Showing Results for Cod Liver Oil
Vitamin A Supplements
Learn what to look for when choosing the best vitamin A supplement, including beta-carotene and cod liver oil. Review test results and quality and cost comparisons for popular brands. Plus, dosage, safety, side effects, drug interactions and more. Understand what you are taking before you buy.
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CL Answer
What is fermented cod liver oil, such as Blue Ice? Is it better than regular cod liver oil?
Fermented cod liver oil information including if Rosita & Blue Ice (Green Pastures) is as good a source of vitamins and DHA as regular.
CL Answer
What is the difference between fish oil and cod liver oil? Is one better than the other?
Find out how regular fish oil and cod liver oil differ including amounts of omega-3s EPA and DHA, vitamin A and vitamin D, which is best to suit your needs. ConsumerLab.com's answer explains.
CL Answer
Is it true that fish oil supplements may contain soy? I'm allergic!
Learn about soy content in fish oil and cod liver oil, including safety for those with soy allergies.
CL Answer
Which "whole food" multivitamins don't include synthetic vitamins? How about Complete Foods, Sunwarrior, Garden of Life, Nature's Brands, and Doctors' Research?
Find out which "whole food" multivitamins are only from foods and which include synthetic vitamins, including Complete Foods Nutrition-OctoMega MultiVitamin; Sunwarrior; Garden of Life-MyKind Organics; Nature's Brands-PhytoVitamins; Doctors' Research MultiVitamin.
CL Answer
I am very concerned about getting too much vitamin A. Is there danger in getting too much vitamin A if I take fish oil, which I've heard contains a lot of vitamin A, in addition to my multivitamin?
Find out if taking vitamin A along with fish oil can lead to an excess of vitamin A and how to avoid vitamin A overdose.
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.
CL Answer
I'm at risk for both macular degeneration and Alzheimer's disease. I've read that more EPA than DHA is good for macular degeneration, but the reverse is true for Alzheimer's. What do you recommend?
Find out if taking fish oil supplements or eating fish can help for macular degeneration and Alzheimer's disease. ConsumerLab.com's answer explains.
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.
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.
CL Answer
Is it safe to consume fish oil as a long-term food supplement?
Learn more about fish oil supplement safety including long-term use, side effects, and more.
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.
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.
CL Answer
Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?
Learn more about the benefits of getting vitamins from food versus supplements, natural versus synthetic vitamins, and 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.
CL Answer
Can taking too much fish oil be dangerous?
Find out if too much fish oil can be dangerous, and if taking too much fish oil can cause effects such as suppressing the immune system, thinning the blood (increasing the risk of bleeding), increasing levels of LDL cholesterol and liver enzymes or increasing the frequency in episodes atrial fibrillation. ConsumerLab.com's answer explains.
CL Answer
Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Find out if supplements such as vitamin E, fish oil, milk thistle, curcumin, choline, probiotics, vitamin D, reishi mushroom, or extra virgin olive oil are beneficial for fatty liver disease and learn which diet (Mediterranean, ketogenic, DASH, or fasting diets) seems to have greatest benefit.
CL Answer
What is desiccated beef liver? What is it used for, and is it safe?
Description of desiccated beef liver, including what it is used for, its nutrient content, and safety concerns.
Recalls & Warnings
March 11, 2024
Healthex Warned for Manufacturing Violations
On June 15, 2023, the FDA issued a Warning Letter to Healthex Distributors, Inc.
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.
CL Answer
Are there any serious side effects with Lovaza or Epanova (prescription fish oil)? If so, would these also apply to generic versions of these drugs and to fish oil supplements?
Understand the side effects of prescription fish oil like Lovaza and Epanova, and find out if the generic fish oils are effective and safe.
Product Review
CLA (Conjugated Linoleic Acid) Supplements Review (for Slimming)
Choose the Best CLA Supplement. Not All CLA Supplements Contain What You Expect.
