reveal Big Differences in Garlic Strength -- Some Have Little to No Garlic!.

Garlic Supplements Reviewed by ConsumerLab.com

Product Review

Menopause Supplements Review (Soy and Red Clover Isoflavones, Black Cohosh) and Progesterone Creams

Choose the Best Menopause Supplement. Find Out Now Which Soy Isoflavone, Red Clover, Black Cohosh, and Progesterone Products Have the Active Compounds You Want!

Menopause Supplements Tested by ConsumerLab.com -- Soy and Red Clover Isoflavones, Black Cohosh, and Progesterone Cream

Product Review

Rhodiola Rosea Supplements Review

Do Rhodiola Supplements Help With Depression and Anxiety? Find Out and See Which Rhodiola Supplements Provide the Best Quality & Value.

Rhodiola Supplements Reviewed by ConsumerLab.com

Product Review

PQQ (Pyrroloquinoline Quinone) Supplements Review

Learn What PQQ Does and Which PQQ Supplements are Best

CL Answer

Does a USDA Organic seal guarantee that a supplement or natural product has been tested for toxic heavy metals such as lead, cadmium or arsenic?

Find out what the USDA Organic seal on dietary supplements means and whether certified organic supplements and natural products are tested for toxic heavy metals such as lead, cadmium, and arsenic.

USDA Organic seal

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.

Cocoa and Dark Chocolate Review 2025

Product Update

9/25/2025

Cadmium in Flaxseed

When we tested flaxseed products, we found high levels of cadmium in several popular brands and learned that many companies were not testing for cadmium. At least one company now seems to be testing for cadmium, as we note in an Update to our Flaxseed (Whole and Ground) Review, which includes our Top Picks among flaxseed products.

Clinical Update

7/22/2022

Cadmium, Lead & Chocolate

A CL member recently asked how cadmium and lead make their way into cocoa and chocolate products. Find out in the Cadmium, Lead and Arsenic section of our Dark Chocolates, Cocoa & Cacao Supplements Review. Also, find out how much cadmium ConsumerLab found in cocoa products.

Product Review

L-Arginine Supplements Review

Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.

L-Arginine Supplements Reviewed by ConsumerLab.com

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.

Review of resveratrol supplements tested by ConsumerLab.com, including ratings and comparisons of product quality, price, and ingredients.

Product Review

Shelled Walnuts (Halves & Pieces)

See Our Top Picks for Walnuts

Walnuts Review 2023

Product Review

Collagen Supplements Review

See our Top Picks for Wrinkles and Joints

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.

Product Review

Black Currant, Borage, Evening Primrose, Flax and Hemp Seed Oil Review

Choose the Best Flaxseed and Other Oils Based on Our Tests.

Omega 3 and 6 Seed Oil Review 2025

Product Review

Electrolytes & Sports Drinks Review

See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes

Product Review

Elderberry Supplements Review

Find the Best Elderberry Supplement. Tests and Reviews of Popular Elderberry Supplements & CL's Top Picks.

Elderberry Supplements Reviewed by ConsumerLab.com

Product Review

Holy Basil Supplements Review

Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.

Holy Basil Supplements Reviewed by ConsumerLab.com

Product Review

L-Tryptophan and 5-Hydroxytryptophan (5-HTP) Supplements Review

Choose the Best L-Tryptophan and 5-HTP Supplements. CL Tests Identify High Quality L-Tryptophan and 5-HTP (5-Hydroxy-L-Tryptophan) at the Best Value.

L-Tryptophan and 5-HTP (5-Hydroxy-L-tryptophan) Supplements Reviewed By Consumerlab.com

Product Review

Selenium Supplements Review

Choose the Best Selenium Supplement. Find Out If You Need Selenium and Which Supplement Is Our Top Pick.

Selenium Supplements Reviewed by ConsumerLab.com

Product Review

Maca Supplements Review

Choose the Best Maca Supplement. Make Sure Your Maca Supplement Isn't Contaminated With Lead.

Maca Supplements Reviewed by ConsumerLab.com

Product Review

L-Theanine Supplements Review

Touted for Stress Relief, Do L-Theanine Supplements Work?

CL Answer

Is it safe to drink coffee regularly? Does drinking coffee increase or decrease the risk of cancer?

Learn more about coffee, its safety, if it's good for you, and if it impacts your risk of cancer.

Is it Safe to Drink Coffee Regularly

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.

Weight Loss Supplements Tested by ConsumerLab.com

Product Review

Aloe Juices, Gels, and Supplements Review

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

Product Review

Taurine Supplements Review for People, Dogs, and Cats

Find the Best Taurine Supplements. Learn When to Use Taurine and Which Supplement is Best.

Taurine Supplements Reviewed by ConsumerLab.com

News Release

January 27, 2026

ConsumerLab Identifies Best Licorice and DGL Supplements

White Plains, NY, January 27, 2026 — Licorice root and deglycyrrhizinated (DGL) licorice supplements are widely used for digestive support and enjoyed in teas and candies, but few products disclose their levels of glycyrrhizic acid — the compound responsible for licorice’s sweetness but also its ...

Clinical Update

3/24/2023

Cadmium Found in More Flaxseed Products

Due to high levels of cadmium, a toxic heavy metal, found in tests of flaxseed products reported in January, we purchased and tested seven additional products.

Four products could not be fully approved, due to cadmium contamination -- two of which also had incorrect nutritional facts.

However, three products were fully approved and have become Top Picks, including a whole flaxseed, ground flaxseed, and as a flaxseed cracker.

See the results now in our expanded Whole, Ground, Milled, and Cracker Flaxseed Review.

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.

Chia supplements reviewed by ConsumerLab.com

Product Review

Astaxanthin Supplements Review

See Which Astaxanthin Products Passed or Failed CL's Tests

Astaxanthin supplements reviewed by ConsumerLab.com

Product Review

Iron Supplements Review (Iron Pills, Liquids and Chews)

See Which Iron Supplements Are CL's Top Picks for Different Needs

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.

Acai berry supplements and beverages reviewed by ConsumerLab.com

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 .

Garcinia Cambogia (HCA) Supplements Reviewed by ConsumerLab.com

Product Review

Ginseng Supplements Review

Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.

Ginseng Supplements Reviewed by ConsumerLab

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

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.

Coconut and MCT Oils Reviewed by ConsumerLab.com

Product Review

GABA Supplements Review

Does GABA Work As a Supplement?

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

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

Red Yeast Rice Supplements Review

Only 2 of 7 Red Yeast Rice Supplements Approved in CL Tests

Red Yeast Rice Review 2026 3

Product Review

Manuka Honey Review

Find the Best Manuka Honey Based on Quality, Taste, and Value. See our Top Picks.

Manuka Honey Review

Product Review

Digestive Enzyme Supplements Review

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

Product Review

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

Find the Best Vision Supplement Based Our Tests

Product Review

Melatonin Supplements Review

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

Melatonin Review 2024

Product Review

Cranberry Juices and Supplements Review

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

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

Chromium Supplements Review

Chromium Supplements Review. Best Chromium Supplements Identified -- By Strength.

Chromium Supplements Reviewed by ConsumerLab.com

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.

Product Review

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

Do Creatine and BCAAs Really Improve Strength and Recovery?

Product Review

CBD Oils, Softgels, Gummies, Creams & Salves Review

See How Much CBD and THC We Found in Products.

Product Review

L-Lysine Supplements Review

Read L-Lysine Labels Carefully. Some Can Fool You.

Product Review

Prebiotic Supplements Review

You Can't Tell How Much Fiber Is Really In Most Prebiotics Without Testing

Prebiotics 2024 Expanded Review

Product Review

Reishi Mushroom Supplements Review

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

Reishi Mushrooms tested by ConsumerLab.com

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.

Sterol, Stanol, and Policosanol Supplements for Cholesterol-lowering Reviewed by ConsumerLab.com

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.

Plant Based Milks reviewed by ConsumerLab.com

Product Review

Vitamin E Supplements Review

Find the Best Vitamin E Supplement. Tests and Reviews of Popular Vitamin E Supplements & CL's Top Picks.

Vitamin E Supplements, Cream, and Oil Tested by ConsumerLab.com

Product Update

8/29/2025

Cadmium in Oats

A separate group reported cadmium levels in organic oats from One Degree and Bob's Red Mill. We’ve added information about this to our Oats Review, which includes our tests and Top Picks for rolled and steel-cut oats.

Clinical Update

5/28/2025

Cadmium in Oats

Concerning levels of cadmium, a toxic heavy metal, were recently reported in a popular oats product by a separate testing group. Get the details in our Oats Review, which includes our own results and our Top Picks for rolled and steel-cut oats.

Product Update

1/05/2026

Hot Cocoa Mix With a Side of Cadmium

A relatively large amount of cadmium was recently reported in a cacao powder drink mix – more than in any other reported cocoa mix. Get the details and comparisons of mixes from CHOQ LIT, Ghirardelli, Great Value, Nestle, Swiss Miss, and Trader Joe’s in our Dark Chocolates, Cocoa & Cacao Powders Review.

Product Update

1/12/2026

Cadmium in Chocolate Protein Powders?

