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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

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

News Release

August 23, 2023

ConsumerLab Tests Find More CBD, Less THC in CBD Oils, Gummies, and Topicals

White Plains, New York, August 23, 2023 —  Recent ConsumerLab tests of popular CBD (cannabidiol) products on the market revealed that, overall, products contain more CBD, and less THC (tetrahydrocannabinol, a psychoactive compound) than in previous years.

News Release

May 25, 2023

Best and Worst Multivitamins According to ConsumerLab – Nearly 30% Fail Testing

White Plains, New York, May 25, 2023 — Recent ConsumerLab tests revealed problems with nearly 30% of the popular multivitamin and multimineral supplements selected for testing. Gummy vitamins were particularly likely to have issues.

CL Answer

I do moderate exercise for about an hour a few times a week. Which supplements might help me, and which should I consider avoiding?

Info on what supplements are best for work out & exercise regimens, including electrolytes, protein, creatine, and BCAAs.

Supplements for Moderate Exercise

News Release

August 27, 2021

ConsumerLab Tests Reveal Best Joint Health Supplements for People and Pets

White Plains, New York, August 27, 2021 — Joint health supplements with ingredients such as glucosamine, chondroitin, MSM, boswellia, collagen and turmeric are often promoted to relieve joint pain or slow the progression of osteoarthritis.

Clinical Update

10/26/2019

CBD Safe for Pets?

A recent study evaluated the safety of giving CBD to dogs and cats. See the results in the Pets section of our CBD and Hemp Extracts Review. Also see our Top Picks among products for pets as well as for people.

Clinical Update

6/01/2022

Bug Sprays Around Pets & Laundry Water Disposal

We answered the following questions from our readers:

Are bug repellents or insecticides for humans safe for use on or around pets?

Is it safe to dispose of laundry water used to wash permethrin-treated clothing?

Clinical Update

8/11/2018

CBD for Dogs

Can CBD help dogs with osteoarthritis (worn joints)? Learn what a recent study found (as well as the dose used and a potential side effect) in the CBD for Pets section of the CBD & Hemp Supplements Review. (Also see our Top Picks for CBD for pets – as well as for people).

Clinical Update

11/11/2024

Joint Chew for Dogs?

Did a popular chew with Boswellia and collagen improve mobility or reduce joint pain among dogs with osteoarthritis? See what a recent study found in our Review of Joint Health Supplements for Pets, which includes our Top Picks among products. (Also see our Top Picks among joint health supplements for people.)

Learn more about ConsumerLab’s tests of supplements for pets.

Clinical Update

1/15/2026

Supplement for Anxiety in Dogs?

Does CBD reduce anxiety in dogs? Find out what a recent study showed in the Pets section of our Review, which includes our Top Picks for pets.

News Release

December 12, 2018

Best Taurine Supplements for People and Pets Identified by ConsumerLab

White Plains, New York, December 12, 2018 — Supplementing with taurine can treat taurine deficiencies in people and pets which, although uncommon, can occur with unconventional diets, such as grain-free diets for dogs.

News Release

October 02, 2018

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

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

News Release

November 27, 2017

Flaxseed and Other Popular Omega 3 & 6 Oil Supplements Tested, But Not All Brands Pass -- Tests of Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements

White Plains, New York, November 27, 2017 — Flaxseed oil and other popular seed oil are popular supplements that provide omega-3 and omega-6 fatty acids and may help with inflammatory conditions. But which seed oil supplements are the best? To find out, ConsumerLab.

News Release

November 01, 2017

Gummies Are Most Likely to Fail Testing in Review of Multivitamins -- Best and Worst Multivitamins Identified by ConsumerLab Testing

White Plains, New York, November 1, 2017 — Multivitamin/multimineral supplements are among the most popular supplements, with many consumers relying on them to provide nutrients they may not get from their diets. However, ConsumerLab.

News Release

July 29, 2016

ConsumerLab.com Discovers Problems with Most Multivitamins for Dogs and Cats

White Plains, New York, August 2, 2016 — After discovering in January that none of the three pet multivitamins it had purchased and tested contained all of what was listed on the labels, ConsumerLab.

News Release

June 03, 2016

What Works for Joint Health? ConsumerLab.com Reviews Glucosamine, Chondroitin, MSM and Boswellia Supplements for People and Pets

White Plains, New York, June 3, 2016 — Do popular joint health supplements with ingredients such as glucosamine, chondroitin, Boswellia, and MSM really work to relieve pain or slow the progression of osteoarthritis? And, with so many to choose from, which supplements are best? To find out, ...

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

June 16, 2011

ConsumerLab.com puts multivitamins to the test

June 16, 2011, New York, NY — Laboratory test results of 60 multivitamins have shown that you can't always judge a supplement by its label—or by its price. "Consumers should know that multivitamins vary widely in quality, "says Tod Cooperman, M.D., President of ConsumerLab.com.

News Release

March 31, 2009

ConsumerLab.com Warns of Problems with Multivitamins and Vitamin Water -- Defects Found in Over 30% of Supplements Selected for Testing; Several Popular Children's Multis Exceed Tolerable Upper Intake Levels

WHITE PLAINS, NEW YORK — MARCH 31, 2009 — Over 30% of multivitamins recently selected for testing by ConsumerLab.com were found to contain significantly more or less ingredient than claimed or were contaminated with lead.