News Release
November 26, 2012
Tests Show Many Milk Thistle Supplements Low in Key Component -- Seven of Eleven Products Fail ConsumerLab.com Testing of Herb Used in Diabetes and Liver Diseases
White Plains, NY, November 26, 2012 — Recent tests by ConsumerLab.com of eleven milk thistle supplements show that only four met ConsumerLab.com's quality standards.
News Release
August 22, 2012
Contamination and Other Problems Found in Fish Oil Supplements -- Large Review by ConsumerLab.com Reveals Excessive PCBs or Mislabeling in Over 30% of Omega-3 Supplements
August 22, 2012 — The quality of fish oil / omega-3 supplements varies across brands, according to recent tests by ConsumerLab.com, which independently reports on the quality of health products. Analyses of 35 products selected and purchased by ConsumerLab.
CL Answer
Should I be concerned about pyrrolizidine alkaloids in herbal supplements?
Find out which herbal supplement ingredients contain pyrrolizidine alkaloids (PAs), learn why these constituents are a safety concern, and find out how supplements containing these ingredients are regulated in the U.S. and Europe.
CL Answer
I read that sterol supplements to lower cholesterol like CholestOff can block the absorption of vitamins. Is that true?
Find out if CholestOff and other sterol supplements can block vitamin absorption in the body and other safety concerns.
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.
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.
News Release
September 21, 2011
Not all vitamin A supplements pass ConsumerLab.com tests -- New report reviews beta-carotene and cod liver oil supplements
White Plains, New York — September 21, 2011 — Recent tests of vitamin A supplements by ConsumerLab.com found one to contain only 54.3% of its listed amount of vitamin A. Another product mislabeled alpha carotene as vitamin A.
CL Answer
Can taking N-acetylcysteine (NAC) supplements reduce my risk of liver damage from acetaminophen?
Information on taking NAC supplements (N-acetylcysteine) to reduce the risk of liver damage from acetaminophen.
CL Answer
I've heard that grapefruit juice can interact with medications because it inhibits an enzyme that breaks down drugs in the body. Do any supplements interact the same way with drugs?
CYP3A4 inhibitors, such as grapefruit, can interact with certain medications by inhibiting the liver enzyme that metabolizes many drugs. ConsumerLab.com's answer explains.
Product Review
Milk Thistle Supplements Review
Find the Best Milk Thistle Supplement. Tests and Reviews of Popular Milk Thistle Supplements & CL's Top Picks.
CL Answer
Is it true that milk thistle supplements can be contaminated with toxins that can be harmful to the liver?
Find out if milk thistle supplements can be contaminated with toxins that can be harmful to the liver.
CL Answer
My doctor warned me that red yeast rice can cause liver damage - is that true?
Can red yeast rice cause liver damage? More information on its effects, including possible danger to the liver and kidneys.
Product Review
Extra Virgin Olive Oil Review
Many Extra Virgin Olive Oils Don't Seem to Make the Grade
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.
Product Review
CBD Oils, Softgels, Gummies, Creams & Salves Review
See How Much CBD and THC We Found in Products.
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).
CL Answer
What is TUDCA (tauroursodeoxycholic acid)? Does it have any proven health benefits, and is it safe?
TUDCA information, including its potential health benefits, safety, possible interactions, and cost.
CL Answer
I would like to try gotu kola for varicose veins but I've heard it's not safe to take. Is that true?
Learn more about gotu kola, including possible benefits for varicose veins and whether it is safe to take. ConsumerLab explains.
CL Answer
Is cinnamon dangerous for my liver? I put about a teaspoon of it in my oatmeal every day.
The most common form of cinnamon contains a naturally occurring liver toxin called coumarin. Find out how much cinnamon is safe to consume, and how often it can be consumed. Also learn how much coumarin ConsumerLab found in popular cinnamon and spices.
CL Answer
Are there supplements, foods, or beverages that I should avoid when taking clopidogrel (Plavix)?
Learn about supplement interactions with clopidogrel (Plavix). Supplements that may interact with this medication include cannabidiol (CBD), grapefruit, St. John's wort, ginkgo and others.