Several popular brands of chocolate cocoa-based protein powders were recently tested for cadmium and lead by a separate group. Get the details, and see how the results compare to our findings, in our Protein Powders, Shakes, and Meal Replacements Review, which includes our Top Picks for protein.

Clinical Update

6/19/2025

Cadmium in Buckwheat

A separate testing group recently reported "concerning levels" of the toxin cadmium in one of our Top Pick gluten-free grains. Get the details and our take on this in our Gluten-Free Grains Review, which includes our Top Picks for buckwheat, quinoa, sorghum, millet and teff.

Clinical Update

6/24/2025

Cadmium in Buckwheat

A separate testing group recently reported "concerning levels" of the toxin cadmium in one of our Top Pick gluten-free grains. Get the details and our take on this in our Gluten-Free Grains Review which includes our Top Picks for buckwheat, quinoa, sorghum, millet and teff.

Clinical Update

6/24/2025

Cadmium & Lead in Popular Cocoa Powder

A separate testing group reported higher levels of cadmium and lead in a popular cocoa powder than we found in our 2022 tests. We now suggest caution with this product. Get the details in our Dark Chocolate and Cocoa Review, which includes our Top Picks among products. (Note: We will soon test cocoas and chocolates again. Product suggestions will be solicited from CL members in July.)

Clinical Update

2/27/2025

Cadmium in Tofu?

Cadmium is found in tofu, but is the amount dangerous? Find out in our article about foods and supplements that contain lead/other heavy metals.

Clinical Update

1/17/2018

FDA Finds High Cadmium in Cocoa Products

Researchers from the U.S. FDA recently reported finding high levels of cadmium in cocoas as well as cocoa nibs and dark chocolates — particularly in cocoas from certain parts of the world. The results are similar to what ConsumerLab has reported. For details, see the Dark Chocolate, Cocoa Powder, Nibs, Extracts & Supplements Review >>

Product Review

Bilberry Supplements Review

Choose the Best Bilberry Supplement. Some Bilberry Is Not Authentic!

Bilberry Supplements Reviewed by ConsumerLab.com

CL Answer

Do detox foot pads or ionic foot baths remove heavy metals or other toxins from the body?

Detox foot pads and ionic foot baths are promoted for removing heavy metals and other toxins from the body. Find out if there is evidence to support these claims.

Woman lying in bed wearing detox foot pads

CL Answer

Why Is There a California Prop 65 Warning on My Supplement?

Learn more about warning labels indicating that a supplement contains a chemical known to the State of California to cause cancer.

Woman Examining Supplement Bottle

News Release

May 12, 2025

Best & Worst Manuka Honey Identified by ConsumerLab Tests

White Plains, NY, May 12, 2025 -- Manuka honey is often promoted for wound healing, and for soothing sore throats, cough, acid reflux, and other conditions, due to its high concentration of the antibacterial compound methylglyoxal (MGO), and other compounds derived from the manuka bush.

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?

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

CL Answer

I heard somewhere to avoid chocolate with "processed with alkali" in the ingredients. Is that true?

Learn more about cocoa processed with alkali ("dutched") and its effect on flavanols.

Chocolate Powder in Spoon

CL Answer

Himalayan and Sea Salts: Health Benefits, Toxic Metals, & Microplastics

Himalayan salt health benefits, along with other gourmet salts like Hawaiian and Mediterranean. Info including what's in them and their safety.

Himalayan Salt -- spoonful of pink Himalayan salt

CL Answer

Is the theobromine in chocolate and cocoa good or bad for me?

Find out the benefits and risks of theobromine -- and how much is in dark chocolate.

Broken Bar of Chocolate on Pink Background

CL Answer

My doctor told me to stop taking supplements because my kidney function was low. After stopping, my kidney function returned to normal. Can taking a lot of supplements really damage the kidneys?

Find out which supplements may damage your kidneys. ConsumerLab explores possible kidney side effects of supplements including chromium, creatine, and vitamin C.

Can Supplements Really Damage Your Kidneys? -- Woman with kidney pain

Product Review

CLA (Conjugated Linoleic Acid) Supplements Review (for Slimming)

Choose the Best CLA Supplement. Not All CLA Supplements Contain What You Expect.

CLA Supplements Reviewed by ConsumerLab.com

CL Answer

Do sea moss and carrageenan have health benefits? Are there risks?

Sea moss is promoted for thyroid health, boosting immunity, improving gut health, and other uses. Find out if it works and learn about possible side effects of sea moss and its constituent, carrageenan.

Sea moss in a clear bowl next to a wooden spoon on the countertop

News Release

April 16, 2025

Best Bone Broths? ConsumerLab Shows How Much Collagen is Really in Bone Broths

White Plains, NY, April 16, 2025 -- Bone broth can be a good source of protein, particularly collagen. However, recent tests by ConsumerLab show that collagen levels ranged from just 1 gram to 6 grams per cup and only 6 out of 10 popular bone broth products could be Approved for quality.

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?

News Release

February 24, 2025

Widespread Mislabeling of Nutritional Yeasts Uncovered by ConsumerLab – 90% of Nutritional Yeasts Fail Tests

White Plains, NY, February 24, 2025—  Nutritional yeast can add a savory flavor to foods and be a good source of protein, fiber, and niacin. Fortified nutritional yeast can also provide vitamins B-6 and B-12, making it a common addition to vegan and vegetarian dishes.

CL Answer

Is spirulina safe? I heard that it can contain toxins, such as BMAA and microcystin toxin.

Is Spirulina safe? Find out if Spirulina contains toxins like BMAA and microcystin toxin.

Spirulina Powder and Pills

Clinical Update

1/06/2025

Heavy Metals in Multivitamins?

Tests conducted by a separate group reported "unsafe" levels of lead, arsenic, and/or cadmium in a children’s multi and a prenatal supplement (which ConsumerLab also tested). See our take on this in our Multivitamin and Multimineral Supplements Review, which includes our Top Picks among multivitamins.

Clinical Update

1/06/2025

Heavy Metals in Hemp Seeds?

Testing of Manitoba Harvest Organic Hemp Hearts by a separate group identified levels of cadmium and arsenic it considered unsafe for children. See our take on these results in our article about hemp seeds.

Clinical Update

5/24/2024

High Levels of Toxic Metals in Some Chocolates and Cocoas

Recent tests of common chocolates and cocoas sold in the U.S. identified several with disturbingly high levels of the toxic metals cadmium and lead. For details, see the Update in our Dark Chocolate and Cocoa Review. Also see our Top Picks among dark chocolates and cocoas.

Clinical Update

4/28/2023

Copper in Chocolate?

Chocolate and cocoa can be good sources of copper, an essential mineral. Find out how much copper is in chocolates and cocoa in the ConsumerTips section of our Dark Chocolate and Cocoas Review.

Also find out how much cadmium, a toxic heavy metal, we found in popular products, and see our Top Picks among dark chocolate bars, cocoa powders, and cocoa supplements.

Clinical Update

1/13/2025

Protein Powder Contamination

Recent tests of protein powders by a separate group showed that certain forms of protein were more likely than others to be contaminated with lead and cadmium. For details, see our Protein Powders Review, which includes our Top Picks for protein powders and shakes.

Clinical Update

1/21/2025

Which foods and supplements are most likely to contain lead?

We have identified 15 types of foods and supplements most likely to be contaminated with concerning amounts of lead, cadmium, arsenic, or mercury, based on our tests. See the list and learn more.

Clinical Update

3/14/2025

Toxin in Flaxseed

Despite our showing high levels of the toxin cadmium in some popular flaxseed products, responses from brands show that many are not doing enough to address this problem. See our take on responses from Bob’s Red Mill, Carrington Farms, Nature’s Path, Organic Traditions, Premium Farms, NOW Foods, Nuts.com, Terrasoul, and Wegmans. Also, see which flaxseeds passed or failed our tests and our Top Picks for flaxseed.

Clinical Update

4/02/2025

Lead in Prenatals

A group recently reported significant amounts of lead in 15 to 33% of prenatal supplements and prescription vitamins. Read more in the Quality Concerns section of our Multivitamins Review, which includes our Top Picks among multivitamins, including prenatal vitamins.

Also see: Which foods and supplements contain lead, cadmium, or arsenic?

Clinical Update

5/01/2025

Toxic Heavy Metals in Salt

How much lead, cadmium, arsenic, and mercury are in popular salts, sea salts, kosher salt, and herbed salt? See what tests by an independent group found in our article about heavy metals and microplastics in salt.

Product Update

9/25/2025

Heavy Metals in Cheerios?

A separate testing group reported "concerning" levels of cadmium and arsenic in Cheerios. Get the details and our take on the findings in our Oats Review, which includes our tests and Oats Review, which includes our tests and Top Picks for rolled and steel-cut oats.

Clinical Update

7/29/2025

Metals in Plant-Based Protein

Plant-based protein powders tend to contain higher amounts of lead and cadmium than whey-based products, according to a recent study. However, they may also contain significant amounts of essential minerals. Get the details in our Protein Powders, Shakes and Meal Replacements Review, which includes our Top Picks among protein supplements.

Product Update

9/16/2025

Arsenic in Mushroom Supplement?

Arsenic, lead, and cadmium above "Actions Levels" were recently report in a Host Defense mushroom product. Should you be concerned? Get our take on this in our Lion's Mane & Chaga Supplements Review. Also see our Top Picks for lion's mane, chaga, and reishi supplements.

