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CLA Supplements

CLA Supplements Reviewed by ConsumerLab.com

Read our review to find the best CLA supplements, evidence for and against slimming, increasing lean body mass, and weight loss, dosage, safety and more. Find out which ones passed our tests and find out which are the best for your money.

CLA Supplements Review

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CL Answer

Can CLA slimming supplements cause liver damage?

Find out more about CLA slimming supplements and their safety, including if they can cause liver damage.

Sign Saying CLA with Omega 6 Pills on White Background

CL Answer

Is there a risk of liver toxicity with certain supplements?

Find out if there is risk of liver damage from supplements such as green tea, niacin, red yeast rice and vitamin A.

Liver Shape Made From Paper with Pills and Bottle Against Blue Background

CL Answer

Which supplements help reduce the risk of colorectal cancer?

Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.

Supplements and Colorectal Cancer Risk -- colon cancer diagnosis form and supplements

Clinical Update

2/26/2012

CLA For Weight Management

A new study in obese individuals found that taking a supplement with CLA (conjugated linoleic acid) for twelve weeks reduced body fat and, to a lesser degree, body weight. But CLA has other metabolic effects that need to be considered. See the update to the CLA Supplements Review which has details on dosage and potential side effects, as well as our product tests. More >>

Product Review

Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements Review: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids)

Choose the Best Seed Oil Supplements. Find Out Which Flaxseed and Other Seed Oil Supplements Passed Our Tests.

Flaxseed Oil, Evening Primrose Oil, Borage Oil, Hemp Oil and Black Currant Oil Supplements Reviewed by ConsumerLab.com

News Release

July 07, 2014

Which Weight Loss Supplements Are Best? ConsumerLab.com Reviews the Evidence and Tests the Quality of Popular Products

White Plains, New York, July 7, 2014 — Dozens of supplement ingredients have been touted for weight loss, but which have the strongest evidence showing they work and, among those, which products are highest in quality? To answer these questions, ConsumerLab.

CL Answer

Are there any supplements I should avoid when taking acetaminophen (Tylenol)?

Find out if there are any supplements that should be avoided when taking acetaminophen (Tylenol).

Acetaminophen (Tylenol) Interactions With Supplements -- box of Tylenol

CL Answer

Which supplements are best for seasonal allergies?

Find out which supplements are best for allergies and can help reduce seasonal allergy symptoms, including bromelain, curcumin, vitamin D, and CLA.

Supplements for Seasonal Allergies -- Woman Outside Sneezing

CL Answer

Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?

Find out if certain vitamins, supplements and foods such as fish oil, olive oil, vitamin C and others, can help reduce the risk of breast cancer. ConsumerLab.com's answer explains.

Supplements & Breast Cancer Risk -- doctor holding pink breast cancer awareness ribbon

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

CL Answer

Is canola oil good or bad for you? I heard it can be toxic.

Find out if canola oil is bad for you or good for you, and whether it helps heart health. Clinical evidence and how it compares to other oils.

Is canola oil good or bad? -- bottle of canola oil

CL Answer

Which supplements and foods can help lower or control blood sugar?

Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.

Blood Sugar Control -- blood test and blood sugar chart

Product Review

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

Do Creatine and BCAAs Really Improve Strength and Recovery?

CL Answer

What is C15:0 fatty acid (found in fatty15), and does it have health benefits?

C15:0 fatty acid in fatty15 is promoted for “healthier hair & skin, balanced metabolism, and deeper sleep,” as well as “slowing the aging process.” Find out if it works.

Bottle of fatty15 with white background

CL Answer

Are there any red flags to look for on the label when choosing a fish oil supplement?

Learn more about safety concerns when choosing a fish oil supplement.

Man Holding Fish Oil Capsule and Water

CL Answer

I've tried a number of fish oil supplements, all of which make me nauseous. What is the best non-fish alternative? I am primarily interested in getting EPA.

Learn how to reduce fish oil side effects such as nausea and upset stomach.

Disgusted Woman Holding Fish Oil

Clinical Update

9/02/2015

CLA Linked to Acute Hepatitis

CLA supplements are popular for slimming, but a recent report of acute hepatitis (liver inflammation) associated with use of CLA is concerning. Get the details, plus more about evidence, safety, and our tests of popular products in the CLA Supplements Review >>

News Release

January 11, 2011

Spoilage and labeling errors found with some omega-3 and -6 supplements; Review of evening primrose, flaxseed, borage, and black currant oil supplements

WHITE PLAINS, NEW YORK — JANUARY 10, 2011 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Only 11 of 17 products selected for testing met quality criteria for freshness and labeling.

News Release

January 20, 2010

ConsumerLab.com finds quality of most CLA supplements for slimming to be high; One brand mislabeled -- Report is first published in series on supplements for weight loss and slimming

ConsumerLab.com Finds Quality of Most CLA Supplements for Slimming to be High; One Brand Mislabeled

News Release

May 19, 2009

Review of Magnesium Supplements by ConsumerLab.com Shows One-Quarter Fail Quality Tests

WHITE PLAINS, NEW YORK — MAY 19, 2009 — ConsumerLab.com reported today that among twelve magnesium supplements selected for testing, only nine met quality standards. One supplement contained only 45.