CL Answer
To lower my cholesterol, I am taking a phytosterol supplement. Will taking other supplements, like red yeast rice or fish oil, help lower my cholesterol even further?
Learn more about combining phytosterols and other cholesterol-lowering supplements like red yeast rice or fish oil.
CL Answer
I recently read that turmeric is only effective if it is combined with black pepper. Is this true?
Find out the best way to take turmeric and curcumin supplements to increase absorption and bioavailability. ConsumerLab.com's answer explains.
CL Answer
What is Omega XL and does it work?
What is Omega XL (distributed by Great Health Works) and does it work? Described as a "highly concentrated Omega-3 'Super Oil' supplement".
CL Answer
I have IBS and don't want to take medication if I can help it. I've heard that peppermint works for IBS, but is there good research to support this?
Information about using peppermint oil for irritable bowel syndrome (IBS), including clinical evidence, dosage, safety and more.
CL Answer
I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?
Find out which supplements should be avoided when taking blood thinners (anticoagulants) like warfarin (Coumadin), including vitamin K, St. John's wort, and curcumin.
CL Answer
Is it true that some vitamins or supplements can cause cancer?
Learn more about the effects of certain vitamins and supplements on cancer, including beta-carotene, vitamins E and B9, and multivitamins.
CL Answer
I use beta-sitosterol for my prostate. Should it be taken with or without food?
How should you take the prostate supplement beta-sitosterol to maximize absorption? Learn more at ConsumerLab.com.
CL Answer
Which supplements should be taken with food?
Find out which supplements should be taken with food, including vitamins A, D, E, and K, fish oil, and CoQ10.
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.
Clinical Update
2/18/2022
Fish Oil for Fatty Liver?
Can fish oil supplementation help reduce liver fat and fibrosis in people with non-alcoholic fatty liver disease (NAFLD)? Find out what a recent study suggests in the Liver Disease section of our Fish Oil Supplements Review.
Also see our article about Supplements for Fatty Liver Disease.
Clinical Update
3/19/2024
Olive Oil & Fatty Liver
Olive oil seems to offer benefits to people with fatty liver disease. See what a recent study showed in our Extra Virgin Olive Oil Review, which includes our Top Picks among olive oils.
Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Recalls & Warnings
May 28, 2020
FDA Warns Sellers of CBD, Colloidal Silver, Essential Oils, and More Promoted to Treat Coronavirus
On May 26, 2020, the FDA issued warning letters to four companies for selling products such as CBD, essential oils, colloidal silver, and vitamins with unsupported claims that they can treat coronavirus (COVID-19).
Clinical Update
11/06/2020
Fish Oil for Liver Disease?
Does taking fish oil help people with nonalcoholic fatty liver disease (NAFLD)? Find out what a recent study suggested in the What It Does section of our Fish Oil Supplements Review. Also see our Top Picks for fish oil.
Clinical Update
8/13/2019
Extra Virgin Olive Oil and Fatty Liver Disease
Can consuming a Mediterranean diet enriched with extra-virgin olive oil decrease the incidence of non-alcoholic fatty liver disease? See what a new study found in the What It Does section of the Extra Virgin Olive Oil Review. Also see our tests and Top Picks among extra virgin olive oils.
Clinical Update
7/17/2021
Fish Oil and Fatty Liver Disease?
Can taking fish oil over a lifetime increase the risk of developing fatty liver disease? Find out in the Concerns and Cautions section of the Fish Oil Supplements Review.
Clinical Update
2/14/2023
Supplements for Fatty Liver?
Find out how the following supplements, and other approaches, affect liver function in people with non-alcoholic fatty liver disease (NAFLD):
News Release
December 02, 2009
Tests show many milk thistle supplements low in key component -- Nine of ten products fail ConsumerLab.com testing of herb used in diabetes and liver diseases
TESTS SHOW MANY MILK THISTLE SUPPLEMENTS LOW IN KEY COMPONENT
Clinical Update
8/09/2022
Vitamin E for Fatty Liver Disease?