Product Update

10/30/2025

Cocoa Showdown: Hershey's vs. Hershey's

Curious how Hershey's 100% Cocoa compares to Hershey's Special Dark Cocoa when it comes to lead and cadmium? Find out in our Dark Chocolate and Cocoa Review, which includes our Top Picks among cocoa powders, dark chocolates, nibs, and supplements.

Product Update

11/03/2025

How Safe Is Swiss Miss Cocoa?

How much lead and cadmium is in Swiss Miss Cocoa Mix? Find out and see how this compares to other cocoa mixes tested in our Dark Chocolate and Cocoa Review, which includes our Top Pick cocoa mix as well as our Top Picks among cocoa powders and dark chocolates.

Product Update

10/16/2025

Cacao Powder Concerns

Two organic cacao powders were found to have high levels of cadmium (a kidney toxin) in recent tests. Get the details in our Dark Chocolates, Cocoa, and Cacao Powders Review, which includes our Top Picks.

Product Update

12/08/2025

Heavy Metals in Nut Butters

Alarmingly high levels of the toxin cadmium are in some sunflower seed butters. Do peanut butters have the same problem? Find out in our Sunflower Seeds and Butters Review, which includes our Top Picks.

Product Update

2/05/2026

Heavy Metals in "Calm" Magnesium?

A recent independent report found lead, cadmium, and arsenic far above "Action Levels" in a Natural Vitality Calm magnesium supplement. Get our take on this in our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Product Update

2/12/2026

NEW TESTS!: High-Flavanol Cocoas

Looking to get the most cocoa flavanols, the least contamination (cadmium and lead), and at the best price? See our new Top Picks for high-flavanol cocoa powder and cocoa supplements! And see our other Top Picks for best dark chocolates and best-tasting cocoa powder.

Product Update

12/15/2025

Dark Chocolate & Cocoa: Winner and Losers!

Our tests showed that 7 out of 14 dark chocolate bars had high cadmium, as did 2 of 9 popular cocoa powders. See the results and our Top Picks in our new Dark Chocolates, Cocoa & Cacao Powders Review.

Clinical Update

4/20/2026

Home Lead Tests of Food?

Are there easy ways to test for lead in foods and supplements at home? Find out in our article: Which foods and supplements contain lead, cadmium, or arsenic?

Product Update

4/23/2026

Lead in Instant Coffee?

"Concerning" levels of lead, cadmium, and arsenic were reported in several popular instant coffees. Get the details and our take on this in our article, "Is it safe to drink coffee regularly?"

Product Update

5/11/2026

Protein Powder Concern

A concerning amount of cadmium was reported in a chocolate protein powder. Learn more in our Protein Powders & Shakes Review + see our Top Picks among protein powders and shakes.

News Release

February 06, 2025

Best Joint Health Supplements, According to ConsumerLab Tests

White Plains, NY, February 6, 2025 — Recent ConsumerLab tests of popular joint health supplements found several contained far less of one or more key ingredients than claimed.

Recalls & Warnings

September 30, 2025

Cinnamon Recalled Due to Lead Contamination

On September 26, 2025, SLR Food Distribution recalled Wise Wife ground cinnamon powder because FDA testing found it to be contaminated with elevated levels of lead.

News Release

January 23, 2025

ConsumerLab Tests Identify Best Black Currant, Borage, Evening Primrose Flax and Hemp Oils

White Plains, NY, January 23, 2025 —  Black currant, borage, evening primrose, flax, and hemp oils contain omega-3, -6, and/or -9 fatty acids that, when replacing saturated fats in the diet, may help reduce cardiovascular risk.

Recalls & Warnings

March 17, 2025

Zaarah Herbal Powders Recalled Due to Lead, Arsenic Risk

On March 10, 2025, New York Wholesale Group recalled Zaarah Herbals Rasayan Churan, Zaarah Herbals Gurmar Powder, Zaarah Herbals Vasaka Powder and Zaarah Herbals Bhringraj Powder because they have the potential to be contaminated with elevated levels of lead and arsenic.

Recalls & Warnings

January 28, 2025

Shatavari Powder Recalled Due to Risk of Lead Contamination

On January 27, 2025, New York Wholesale Group recalled Zaarah Herbals shatavari powder because of potential lead contamination.

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.

Fresh moringa leaves under a white bowl containing moringa leaf powder that is next to capsules of moringa leaf

Recalls & Warnings

August 19, 2015

Soylent Meal Replacement Powder Reported to Contain Lead and Cadmium

On August 13, 2015, an environmental-health watchdog group, As You Sow, filed a notice of intent to bring legal action against Soylent, a "meal replacement" powder, alleging violation of California's "Prop 65" Safe Drinking Water and Toxic Enforcement Act ...

Recalls & Warnings

November 05, 2021

Herb Recalled Due to Risk of Lead, Cadmium Contamination

On November 2, 2021, Murray Int'l Trading issued a recall of Herbal Doctor brand Angelicae Sinensis due to potential risk it may contain elevated levels of lead and cadmium.

CL Answer

What is the difference between fish oil and krill oil? Is one better than the other?

Learn which is better for you and compare krill oil vs. fish oil, including evidence from clinical studies, EPA and DHA content, price, and side effects.

CL Answer

Risks of Too Many Vitamins & Supplements

Taking too many vitamin supplements -- or taking too much of a particular supplement -- can have short and long-term adverse effects.

Too Many Vitamins

CL Answer

ConsumerLab’s Review of ION* Gut Support

ConsumerLab's Review of ION Gut Support (formerly Restore), the liquid humic extract supplement derived from soil. Learn about the evidence for ION Gut Support for on digestion and gut health, reducing inflammation, and other uses, dosage, cost, and safety.

ION Gut Support 3

Clinical Update

9/10/2014

Lead in Dark Chocolate

Our recent tests of cocoa-based products found problems with many popular brands of cocoa powders, which were high in cadmium and/or lead. No problem was found, however, with a widely-sold dark chocolate bar, which also had a good amount of potentially beneficial flavanols. A new report by academic researchers in Brazil shows that some dark chocolate bars do contain lead in excess of what the FDA permits (although brands were not identified.) More about this, as well as our test results for 15 cocoa products, is found in updated Review of Cocoa/Cacao Powders, Extracts, Nibs, Supplements, and Chocolate >> 

Clinical Update

4/21/2023

Five More Water Filter Pitchers Tested

We tested five more water filter pitchers (Aquagear, Berkey, Brita, Kirkland, and LifeStraw) and found surprising results.

While all did an excellent job of removing the heavy metals lead, cadmium, and mercury, pitchers varied dramatically in their ability to remove chlorine, (which affects taste), fluoride, arsenic, total dissolved solids (TDS), and microplastic particles. Be aware that some pitchers actually increase the amount of microplastics in water after filtering!

See our Top Picks for:

The Review also shows which additional contaminants products claim to reduce (such as PFAS, solvents, and microbes), explains why you shouldn't drink the first few pitchers of water when using a new filter, and what to do if your water pitcher is unusually slow.

See the Water Filter Pitchers Review and our video about it.

News Release

January 09, 2025

Not All Black Seed Oil Supplements Contain What They Claim, According to ConsumerLab

White Plains, NY, January 9, 2025 —  Black seed oil and extract supplements are promoted for controlling blood pressure, cholesterol, blood sugar, and arthritis pain, and more.

News Release

December 20, 2024

Best Zinc Supplements and Lozenges for Colds, According to ConsumerLab

White Plains, NY, December 20, 2024 —  Zinc is important for a healthy immune system and the right zinc lozenge can help reduce cold symptoms, but taking too much zinc causes adverse effects.

News Release

December 05, 2024

Some Oats Surprisingly High in Gluten, According to ConsumerLab Tests

White Plains, NY, December 5, 2024 —  Oats are a healthy source of fiber and naturally gluten-free. However, it’s not uncommon for oats to become contaminated with gluten during processing, which can cause problems for people with celiac disease and others who follow a gluten-free diet.

CL Answer

How significant are the risks to drinking tea from China from heavy metals?

Find out which types of tea from China pose the greatest risk of toxic heavy metal contamination, including green tea.

Heavy Metals in Tea From China -- pouring green tea into cup

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, black sugar, coconut sugar, honey, molasses and other sugar alternatives.

Stevia Health Benefits & Safety -- stevia leaf spoonful of stevia

News Release

September 26, 2024

What’s Really In Shilajit Supplements? ConsumerLab Tests Reveal Amounts of Fulvic Acid & Heavy Metals

White Plains, NY, September 26, 2024 -- Shilajit is a tar-like substance created by decomposed plant material and found in mountain rocks.

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

I developed a rash soon after starting a probiotic. Is it possible to be allergic to probiotics?

Find out if probiotics can cause allergic reactions, including skin rashes, and why.

Young Woman Scratching Forearm

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

Recalls & Warnings

August 03, 2023

Arsenic Poisoning in U.S. from Ayurvedic Supplements

A 75-year-old woman in California experienced arsenic poisoning after taking Ayurvedic supplements prescribed to her by a holistic energy healer, according to a report published in July in Clinical Case Reports.

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.