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

December 10, 2007

ConsumerLab.com finds improvement in quality of omega-3 and -6 supplements — Results for 22 products made from evening primrose, flaxseed, borage and black currant oils

WHITE PLAINS, NEW YORK — DECEMBER 10, 2007 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Two products were slightly low in one fatty acid, but this is an improvement over results from ConsumerLab.

News Release

November 15, 2005

Testing by ConsumerLab.com identifies many problems with popular supplements for weight loss, slimming, and blood sugar control

Westchester, NY — November 15, 2005 — In a series of reports released today, ConsumerLab.com revealed test results for supplements used for weight loss, slimming, and blood sugar control. Among the twenty-three products that ConsumerLab.

News Release

August 16, 2005

ConsumerLab.com tests potassium supplements — Report now online for sixteen products

WHITE PLAINS, NY — August 16, 2005 — ConsumerLab.com has released a new report on the quality of potassium supplements. Potassium is used to treat or prevent potassium deficiency caused by diuretic drugs ("water pills"), prolonged vomiting, diarrhea or laxative abuse.

News Release

July 12, 2005

ConsumerLab.com finds some supplements lower in omega-3 and omega-6 fatty acids than claimed — Report available for 23 products made from oils of black currant, borage, evening primrose and flax

WHITE PLAINS, NY — July 12, 2005 — ConsumerLab.com has released its latest report on the quality of supplements made from the seed oils of black currant, borage, evening primrose, and flax.

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

April 27, 2005

ConsumerLab.com finds quality of most nutrition powders and drinks high, but identifies five protein powders with excess sodium or cholesterol — Report Now Available Online

WHITE PLAINS, NY — APRIL 27, 2005 — ConsumerLab.com has released its latest report on the quality of nutrition powders, shakes and drinks. These products are used for general nutrition, dieting, and meal-replacement and are frequently used by athletes and bodybuilders.

Recalls & Warnings

May 30, 2015

Seller of Supplements for Herpes, Prostate Cancer & More Warned for Drug Claims

On May 7, 2015, the FDA issued a warning letter to Strictly Health Corporation, following a review of the company's websites which found statements made about FENVIR, Prosta Pep and Tonalin brand CLA to be drug claims.

Recalls & Warnings

September 15, 2022

FDA Warns Parents Not to Use Mother's Touch Infant Formula

On September 6, 2022, the FDA warned parents and caregivers not to buy or give Mother’s Touch Formula to infants.

Recalls & Warnings

June 03, 2015

Maker of B-12 Energy Supplement Warned for Manufacturing Violations

On May 15, 2015, the FDA issued a warning letter to LiquidCapsule Manufacturing, LLC.

News Release

March 30, 2005

ConsumerLab.com finds most B-vitamins of high quality but three lacking in ingredients — Test Results for 41 Products Reported Along with Information on Use

WHITE PLAINS, NY — MARCH 30, 2005 — ConsumerLab.com reported test results today for B vitamin supplements that it recently purchased in the U.S. and Canada.

News Release

August 07, 2002

ConsumerLab.com finds some spoilage and inaccuracy among omega-3 and 6 supplements — List released of evening primrose, flaxseed and other GLA/ALA products that passed testing

WHITE PLAINS, NY — August 7, 2002 — ConsumerLab.com, an independent evaluator of health and nutrition products, released results today of its Product Review of Black Currant, Borage, Evening Primrose, and Flaxseed Oils: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids).

News Release

July 10, 2002

Pharmavite dietary supplements receive ConsumerLab.com approval — Vitamin E, SAM-e, St. John's Wort, Ginkgo and others merit approved quality products ranking

WHITE PLAINS, NY — July 10, 2002 — ConsumerLab.

News Release

April 03, 2002

More than one in five weight loss, slimming and/or diabetes supplements fail ConsumerLab.com evaluation — Problems found in chromium and pyruvate products; CLA products fine

WHITE PLAINS, NY — April 3, 2002 — ConsumerLab.com announced today that more than one in five products failed its recent Product Review of Weight Loss, Slimming and Diabetes-Management Supplements.

Recalls & Warnings

June 07, 2013

Seller of Red Rice Yeast With CoQ10, Respiratory Supplement And More Warned For Manufacturing Violations and Drug Claims

On February 25, 2013, the FDA issued a warning letter to Altasource, LLC, dba Meta Labs LLC, following a facility inspection which found the company's dietary supplements, including Respiratory Response, African Mango, Coffee Black Salve, Meta-Cell, Conjugated Linoleic Acid and Red Yeast Rice with ...

Recalls & Warnings

February 13, 2014

Maker of Cholesterol and Workout Supplements Warned For Manufacturing Violations, Drug Claims and Unapproved Ingredient

On January 31, 2014, the FDA issued a warning letter to Exclusive Supplements Inc.

Recalls & Warnings

July 05, 2013

Seller of Vision Supplement Warned For Drug Claims

On June 25, 2013, the FDA issued a warning letter to Nutrient Synergy, Inc., following a review of the company's website which found statements made about the dietary supplement Nepretin to be drug claims.

Recalls & Warnings

October 24, 2012

Manufacturer of Green Tea, Vitamin E, Omega-3 and Cranberry Supplements Warned For Manufacturing Violations, Misbranding and Drug Claims

On October 16, 2012, the FDA issued a warning letter to dietary supplement manufacturer Advanced Nutritional Technology Inc.