Can vitamin E improve liver health in people with non-alcoholic fatty liver disease (NAFLD)? Get the details in the Liver Disease section of our Vitamin E Supplements Review.
Also see our CL Answer about Supplements for Fatty Liver Disease.
Clinical Update
12/12/2023
Tocotrienols for Fatty Liver?
Does taking tocotrienols, a form of vitamin E, improve liver function among people with non-alcoholic fatty liver disease (NAFLD)? Find out what research suggests in the Liver disease section of our Vitamin E Supplements Review.
Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Clinical Update
8/07/2021
Bergamot for Fatty Liver?
Can bergamot help reduce cholesterol or liver fat in people with fatty liver disease? Find out in our updated answer about Supplements and Diets for fatty Liver Disease.
Clinical Update
7/06/2022
Curcumin for Fatty Liver?
Does supplementing with curcumin decrease liver fat in people with fatty liver? See what a recent study found in the What It Does section of the Turmeric and Curcumin Supplements and Spices Review.
Also see our answer to the question: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Clinical Update
2/17/2023
TUDCA for Fatty Liver?
TUDCA supplements are commonly promoted for treating liver disorders, but is there evidence supporting the use of TUDCA for fatty liver disease? Find out in our updated CL Answer about supplements for fatty liver.
Also, see our CL Answer about TUDCA for details about its other uses, potential safety concerns, and cost.
Clinical Update
7/31/2021
Coffee And Fatty Liver Disease?
Can drinking coffee help prevent fatty liver disease and liver fibrosis (scarring)? Find out what research suggests in our CL Answer about supplements and diets for fatty liver disease.
Clinical Update
10/18/2022
Liver Injury From Turmeric/Curcumin
Several cases of turmeric/curcumin-related liver injury have been reported in the U.S. in recent years. Learn the most common symptoms and who is most likely to be affected in the Concerns and Cautions section of our Turmeric and Curcumin Supplements and Spices Review.
Also see our Answer to the question: "Is there a risk of liver toxicity with certain supplements?"
Clinical Update
11/10/2023
Ashwagandha & Liver Injury
Eight new cases of liver injury were recently reported among people taking ashwagandha supplements. Get the details, including the doses taken and common symptoms in the Concerns and Cautions section of our Ashwagandha Supplements Review.
Also see our answer to the question: Is there a risk of liver toxicity with certain supplements?
Clinical Update
12/05/2023
Fatty Liver & C15:0
Did supplementing with C15:0 help people with fatty liver disease? Find out what a recent study showed in our article about the health effects of C15:0.
Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Clinical Update
4/22/2022
Vitamin E for Fatty Liver Disease?
Can supplementation with vitamin E benefit people with non-alcoholic fatty liver disease (NALFD)? See what the American Heart Association recently advised in the What It Does section of our Vitamin E Supplements Review.
Also see our answer to the question: Do any supplements help with fatty liver disease?
Clinical Update
2/22/2023
Spirulina for Fatty Liver?
Find out if spirulina or brown seaweed help with non-alcoholic fatty liver disease (NAFLD) in our updated CL Answer about supplements for fatty liver. Also see our Top Pick for spirulina.
Clinical Update
2/24/2023
Curcumin for Fatty Liver?
Does curcumin supplementation decrease cholesterol, triglycerides, or liver enzyme levels in people with non-alcoholic fatty liver disease (NAFLD)? Find out what a recent study showed in the What It Does section of our Turmeric and Curcumin Review. Also see our Top Picks among turmeric and curcumin supplements and spices.