A cup of dandelion root tea on wooden background

CL Answer

What is the ingredient zeolite I see in Natural Cellular Defense and other detox supplements? Does it help in any way?

Learn what zeolite is and why it is found in many detox supplements like Waiora's Natural Cellular Defense, Get Healthy Again Zeolite, and Ultra Liquid Zeolite.

Natural Cellular Defense

CL Answer

There are many reports of lead contamination in turmeric spice. How can I make sure I'm not getting lead in my turmeric supplement or spice?

Find out how to avoid contaminated curcumin and turmeric supplements and spices, and see our Top Picks in our Curcumin/Turmeric Product Review.

Lead Contamination in Turmeric Spice & Supplements -- Spoonful of turmeric spice and turmeric pills

News Release

July 31, 2024

Best Calcium & Bone Health Supplements According to ConsumerLab Tests

White Plains, NY, July 31, 2024 —  Calcium is essential to maintaining bone health and plays critical roles in nerve transmission, muscle contraction, and the cardiovascular system.

News Release

July 30, 2024

ConsumerLab Tests Reveal Best Vitamin K Supplements

White Plains, NY, July 30, 2024 — Vitamin K helps with proper blood clotting as well as with calcium utilization in bones and the cardiovascular system.

News Release

May 07, 2024

ConsumerLab Tests Magnesium Supplements, Spots Problems and Selects a Top Pick

White Plains, NY, May 7, 2024 — Nearly half the U.S. population does not get adequate amounts of magnesium and may benefit from increasing magnesium intake from foods or supplementation.

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 28, 2023

10 Most Popular ConsumerLab Product Reviews of 2023

White Plains, New York, December 28, 2023 —  In 2023, ConsumerLab tested more than two hundred products, adding to its extensive Product Reviews covering 150 categories of supplements, foods, and other health products. Among these, the following 10 were the most popular in 2023:

News Release

December 13, 2023

Best Vitamin C Supplements? ConsumerLab Selects Its Top Picks

White Plains, New York, December 13, 2023 —  It’s officially cold season in the U.S., a time when many people may turn to vitamin C supplements to help “boost” their immune system and ward off colds.

News Release

May 03, 2023

Best Water Filter Pitchers In 2023 According to ConsumerLab Tests

White Plains, New York, May 3, 2023 — ConsumerLab tests of popular counter-top water filter pitchers show there are wide variations in the amounts of fluoride, arsenic, and microplastics these products remove from drinking water – in fact, some filter pitchers were found to increase the amount of ...

News Release

March 28, 2023

Expanded Flaxseed Testing by ConsumerLab Reveals More Cadmium Contamination – Several Quality Products Also Identified

White Plains, New York, March 28, 2023 — Due to concerning levels of cadmium ConsumerLab discovered in its tests of flaxseed products in January 2023, ConsumerLab recently purchased and tested seven additional whole and ground flaxseed products.

News Release

March 09, 2023

L-Theanine Supplements Reviewed by ConsumerLab. Top Pick Chosen.

White Plains, New York, March 9, 2023 —L-theanine supplements are often promoted to reduce stress and improve sleep and cognition.

News Release

February 13, 2023

Saffron Supplements Vary Widely in Key Compounds, According to ConsumerLab Tests

White Plains, New York, February 13, 2023 — Saffron extracts are promoted to treat mood, improve cognition and vision, and even reduce appetite.

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.

News Release

December 16, 2022

Is Your Chocolate or Cocoa Healthful or Toxic? ConsumerLab Finds Major Differences Among Products.

White Plains, New York, December 16, 2022 — Although dark chocolate and cocoa can be good sources of potentially heart-healthy, antioxidant flavanols, they can also be contaminated with toxic heavy metals such as cadmium and lead – and consumers can’t judge products from their labels.

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

October 06, 2022

Lion’s Mane and Chaga Supplement Labels May Mislead, According to ConsumerLab Tests

  White Plains, New York, October 6, 2022 — Lion’s mane and chaga supplements are often promoted to improve memory and mood, boost the immune system, and a range of other health benefits.

News Release

September 01, 2022

Big Differences in Strength of Olive Leaf Supplements in ConsumerLab Tests

  White Plains, New York, September 1, 2022 — Unlike olive fruit and olive oil, olive leaf contains significant concentrations of oleuropein, a potentially beneficial compound. Olive leaf extract supplements are often promoted for lowering blood pressure and blood sugar.

Clinical Update

3/12/2024

Lead in Meta Mucil

A CL member asked why Meta Mucil 4-in-1 Fiber powder was not tested by us this year. It is because of the lead contamination we found when we tested it in 2021, as noted in our recent report. Hoping to find less contamination, this year we tested Meta Mucil 3-in-1 capsules, as well as Meta Mucil Fiber Gummies (a prebiotic).

See our Top Picks among psyllium fiber and prebiotic fiber supplements.

Clinical Update

12/14/2021

Lead Contamination in Turmeric Spice

Elevated blood levels of lead in two children were linked to turmeric purchased from a local market in the U.S., according to a recent report. Get the details in the Quality Concerns section of our Turmeric and Curcumin Supplements & Spices Review, which includes our tests for lead contamination. See our Top Picks for turmeric.

Product Update

1/26/2026

Chia Seed Recall

A popular chia seed product is being recalled due to possible Salmonella contamination. For details, see our Chia Seed Review.

News Release

August 10, 2022

Best Lavender and Tea Tree Essential Oils Identified by ConsumerLab

  White Plains, New York, August 10, 2022 — Lavender essential oil as aromatherapy may reduce anxiety and tea tree essential oil is used topically for various skin ailments.

Recalls & Warnings

March 30, 2016

Toxins in Chocolate

On March 23, 2016, As You Sow, a consumer health watchdog group based in California, released results showing that 35 of 50 chocolate products it tested, including chocolate bunnies and eggs, expose consumers to lead and cadmium above levels set by California's Safe Drinking Water and Toxic ...

Recalls & Warnings

October 03, 2024

High THC, Toxic Heavy Metals, and Psilocybin Found in Hemp Products

Over 80% of hemp-derived products purchased at various smoke shops, gas stations and specialty CBD vape shops in Delaware were found to contain higher levels of THC (tetrahydrocannabinol, a psychoactive compound) than expected or permitted by law, according to a secret shopper survey conducted by ...

Recalls & Warnings

May 09, 2025

Organic Traditions Pumpkin Seeds Recalled in U.S. and Canada

On May 8, 2025, Advantage Health Matters Inc. recalled packages of Organic Traditions Organic Jumbo Pumpkin Seeds in the U.S. and Canada because they have the potential to be contaminated with Salmonella.

News Release

July 20, 2022

Best Electrolyte Drinks for Hydration? Note: Some Contain 20 Times More Sodium Than Others

  White Plains, New York, July 20, 2022 — It's important to stay well hydrated, and electrolyte products can help.

News Release

May 16, 2022

Best Calcium and Bone Health Supplements Revealed by ConsumerLab Tests

  White Plains, New York, May 16, 2022 — Calcium is essential for maintaining bones and plays critical roles in nerve transmission, muscle contraction, and the cardiovascular system.

News Release

April 02, 2022

ConsumerLab Discovers Less Vitamin K Than Listed in Some Supplements

  White Plains, New York, May 16, 2022 — Vitamin K plays an important role in proper blood clotting and calcium utilization in bones and is a common ingredient in bone health supplements.

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.

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

December 15, 2021

How Much Aloe Is Really in Aloe Products? ConsumerLab Tests Show Some Products Contain None

White Plains, New York, December 15, 2021 — Recent ConsumerLab tests of popular aloe juices, gels and supplements sold in the U.S. found substantial amounts of aloe in some products, while others contained very little.

News Release

November 05, 2021

NAD Boosters for Energy and Memory? ConsumerLab Reviews NAD+, NAHD and NMN Supplements

White Plains, New York, November 5, 2021 — Most cells in the body use NAD (nicotinamide adenine dinucleotide) in the process of energy production, and compounds that boost blood levels of NAD are often sold in supplements marketed for a wide range of benefits, from increasing energy and ...

News Release

July 23, 2021

Best Astaxanthin Supplements Identified In Testing by ConsumerLab

White Plains, New York, July 23, 2021 —Astaxanthin supplements are promoted for a wide range of uses, such as increasing physical endurance, reducing inflammation and wrinkles, protecting from sunburn, and lowering triglyceride levels.

News Release

May 18, 2021

Caution With Potassium Supplements: You Could Get More Than Expected

White Plains, New York, May 18, 2021 — Recent tests by ConsumerLab.com of popular potassium supplements on the market revealed that consumers to get much more or much less potassium than expected from certain products.

News Release

February 23, 2021

ConsumerLab Tests Reveal Best Prostate Supplements With Saw Palmetto and Beta-Sitosterol

White Plains, New York, February 23, 2021 — Over half of men over age 60 may experience increased urinary frequency, difficulty urinating, or other symptoms of an enlarged prostate, also known as benign prostate hyperplasia, or BPH.

News Release

February 06, 2021

One-Third of Echinacea Supplements Fail ConsumerLab Tests

White Plains, New York, February 6, 2021 — Echinacea is often promoted to help ward off colds, but recent ConsumerLab tests show that consumers may not always be getting what they expect when they buy an Echinacea supplement.