News Release

November 02, 2003

Key ingredient missing in some arthritis supplements for people and pets according to ConsumerLab.com — Review of glucosamine, chondroitin and MSM supplements published online today

WHITE PLAINS, NY — November 2, 2003 — ConsumerLab.com today announced test results for supplements used in treating osteoarthritis that contain glucosamine, chondroitin, and/or MSM.

Recalls & Warnings

July 26, 2023

Five Leaf Pet Botanicals Warned by FDA for Drug Claims

On June 22, 2023, the FDA issued a warning letter to Five Leaf Pet Botanicals, Inc.

Recalls & Warnings

August 08, 2022

Woman Pleads Guilty for Selling and Promoting Products to Treat COVID-19

On July 27, 2022, Diana Daffin, owner of Savvy Holistic Health pleaded guilty to selling products with claims they could treat COVID-19 and promised “Immunity for Humans.” The products were sold under the HAMPL brand name.

Recalls & Warnings

March 16, 2023

Omega-3 Supplements for Dogs and Cats Recalled Due to Potential for Vitamin A Toxicity

On March 9, 2023, Stratford Care USA issued a recall of 62 brands of omega-3 supplements for dogs and cats due to potentially elevated levels of vitamin A.

Recalls & Warnings

September 08, 2020

Holistic Healthy Pet Warned for Drug Claims

On August 25, 2020, the FDA issued a warning letter to Savvy Holistic Health dba Holistic Healthy Pet following a review of the company's website, which found statements made about some of the company's products, including Doctor's Best for Your Pets, Savvy Holistic Health Pet Essences, ...

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

December 20, 2002

U.S. Seizes Supplement Illegally Marketed for Virus and Cold Use; FDA Steps Up Activity Against Supplements with False Claims

The U.S. Food and Drug Administration (FDA) announced that United States Marshals on Monday, December 16, 2002, seized approximately 3000 bottles, valued at more than $100,000, of EverCLR, a dietary supplement. EverCLR is marketed by Halo Supply Company of San Diego, Calif.

Recalls & Warnings

April 11, 2020

FDA Warns Seller of Products Promoted to Treat Coronavirus in Pets and Humans

On April 7, 2020, the FDA issued a warning letter to Savvy Holistic Health dba Holistic Healthy Pet for selling products intended for pets and humans with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

February 21, 2013

Pet Supplement Company Issues Recall Due To Potential Bacterial Contamination

On February 20, 2013, animal supplement company Nutri-Vet, LLC issued a recall of Nutri-Vet and NutriPet Chicken Jerky Products because they may be contaminated with Salmonella.

Recalls & Warnings

June 22, 2010

Pet Vitamin Recalled for Salmonella Risk

On June 22, 2010, the FDA reported that United Pet Group, Cincinnati, Ohio is voluntarily recalling all unexpired lots of its PRO-PET ADULT DAILY VITAMIN Supplement tablets for Dogs due to possible Salmonella contamination. This product is not among those included in ConsumerLab.

Recalls & Warnings

July 18, 2010

Expansion of Pet Supplement Recall for Salmonella Risk; Many Brands Affected

On July 2, 2010, the U.S.

Recalls & Warnings

November 21, 2017

Bones and Packaged "Bone Treats" Dangerous for Dogs

Giving your dog real turkey or chicken bones, or packaged "bone treats" could lead to serious injury or death, the FDA recently warned pet owners. 

Recalls & Warnings

February 27, 2018

Dog Treats, Food Recalled Due to Salmonella, Listeria Risk

The following dog treats and dog food are being recalled because they have the potential to be contaminated with Listeria monocytogenes or Salmonella, which can cause illness in pets who consume these products, as well as in pet owners who handle the contaminated products or touch ...

Recalls & Warnings

August 07, 2018

FDA Warns Seller of Noni Juice Products

On July 18, 2018, the FDA issued a warning letter to Hawaiian Organic Noni, LLC, following a facility inspection which found statements made on the labels of certain products, including Hawaiian Organic Noni Fruit Leather, Hawaiian Organic Noni Banana Fruit Leather, Hawaiian Organic Noni ...

Recalls & Warnings

March 26, 2019

Seller of NeuSilver Colloidal Silver for Adults, Children and Pets Warned by FDA

On February 19, 2019, the FDA issued a warning letter to iMedDo, Inc., following a review of the company's website, http://www.imeddo.

Recalls & Warnings

November 06, 2018

Dog Food Recalled After Reports of Vitamin D Toxicity

On November 2, 2018, Natural Life Pet Products and Nutrisca issued a recall of certain dry dog foods because they contain elevated levels of vitamin D. The elevated levels of vitamin D were found during an investigation into several reports of vitamin D toxicity by pet owners.

Recalls & Warnings

May 14, 2016

Xylitol in Supplements Poses Danger for Dogs

On May 12, 2016, the FDA warned consumers that xylitol, a popular sweetener found in chewable vitamins, chewing gum, breath mints, toothpaste and a variety of other products, is toxic to dogs.

Recalls & Warnings

November 27, 2018

More Dog Food Recalled Due to Risk of Vitamin D Toxicity

On November 27, 2018, Sunshine Mills, Inc. issued a recall of select Evolve Puppy, Sportsman's Pride Large Breed Puppy and Triumph Chicken and Rice Dog Food because they may contain elevated levels of vitamin D.

Recalls & Warnings

January 21, 2017

Seller of "Cancer Kits," Alpha Lipoic Acid Supplements and More Warned for Drug Claims

On December 22, 2016, the FDA issued a warning letter to Northern Health Products, Inc. following a review of the company's websites, www.northernhealthproducts.com and www.petdca.