Clinical Update
6/20/2014
Green Tea and Liver Toxicity
Green tea extract was listed as one of the most common dietary supplements linked to liver injury in a newly published guideline for diagnosing and treating drug-induced liver injury. Find out what one of the authors of the guideline had to say about the catechin content of some green tea supplements, and get our test results showing the amounts of catechins in green tea supplements in the Green Tea Supplements, Drinks and Brewable Teas Review >>
Clinical Update
7/12/2016
Vitamin D & Fatty Liver
Vitamin D supplementation may decrease fat accumulation in the liver in people with non-alcoholic fatty liver disease who are vitamin D deficient. Get the details in the "What It Does" section of the Vitamin D Supplements Review >>
Clinical Update
10/25/2014
Probiotics Reduce Cholesterol / Improve Liver Function
Adding probiotic organisms to yogurt appeared to reduce LDL ("bad") cholesterol in a study of people with nonalcoholic fatty liver disease, a common condition. Levels of liver enzymes also improved and more weight loss occurred when people ate the probiotic yogurt, in contrast to those who ate regular yogurt. The probiotic organisms used in this study are found in several products recently tested by ConsumerLab.com. See the details in the Probiotic Supplements Review >>
Clinical Update
7/27/2021
Diets for Fatty Liver Disease
Are some diets more beneficial than others for fatty liver disease? Find out in our CL Answer about supplements and diets for fatty liver disease.
Clinical Update
9/17/2021
Vitamin C For Fatty Liver?
Can taking high-dose vitamin C improve liver function or insulin resistance in people with NAFLD (non-alcoholic fatty liver disease)? Find out what a recent study showed in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks among vitamin C supplements.
Clinical Update
10/05/2021
Diet for Fatty Liver Disease
Find out the most important dietary considerations for people with fatty liver disease in our updated answer to the question: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Clinical Update
8/02/2022
Supplements & Liver Injury?
We’ve added four additional supplements to our list of more than a dozen Supplements That May Cause Liver Toxicity.
Clinical Update
7/10/2021
Liver Injury With Ashwagandha
Although rare, liver injury has been linked to the use of certain ashwagandha supplements. Another case was recently reported. Get the details in the Concerns and Cautions section of the Ashwagandha Supplements Review.
Clinical Update
12/14/2021
Liver Injury from Ashwagandha
Several cases of liver injury have been reported with use of ashwagandha supplements, including a recent report suggesting why this may happen. Get the details in the Concerns and Cautions section of our Ashwagandha Supplements Review.
Clinical Update
1/14/2022
Liver Injury With Reishi
Although very rare, liver injury has occurred in people taking reishi mushroom. Learn more, including details of a recent report, in the Concerns and Cautions section of our Reishi Mushroom Supplements Review.
Clinical Update
10/30/2019
Liver Toxicity With Turmeric/Curcumin
Several cases of liver toxicity from turmeric and curcumin supplements have been reported. For details, and the latest case, see the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review.
Clinical Update
3/25/2020
Another Case of Liver Injury With Turmeric
Although believed to be rare, we’ve been reporting a steady stream of cases of liver injury (hepatitis) with turmeric supplements. Learn the symptoms and read the latest in the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review.
Clinical Update
8/02/2020
Ginseng for Liver?
Does taking ginseng lower blood markers of liver disfunction? Find out what a recent study showed in the What It Does section of the Ginseng Supplements Review. Also see our Top Picks for ginseng.
Clinical Update
9/18/2018
Curcumin Effect on Liver
Long-term use of curcumin may negatively affect the liver in a small percentage of people, according to a new report. Get the details in the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review. (Also see our Top Picks for turmeric and curcumin.)
Clinical Update
Clinical Update
6/08/2019
Turmeric (Curcumin) and Fatty Liver Disease
Several studies suggest that curcumin supplements (from turmeric) may be helpful to people with non-alcoholic fatty liver disease. For details, see the What It Does section of the Turmeric & Curcumin Supplements Review. Also see our Top Picks among products.
Clinical Update
6/08/2019
Liver Injury With Turmeric
Another case of liver injury from a turmeric/curcumin supplement was recently reported. Although not common, it is important to be aware of this potential risk. For details, see the Concerns and Cautions section of the Turmeric & Curcumin Supplements Review.