News Release

January 16, 2021

Best Resveratrol Products Revealed in ConsumerLab Review

White Plains, New York, January 16, 2021 — Resveratrol supplements are promoted for a wide range of uses, including lowering cholesterol and improving cardiovascular health, improving memory, reducing inflammation and slowing age-related macular degeneration.

News Release

December 22, 2020

Best and Worst Ginger Supplements, Chews & Spices Identified by ConsumerLab. Contamination, Less Ginger Than Expected in Some Products.

White Plains, New York, December 22, 2020 — Ginger is not only a popular spice but may reduce nausea from motion sickness and pregnancy and modestly decrease pain from osteoarthritis. Key compounds in ginger known as gingerols are believed to be active components of ginger.

News Release

December 11, 2020

Caution With Cinnamon: ConsumerLab Tests Reveal High Amounts of Toxin in Some Supplements and Spices

White Plains, New York, December 11, 2020 — Cinnamon is a favorite spice that may modestly help lower blood sugar levels, likely due beneficial proanthocyanidins (PACs).

News Release

October 21, 2020

Best Apple Cider Vinegar? Quality of Bottled Apple Cider Vinegars and Supplements Varies, According to ConsumerLab

White Plains, New York, October 21, 2020 — Apple cider vinegar is often promoted for lowering blood sugar levels, weight loss, "balancing" pH, and improving digestion.

News Release

October 12, 2020

Some Water Filter Pitchers May Worsen Water Quality. CL Tests Reveal Big Differences Among Filters

White Plains, New York, October 12, 2020 — Water filter pitchers claim to remove unwanted substances such as chlorine and toxic heavy metals from tap water.

News Release

July 10, 2020

Best and Worst Tuna, Salmon and Sardines? ConsumerLab Tests Reveal Amounts of Omega-3s and Toxic Heavy Metals in Canned and Packaged Fish

White Plains, New York, July 10, 2020 — Canned and packaged tuna, salmon and sardines can be an excellent source of omega-3 fatty acids, but some may also be contaminated with toxic heavy metals such as mercury and arsenic.

News Release

January 23, 2020

We Found the Best Dark Chocolates and Cocoas With the Least Contamination

White Plains, New York, January 23, 2020 — Dark chocolate and cocoa contain antioxidant flavanols that may be good for the heart and mind, but they can also contain high levels of the heavy metal cadmium, which is toxic to kidneys and can soften bones.

News Release

November 12, 2019

Best Magnesium Supplements Revealed by ConsumerLab

White Plains, New York, November 12, 2019 — Many people do not get adequate amounts of magnesium from their diets, or may have lower levels of this essential mineral due to certain medical conditions or the use of common medications such as Nexium and Prilosec.

News Release

October 04, 2019

ConsumerLab Tests Reveal Best Collagen Supplements for Wrinkles and Joints

White Plains, New York, October 4, 2019 — Collagen supplements are promoted to reduce wrinkles and decrease joint pain and stiffness, but do they really work, and if so, which products on the market provide the best quality collagen and the best value? To find out, ConsumerLab carefully ...

Recalls & Warnings

April 30, 2026

Ghirardelli Cocoa, Hot Chocolate and Beverage Mixes Recalled Due to Salmonella Risk

On April 27, 2026, Ghirardelli Chocolate Company recalled 13 Ghirardelli powdered beverage mixes due to possible Salmonella from a contaminated milk source.

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

June 10, 2025

Zicam and Orajel Swabs Recalled

On June 6, 2025, Church & Dwight Co., Inc. recalled all lots within expiry of Zicam Cold Remedy Nasal Swabs, Zicam Nasal AllClear Swabs, and Orajel Baby Teething Swabs due to potential microbial contamination identified as fungi in the cotton swab components.

News Release

April 25, 2019

Best Coconut Water? ConsumerLab Tests Popular Products, Reveals Top Pick

White Plains, New York, April 25, 2019 — Coconut water is often promoted as a healthy way to stay hydrated and a natural alternative to sports drinks.

News Release

March 07, 2019

Best Coconut and MCT Oils Identified by ConsumerLab

White Plains, New York, March 7, 2019 — Coconut oil is often promoted as a "healthy fat" and an alternative source of energy to help with weight loss and in conditions such as Alzheimer's disease because it contains medium chain triglycerides (MCTs).

News Release

January 31, 2019

Contamination Still an Issue in Some Greens and Whole Food Products, ConsumerLab Tests Reveal

White Plains, New York, January 31, 2019 — Powders and capsules containing ingredients such as wheat grass, spirulina, chlorella, and fruits and vegetables are a popular way to get vitamins, minerals and other plant-based nutrients, but past tests by ConsumerLab have found that these products ...

News Release

January 03, 2019

ConsumerLab Tests Reveal the Best Protein Powders, Shakes and Drinks -- 20% of Protein Powders and Drinks Fail CL's Tests of Quality

White Plains, New York, January 3, 2019 — Combined with resistance exercise, protein supplements can help athletes build muscle and older people prevent muscle loss. They can also help people with diabetes maintain blood sugar levels when consumed as part of a low-calorie diet.

News Release

November 19, 2018

Tests Reveal Best Fish Oil Supplements and How They Compare to Prescription Fish Oil

White Plains, New York, November 19, 2018 — Fish and marine oil supplements containing the omega-3 fatty acids EPA and DHA offer a range of potential benefits for improving mental health, reducing inflammation, and even cancer prevention.

News Release

October 26, 2018

Best Vitamin A Supplements, Including Cod Liver Oils, Identified by ConsumerLab

White Plains, New York, October 26, 2018 — Vitamin A is necessary to maintain good vision, skin, and immune functioning, and supplementation can be beneficial for certain conditions — although most people get enough from food and getting too much vitamin A can be dangerous.

News Release

September 12, 2018

Little Omega-3 and High Mercury Found In Some Canned Tuna -- Better Choices Selected for Tuna and Salmon

White Plains, New York, September 12, 2018 — Some popular canned tuna contain much lower amounts of omega-3 fatty acids than recommended for cardiovascular benefits while being high in mercury and/or arsenic, according to tests by ConsumerLab.com.

News Release

May 31, 2018

ConsumerLab Identifies the Best Valerian Supplements -- Strength, Quality and Cost Vary Widely Among Popular Brands

White Plains, New York, May 31, 2018 — Valerian is often promoted as a sleep aid and to help with anxiety. But does it really work, and if so, which products are best? To find out, ConsumerLab recently purchased and tested popular valerian supplements sold in the U.S.

News Release

May 10, 2018

Big Differences Found Among Green Teas -- ConsumerLab Tests Identify Best Green Tea in Bags, Matcha, Supplements, and Bottles --

White Plains, New York, May 10, 2018 — The benefits of green tea use are associated with the presence of natural polyphenols known as catechins, such as EGCG.

News Release

May 02, 2018

Best Probiotic Supplements and Kombuchas? -- ConsumerLab Tests 41 Popular Products, Reveals Problems and Top Picks

White Plains, New York, May 2, 2018 — With so many different probiotic supplements on the market, each providing different amounts and strains of beneficial bacteria or yeast, choosing the right one can be an overwhelming task.

News Release

March 27, 2018

You Can't Always Rely on Bone Broth Labels -- ConsumerLab Tests Reveal How Much Protein, Collagen and Sodium Is Really In Bone Broths

White Plains, New York, March 27, 2018 — Bone broth is promoted as a natural source of collagen, an immune-booster, and a remedy for everything from joint pain to wrinkles.

News Release

February 15, 2018

Tests Reveal How Much CBD is Really in CBD and Hemp Oils -- Some Don't Provide Amounts of CBD Listed on Labels

White Plains, New York, February 15, 2018 (UPDATED 2/11/19) — CBD (cannabidiol) has become popular for treating pain, helping with anxiety and insomnia, and a variety of other conditions, despite the fact that the FDA has stated it cannot legally be sold as a ...

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.

News Release

July 19, 2017

New Tests Reveal Whether Dark Chocolates and Cocoas Are Toxic or Healthful

White Plains, New York, July 19, 2017 — Dark chocolates and cocoa may contain dangerously high levels of the heavy metal cadmium, a kidney toxin, according to recent tests conducted by ConsumerLab.com, an independent evaluator of health and nutrition products.

News Release

November 15, 2016

ConsumerLab.com Finds Arsenic in Testing of Potassium Supplements -- Safer Choices Identified. Many Americans May Need More Potassium

White Plains, New York, November 15, 2016 — During a recent analysis of potassium supplements sold in the U.S. and Canada, ConsumerLab.com discovered significant contamination with the toxic heavy metal arsenic in pills from one brand.

News Release

September 26, 2016

60% of St. John's Wort Supplements Fail ConsumerLab.com Tests of Quality

White Plains, New York, September 26, 2016 — St. John's wort extracts can be as effective as standard antidepressant drugs for treating mild to moderate major depression, with significantly fewer side effects. However, recent ConsumerLab.com tests revealed that six of ten St.

News Release

September 13, 2016

Best Fish Oil? ConsumerLab.com Tests 44 Popular Omega-3 Supplements and Identifies Its Top Picks

White Plains, New York, September 13, 2016 — Fish oil and omega-3 fatty acid supplements containing EPA and DHA are among the most popular supplements, and clinical studies suggest a wide range of potential benefits, from improving mental health to treating inflammatory disease.

News Release

August 30, 2016

Surprising Results in Oat Cereals Study by ConsumerLab.com -- Popular Brands Tested for Fungal Toxin, Gluten and Heavy Metals

White Plains, New York, August 30, 2016 — Cheerios, rolled oats, steel-cut oats and other oat cereals can be a healthy choice for breakfast.

News Release

August 08, 2016

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.

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

July 05, 2016

80% of Milk Thistle Supplements Fail ConsumerLab.com Tests of Quality -- Most Found to Be Low in Key Component

White Plains, New York, July 5, 2016 — Milk thistle supplements naturally contain silymarin compounds which may be helpful in certain liver diseases as well as type 2 diabetes. However, recent ConsumerLab.

News Release

June 15, 2016

28% of Protein Powders and Drinks Fail ConsumerLab.com's Tests of Quality

White Plains, New York, June 15, 2016 — Protein powders and drinks can help build and maintain muscle when combined with exercise and can also help with blood sugar control. However, recent ConsumerLab.

News Release

March 22, 2016

Rhodiola: Does It Help With Depression and Anxiety and Which Brands Are Best? -- ConsumerLab.com Reviews the Evidence and Tests the Quality of Popular R. Rosea Supplements --

White Plains, New York, March 22, 2016 — Rhodiola (R. rosea) supplements are promoted to treat depression, anxiety, and fatigue — but do they really work? And do products on the market contain the right species, amounts, and appropriate doses of R.

News Release

March 01, 2016

Does Echinacea Really Help With Colds and Which Brands Are Best?

White Plains, New York, March 1, 2016 — Echinacea supplements are a popular choice for preventing colds and treating cold symptoms, but do they really work? And, with so many different types of Echinacea marketed, how do you know which one to choose? To answer these questions, ConsumerLab.

News Release

January 12, 2016

Problems Found with 32% of Multivitamin/Multimineral Supplements -- ConsumerLab.com Identifies Good Choices for Men, Women, and Children

White Plains, New York, January 12, 2016 — You can't always judge a supplement by its label -- or by its price, according to a new report from ConsumerLab.com, which recently tested dozens of multivitamin/multimineral supplements.

News Release

October 14, 2015

Is Matcha a Better Form of Green Tea? ConsumerLab.com Answers the Question

White Plains, New York, October 14, 2015 — For the past three years, ConsumerLab.com has been testing green tea products, including tea bags, bottled drinks, dietary supplements, and even a K-Cup®.

News Release

July 01, 2015

Tests of Maca "Enhancement" Supplements Find Real Maca, But Some Lead Contamination and Seemingly Excessive Amounts of Rice Filler

White Plains, New York, July 1, 2015 — It's touted for increasing stamina and sexual performance and sales have steadily increased for more than a decade, but do maca supplements really contain this root indigenous to Peru? To answer this question, ConsumerLab.

News Release

April 28, 2015

Best Supplements for Bone Health? ConsumerLab.com Finds Products with Multiple Ingredients More Likely to Contain Wrong Amounts

White Plains, New York, April 28, 2015 — Vitamin D and calcium each play a crucial role in bone health and are among the most popular supplement ingredients in the U.S., but recent ConsumerLab.

News Release

March 05, 2015

ConsumerLab.com Shows Chinese Consumers What's Really in Foods and Supplements -- U.S. Testing Company Expands to China, Launches cn.ConsumerLab.com

White Plains, New York, March 5, 2015 — Since 1999, American consumers and doctors have turned to ConsumerLab.com (CL) to find out which nutritional products are highest in quality based independent testing. Today, CL launched a Chinese-language website cn.ConsumerLab.

News Release

January 20, 2015

ConsumerLab.com Identifies Best Vitamin A Supplements, But Cautions That Most People Don't Need Them

White Plains, New York, January 20, 2015 — Vitamin A supplements can save your sight and reduce your risk of infection if you are vitamin A deficient. However, deficiency is rare in the U.S., where people are more likely to be at risk for excess vitamin A.

News Release

January 06, 2015

Only 25% of Ashwagandha Supplements Pass ConsumerLab.com Review

White Plains, New York, January 6, 2015 —"It's very hard to find a good ashwagandha supplement," notes Tod Cooperman, M.D., President of ConsumerLab.com, the health product testing company which recently completed evaluations of ashwagandha herbal supplements.

News Release

November 25, 2014

You Can't Judge a Dark Chocolate Bar by Its Label, According to Tests by ConsumerLab.com -- Amounts of Cocoa Flavanols Vary Widely Among Popular Brands of Chocolate

White Plains, New York, November 25, 2014 — Which dark chocolates provide the most cocoa flavanols — natural antioxidants associated with better blood flow and memory? Recent tests by ConsumerLab.

News Release

August 05, 2014

ConsumerLab.com Finds Popular Cocoa Powders Contaminated; High Concentrations of Cadmium Raise Concern

White Plains, New York, August 5, 2014 — Following up on its discovery in May of high levels of the toxic metal cadmium in several cocoa-based products, ConsumerLab.com recently tested additional, popular cocoa products sold in the U.S. to assess the extent of the problem.

News Release

May 21, 2014

Your Cocoa May Be Contaminated! ConsumerLab.com Reveals What’s Really in Cocoa and Chocolate Products

White Plains, New York, May 21, 2014 [See related new release on 8/5/14] — Cocoa powders, dark chocolates, and other products made from cacao beans can be rich in flavanols -- which may help with blood flow, blood pressure, and cholesterol levels.

News Release

May 07, 2014

Flaxseed and Other Popular Seed Oil Supplements Tested by ConsumerLab.com, But Not All Brands Pass -- Flaxseed, Black Currant, Borage and Evening Primrose Oils Reviewed

White Plains, New York, May 7, 2014 — Plant seed oils are popular supplements that provide omega-3 and omega-6 fatty acids, but which products offer the best value and quality? Recent analyses by ConsumerLab.

News Release

December 16, 2013

What's Really in Turmeric Supplements and Spices? You May Not Want to Know -- 33% of Turmeric/Curcumin Supplements Fail ConsumerLab.com's Review; Filth Found in Spices

White Plains, New York, December 16, 2013 — Supplements containing the herb turmeric or its key constituent, curcumin, are popular treatments for inflammatory diseases. ConsumerLab.

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.

News Release

September 19, 2013

What's Really in Resveratrol Supplements? Some Contain Little Resveratrol or Do Not Meet Quality Standards According to ConsumerLab.com

WHITE PLAINS, NEW YORK — September 19, 2013 — Resveratrol supplements have been popular since 2006, when studies in animals showed "life-extending" and "endurance-enhancing" effects, among other potential benefits. In fact, a recent survey by ConsumerLab.

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

May 21, 2013

Green Teas Vary in Strength and Amount of Lead Contamination, According to ConsumerLab.com

White Plains, New York, May 21, 2013 — If you drink green tea for your health, be aware that the catechin and caffeine levels can vary by more than 240% across products. Some also contain significant amounts of lead in their tea leaves. This is according to recent tests by ConsumerLab.

News Release

February 11, 2013

ConsumerLab.com Reports Problems with Some Vitamin D and Calcium Supplements -- Wrong Amounts of Vitamin D, Pills Which Don’t Break Apart, and Lead Contamination Found

White Plains, New York, February 11, 2012 — Vitamin D and calcium are among the most popular supplement ingredients in the U.S., but recent tests by ConsumerLab.com show problems with 4 out of 25 products which contain these ingredients.

News Release

February 16, 2011

Some turmeric and curcumin supplements fail quality review -- ConsumerLab.com finds 20% of turmeric supplements selected for review deliver less than 15% of promised compounds

WHITE PLAINS, NEW YORK — FEBRUARY 16, 2011 — Supplements containing the herb turmeric or its key compound, curcumin, have become popular in the U.S. ConsumerLab.com cautioned today that two out of ten turmeric products recently selected for quality testing were found to provide only 7.

News Release

December 02, 2010

ConsumerLab.com Finds Lower-priced Resveratrol Supplements Pass Tests While Some Higher-priced brands flunk

WHITE PLAINS, NEW YORK — DECEMBER 2, 2010 — ConsumerLab.com reported today that tests of supplements containing resveratrol — a compound promoted as "life-extending" — revealed that two products provided only 43.4% and 86.

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

May 05, 2010

Tests of protein powders and drinks show some lead contamination but no melamine -- New report covers whey, soy, and rice protein supplements for body building, endurance/recovery, meal-replacment and dieting

WHITE PLAINS, NEW YORK — MAY 5, 2010 — New tests by ConsumerLab.com found most protein powders, shakes and drinks to meet their nutrient claims, but two products were contaminated with lead (6 to 18 mcg per day) and a third product contained four extra grams of sugar.

News Release

April 14, 2010

ConsumerLab.com reports most St. John's wort supplements fail quality tests -- An effective antidepressant herb but heavy metal contamination and low potency are concerns

White Plains, New York — April 14, 2010 — St. John's wort has been shown to be effective in treating mild to moderate forms of major depression, but a new report from ConsumerLab.com shows that few of the herbal supplement brands recently tested met quality standards. Among the ten St.

News Release

December 09, 2008

Tests of zinc supplements by ConsumerLab.com show only some provide dosage proven to shorten colds, reduce eye disease. Lead contamination found in one product.

WHITE PLAINS, NEW YORK — DECEMBER 9, 2008 — Zinc supplements can shorten colds and reduce the progression of advanced macular degeneration, among other uses. But a new report by ConsumerLab.

News Release

December 08, 2008

ConsumerLab.com asks USP to adopt safer lead limit for drugs and supplements. Warns that lead contamination may worsen if USP accepts currently proposed allowance.

WHITE PLAINS, NEW YORK — DECEMBER 8, 2008 — ConsumerLab.com petitioned the United States Pharmacopeia (USP) today to lower its proposed limit on lead contamination in drugs and dietary supplements. The USP recently proposed a limit of 10 mcg (micrograms) of lead per daily serving.

News Release

September 17, 2008

ConsumerLab.com's tests of menopause supplements reveal wide range in strength and quality; mislabeling and contamination discovered -- Soy and red clover isoflavones, black cohosh, and progesterone products tested

WHITE PLAINS, NY — September 17, 2008 — Risks associated with traditional hormone therapy for symptoms of menopause have increased public interest in alternative treatments, particularly dietary supplements. But a report today of recent tests by ConsumerLab.

News Release

November 13, 2007

ConsumerLab.com finds some "red wine" supplements deliver less resveratrol than expected; Wide range in dose and price

WHITE PLAINS, NEW YORK — NOVEMBER 13, 2007 — ConsumerLab.com reported today that its tests of supplements containing resveratrol — a compound promoted as "life-extending" — revealed two products providing only 27% and 58% of their listed amounts of resveratrol.

News Release

February 14, 2007

ConsumerLab.com reports on anti-depressant herb — St. John's Wort — Few supplements pass quality testing

WHITE PLAINS, NEW YORK — FEBRUARY 14, 2007 — St. John's wort may be helpful in treating mild to moderate cases of clinical depression, but a new report from ConsumerLab.com shows that few of the herbal products tested met quality standards. Americans purchased $64 million of St.

News Release

August 15, 2006

Over 70% of herbal sleep supplements fail tests for quality by ConsumerLab.com — Results for 16 valerian products released today

WHITE PLAINS, NEW YORK — AUGUST 15, 2006 — Most of the valerian dietary supplements recently tested by ConsumerLab.com were low in potency and/or contaminated, the testing company reported today. Valerian, an herbal sleep aid, accounts for approximately $50 million in sales in the U.S.

Recalls & Warnings

June 25, 2025

Topo Chico Mineral Water Recalled Due to Potential Bacterial Contamination

On May 28, 2025, The Coca-Cola Company initiated a recall of 241 cases of Topo Chico Mineral Water Carbonated due to the potential for contamination with Pseudomonas bacteria.

News Release

August 31, 2005

ConsumerLab.com testing of alpha lipoic acid supplements from Japan finds no ingredient in one product; Most others meet claims — Japanese consumers urged to research product quality

WHITE PLAINS, NY — ConsumerLab.com reported this week that among nine brands of alpha lipoic acid supplements it recently purchased in Japan and tested, one contained none of the popular ingredient and another contained only 81%.

News Release

June 20, 2005

Quality problems widespread among ginseng products sold in Japan. — Nearly two-thirds of products fail ConsumerLab.com testing due to pesticide contamination and missing or substandard ingredients

WHITE PLAINS, NY — JUNE 20, 2005 — Among 14 brands of ginseng dietary supplements recently purchased in Japan and tested by ConsumerLab.com, only 5 products passed independent testing by ConsumerLab.com.

News Release

June 15, 2005

Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available.

WHITE PLAINS, NY — JUNE 15, 2005 — ConsumerLab.com has released its latest report on the quality of magnesium supplements sold in the U.S. In addition to being an essential mineral, magnesium may help prevent migraine headaches, menstrual pain, PMS, and leg cramps during pregnancy.

News Release

December 14, 2004

ConsumerLab.com finds Omega-3 fish oil supplements safer than fish but quality varies among brands — Test of 41 Supplements Finds No Mercury or PCB Contamination, But Some Spoiled or Lacking Claimed Oils

WHITE PLAINS, NY — Tuesday, December 14, 2004 — ConsumerLab.com announced today that tests of 41 omega-3 fish oil supplements (including 3 marketed for pets) showed safe levels of mercury and PCBs.

News Release

July 07, 2004

ConsumerLab.com finds several herbal sleep supplements fail tests for quality — Results for 13 valerian products released today

WHITE PLAINS, NY — Wednesday, July 7, 2004 — ConsumerLab.com announced today that five valerian dietary supplements failed to pass recent testing due to low potency and/or contamination. Valerian, an herbal sleep aid, accounted for $47 million in sales in the U.S.

News Release

April 27, 2004

New ConsumerLab.com report on St. John's wort highlights benefits and risks of herbal product for depression

NEW CONSUMERLAB.COM REPORT ON ST.

News Release

July 16, 2002

ConsumerLab.com finds lead contamination remains a problem for certain mineral supplements — Lead found in iron, magnesium and, most recently, potassium pills

WHITE PLAINS, NY — July 16, 2002 — ConsumerLab.com announced today that its testing has shown that approximately 5% to 10 % of certain mineral supplements are contaminated with lead. The findings are based on ConsumerLab.

News Release

April 10, 2001

Quality of popular herbal anti-depressant found to vary; certain types of St. John's Wort supplements more likely to pass testing

White Plains, NY — April 11, 2001 — ConsumerLab.com, an independent evaluator of dietary supplements and nutrition products, today released results of its Product Review of St. John's wort supplements.

News Release

July 11, 2000

Pesticide contamination found in many Ginseng supplements tested by ConsumerLab.com

WHITE PLAINS, NY, July 11, 2000 — Out of 22 brands of ginseng dietary supplements evaluated by ConsumerLab.com eight were found to contain high levels of specific pesticides, some of which also contained significant levels of lead.

Recalls & Warnings

April 25, 2017

Soylent Powder Recalled Due to Allergen Risk

On April 24, 2017, Soylent issued a recall of 890 boxes (containing 7 x 15 oz pouches) of Soylent 1.8 Powder, because the product may contain undeclared milk.

Recalls & Warnings

October 13, 2016

Soylent Recalls Bars As It Investigates Complaints of Gastrointestinal Issues

On October 12, 2016, Soylent announced it is halting all Soylent Bar purchases and shipments while it investigates consumer complaints of gastrointestinal issues, such as vomiting and diarrhea, after consuming the bars.

Recalls & Warnings

August 03, 2023

Ozona Organics Liquid Probiotics Recalled Due to Risk of Microbial Contamination

On August 1, 2023, Ozona Organics, LLC recalled certain lots of its probiotic supplement, Ozona Probiotics for Digestive Health, also labeled as GoHealthy Probiotics for Infants, Toddlers, and Kids and GoHealthy Probiotics for Infants, Kids, Men, and Women, due to the ...

Recalls & Warnings

August 28, 2023

Dr. Berne’s MSM and Castor Oil Eye Drops Recalled Due to Bacterial and Fungal Contamination

On August 26, 2023, Dr. Berne’s Whole Health Products issued a recall of all lots of its MSM DROPS 5%, 15% Solution, Dr. Berne’s Organic Castor Oil Eye Drops and Dr. Berne’s MSM MIST 15% Solution due to the risk of bacterial and fungal contamination.

Recalls & Warnings

July 19, 2024

Walnuts Recall Due to Listeria

On July 19, 2024, Stutz Packing Company recalled its 1-pound packages of Shelled Walnuts due to potential contamination of Listeria monocytogenes. Routine sampling realized that the finished products contained bacteria. Currently, there have been no reports of illness related to this call.

Recalls & Warnings

December 14, 2023

FDA Warns Seller of Novid NASAL SPRAY for Allergy, Virus, and Cold Claims

On December 7, 2023, the FDA issued a warning to Novid Group, Inc. following an inspection of the company’s website, which found statements about the company’s novid NASAL SPRAY product to be drug claims.

Recalls & Warnings

November 16, 2023

Toxic Levels of Lead Found in Cinnamon Applesauce

WanaBana, Schnucks, and Weis apple cinnamon fruit puree pouches have been recalled after being linked, as of December 5, 2023, to 64 reports of illness, including four children with potential lead toxicity.

Recalls & Warnings

January 13, 2022

Senna Laxative Recalled Due to Microbial Contamination

On January 11, 2022, Lohxa LLC issued a voluntary recall of one lot of Senna Syrup 8.

Recalls & Warnings

August 08, 2022

Recall of Oral Magnesium Laxatives Expanded

On August 3, 2022, Plastikon Healthcare, LLC issued a recall of multiple oral suspension products due to microbial contamination.

Recalls & Warnings

December 01, 2021

Probiotics Recalled Due to Bacterial Contamination, May Be Life-Threatening to Some

On December 1, 2021, Livia Global, Inc issued a voluntary recall of two lots of probiotics due to potential contamination with Pseudomonas aeruginosa. This bacterium, if ingested, can cause life-threatening infection in immunocompromised individuals.

Recalls & Warnings

June 13, 2022

Homeopathic Nasal Spray SnoreStop Recalled Due to Microbial Contamination

On June 9, 2022, Green Pharmaceuticals Inc issued a voluntary nationwide recall of one lot of its SnoreStop NasoSpray, a homeopathic nasal spray promoted to reduce snoring, due to the presence of Providencia rettgeri, a bacterium that can cause severe illness in some people.

Recalls & Warnings

May 08, 2023

SD Biosensor Pilot At-Home COVID-19 Tests Recalled Due to Bacterial Contamination

On May 4, 2023, the FDA warned consumers and health care providers not to use certain lots of Roche Diagnostics’ SD Biosensor, Inc. Pilot COVID-19 At-Home Tests due to bacterial contamination in the test kit’s liquid solution.

Recalls & Warnings

July 18, 2022

CVS, Target, Walgreens, and Other Oral Magnesium Citrate Laxatives Recalled Due to Bacterial Contamination

On July 14, 2022, Magnesium Citrate Laxative Oral Solution Lemon Flavor products manufactured by Vi-Jon, LLC and sold under various store brand names were recalled after testing identified the presence of the bacteria Gluconacetobacter liquefaciens.

Recalls & Warnings

November 02, 2021

Probiotic Recalled Due to Risk of Bacterial Contamination

On October 29, 2021, Mary Ruth's issued a recall of two lots of Mary Ruth's Liquid Probiotic for Infants due to potential contamination with Pseudomonas aeruginosa. This bacterium can cause infection in people who are immunocompromised, and rarely, in infants.

Recalls & Warnings

October 01, 2019

Lead and Arsenic Found in Multi Mineral & Vitamin Supplement

On September 30, 2019, Cellect Products Inc. and Oglethorpe Ltd. issued a recall of one lot of Cellect®, Essentials Factor® Multi Mineral & Vitamin Supplement Unflavored Powder Mix because it was found to contain unsafe levels of lead and arsenic.

Recalls & Warnings

December 11, 2020

Goldenseal Recalled Due to Microbial Contamination

On December 4, 2020, WishGarden Herbs, Inc. issued a recall of 14 lots of Cord Care Powder and Goldenseal Powder because they were manufactured using ingredients that were potentially contaminated with the bacterium Cronobacter sakazakii.

Recalls & Warnings

February 03, 2015

Major Retailers Accused of Selling Adulterated Herbal Supplements

On February 3, 2015, the New York State Attorney General announced that his office sent letters to four major retailers, GNC, Target, Walmart, and Walgreens, for allegedly selling store brand herbal supplement products in New York that either could not be verified to contain the labeled substance, ...

Recalls & Warnings

May 16, 2020

CBD Oil Recalled, Risk of High Lead Exposure

On May 15, 2020, Summitt Labs issued a recall of one batch of KORE ORGANIC Watermelon CBD Oil Tincture due to contamination with lead. A random sample of this product tested by the Florida Department of Agriculture and Consumer Services found it to contain lead levels at 4.7 ppm.

Recalls & Warnings

February 22, 2021

Canadian Creatine Recalled for Dangerous Levels of Vitamin D

On February 21, 2021, the Canadian company Genex Nutraceuticals recalled one lot of Perfect Sports Core Series Pure Creatine (also known as Creatine Powder) because it "contains vitamin D that is not listed on the label, at dangerous levels.

Recalls & Warnings

July 21, 2020

51 CBD Products Recalled Due to Lead Contamination

On June 23, 2020, InHe Manufacturing, LLC and MHR Brands issued a recall of fifty-one CBD products due to contamination and/or potential with lead. Thirty-six of the products are marketed for people and fifteen of the products are marketed for pets.

Recalls & Warnings

September 18, 2015

High Levels of Mercury and Lead Found in Ayurvedic Herbal Supplements

On September 17, 2015, the FDA announced that Shree Baidyanath Ayurved Bhawan Ayurvedic dietary supplements were found to contain high levels of lead and/or mercury, which can cause serious health problems.

Recalls & Warnings

May 29, 2014

Chia Powders and Smoothies Recalled Due to Salmonella Risk

On May 28, 2014, Navitas Naturals issued a voluntary recall of products containing its organic sprouted chia seed powder because they have the potential to be contaminated with Salmonella.

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).

Recalls & Warnings

February 17, 2018

FDA Reports Prevalence of Salmonella In Retail Spices

An FDA study of 11 different types of spices sold in retail stores throughout the U.S. found the prevalence of Salmonella contamination to be less than 1%. Overall, this was significantly lower than when the same types of spices were tested at the time of import to the U.S.

Recalls & Warnings

November 08, 2016

Chinese Herbal Supplement With Lead Contamination Recalled

On November 7, 2016, Ton Shen Health issued a recall its Life Rising brand of Side Head Regulator TT tablets because they were found to contain elevated levels of lead for children under the age of 18.

Recalls & Warnings

March 06, 2013

Protein Bar Recalled Due To Salmonella Risk

On March 4, 2013, Pro-Amino International Inc. issued a recall of Proti Diet High Protein Chocolate Dream Bar due potential Salmonella contamination.

Recalls & Warnings

February 21, 2013

Nutrition Drink Recalled Due To Bacterial Contamination

On February 21, 2013, Sequel Naturals Ltd. issued a voluntary recall of three lots of Vega One French Vanilla nutritional shake due to bacterial contamination.

Recalls & Warnings

August 18, 2017

FDA Warns Consumers Not to Use Certain Liquid Multis, Vitamin D, and Other Supplements Due to Potential Bacterial Contamination

On August 11, 2017, the FDA advised the public not to use any liquid drug or dietary supplement products manufactured by PharmaTech LLC of Davie, Florida, and labeled by Rugby Laboratories, Major Pharmaceuticals, and Leader Brands, because they have the potential to be contaminated with ...

Recalls & Warnings

August 24, 2012

Protein Shots, Drinks and Gelatin Recalled For Potential Botulism Contamination

On August 17, 2012, Protica Inc.

Recalls & Warnings

July 10, 2012

Children's Probiotics Recalled Due to Potential Salmonella Contamination

On July 9, 2012, Sedona Labs announced the voluntary recall of certain lots of iFlora Kids Multi-Probiotic and iFlora 4-Kids Powder distributed between 3/16/2011 and 5/3/2012 due to potential contamination with Salmonella.

Recalls & Warnings

March 03, 2012

FDA Warns Vitaganic of Manufacturing Violations

On February 8, 2012, the U.S. FDA sent a Warning Letter to Vitaganic, Inc. regarding violations of Current Good Manufacturing Practic (CGMP) regulations for dietary supplements found during an inspection of it manufacturing facility in Sunnyvale, California in October 2011.

Recalls & Warnings

December 20, 2011

Organic Celery Seed Products Recalled Due to Potential Salmonella Contamination

On December 16, 2011, the U.S. FDA posted a notice from Swanson Health Products regarding the recall of Swanson Organic Celery Seed (Whole) which is packaged in plastic bottles with a net weight of 1.4 oz. (40 grams) because it has the potential to be contaminated with Salmonella.

Recalls & Warnings

February 15, 2013

Energy Drink Recalled Due To Bacterial Contamination

On December 21, 2012, NBTY issued a voluntary recall of the energy supplement MET-Rx Extreme Thermo Rage Watermelon 8 fl. oz. (Manufactured by MET-Rx Nutrition, Inc.) due to bacterial contamination.

Recalls & Warnings

February 14, 2013

Protein Drink Recalled Due To Bacterial Contamination

On December 21, 2012, NBTY issued a voluntary recall of PURE PROTEIN PROTEIN SHOT 25g PROTEIN, GRAPE Flavor PROTEIN DRINK 2.9 fl. Oz. (Manufactured by Worldwide Sport Nutritional Supplements, Inc.) due to potential bacterial contamination.

Recalls & Warnings

August 31, 2016

Recall of Dangerous Chinese Herbal Supplement Expanded

On August 30, 2016, Ton Shen Health expanded its initial recall of DHZC-2 tablets to include all lots purchased before August 24, 2016, due to potential contamination with elevated levels of lead.

Recalls & Warnings

August 16, 2016

Chinese Herbal Supplement Recalled Due to Lead Contamination

On August 11, 2016, Ton Shen Health issued a recall its DHZC-2 tablets due to potential contamination with elevated levels of lead.

Recalls & Warnings

May 04, 2019

High Levels of Lead Found in Chinese Herbal Supplements

On May 2, 2019, Life Rising Corporation issued a recall Life Rising Holder-W Holder Warmer capsules, Life Rising NECK-ND Neck Clear capsules, and HoliCare Metabolism Cleansing (MET-CLS) tablets after FDA testing found high levels of lead in samples of the products.

Recalls & Warnings

August 28, 2018

King Bio Homeopathic Product Recall Expanded

On August 27, 2018, King Bio expanded its initial recalls of certain homeopathic products and children's homeopathic products to include all of its aqueous-based products for human and animal use due to possible microbial contamination.

Recalls & Warnings

July 03, 2018

Seller of Chinese "Cancer" Supplements Warned

On June 26, 2018, the FDA issued a warning letter to the American Chinese Medicine Association (ACMA), following a a review of the company's website, which found statements made about its products, including ACMA Brain Tumor Treatment, ACMA Breast Cancer Treatment, ACMA Colon Cancer ...