Clinical Update
7/13/2019
Liver Toxicity With Turmeric
Although uncommon, there are now several recent reports of liver toxicity associated with turmeric or curcumin supplements. Get the details in the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review. Also see our Top Picks for turmeric and curcumin.
Clinical Update
5/22/2019
Liver Injury With Ashwagandha
Although rare, several cases of liver injury associated with the use of ashwagandha supplements were recently reported. See the details in the Concerns and Cautions section of the Ashwagandha Supplements Review. This has affected our selection of a Top Pick.
Clinical Update
10/14/2017
Fatty Liver and Vitamin D
A recent study showed that it is difficult to raise vitamin D levels in some people who have non-alcoholic fatty liver disease -- a condition affecting 30% of Americans. This is concerning, as there may be benefits to raising low levels of vitamin D in such people. Learn more in the "What It Does" section of the Vitamin D Supplements Review >>
Clinical Update
8/02/2012
Vitamin E and Liver Cancer
A study has shown a dramatic decrease in the risk of liver cancer among people taking vitamin E supplements or getting higher amounts of vitamin E from their diets. But don't necessarily rush out to get vitamin E. Read the details in the update to the Vitamin E Supplements Review. More >>
Clinical Update
12/23/2013
Liver Toxicity with Supplements, Including Green Tea
An increase in cases of liver toxicity associated with dietary supplement use has recently been reported. In an article about the findings, The New York Times reports that bodybuilding supplements and products containing green tea extracts are among those associated with such cases. For more information about green tea extracts and toxicity, see the Concerns and Cautions section of the Green Tea Supplements Review >>
Clinical Update
6/07/2022
Liver Danger With Muscle-Building Supplement
A case of liver toxicity was linked to use of an illegal ingredient found in some muscle-building supplements. Get the details in the Concerns and Cautions section of our Muscle & Workout Supplements Review.
Clinical Update
3/17/2023
Safer Kava?
Are some types of kava less likely to cause liver damage than others? Find out in our article about liver toxicity and supplements.
Clinical Update
2/23/2024
Kratom Linked to Liver Injury
Use of kratom was linked with acute liver failure in a recent case report. Kratom may cause a variety of adverse effects and even death, particularly when used with other substances. Get the details in our article about kratom.
Clinical Update
2/23/2024
Herbalife Products and Liver Injury
Use of two Herbalife products were associated with a recent case of liver injury. See the details in the article in our Warnings section.
Clinical Update
2/27/2024
Alpha Lipoic Acid & Fatty Liver Disease
Does alpha lipoic acid help with metabolic fatty liver disease? See what research shows in our Alpha Lipoic Acid Supplements Review. Also see our Top Picks among alpha lipoic acid supplements.
Clinical Update
12/05/2023
Liver Injury With Turmeric
Another case of liver injury with a turmeric supplement was reported. Get the details in the Concerns and Cautions section of our Turmeric and Curcumin Supplements Review.
Clinical Update
11/07/2023
Cholesterol Supplement May Raise Liver Enzymes
Two CL members have reported elevated liver enzymes after taking a popular cholesterol-lowering supplement, although this appears to be rare. Get the details in the Concerns and Cautions section of our Cholesterol-Lowering Supplements Review.
Clinical Update
10/14/2022
Do Prebiotics Cause Liver Cancer?
Some CL readers expressed concern over recent headlines suggesting that prebiotic fiber may cause liver cancer. Learn if this should be of concern in the Concerns and Cautions section of our Prebiotics Review.
Recalls & Warnings
February 02, 2018
Seller of Vitamin D, Omega-3's, Whey Protein & More Warned for Drug Claims
On January 24, 2018 the FDA issued a warning letter to Young Health Products, LLC following a review of the company's website which found promotional statements and testimonials made about the certain products, including Lugol's Solution 2%, Liquid Vitamin D3, Probimune, Flax Seed & Omega ...
Clinical Update
8/25/2015
Are Green Tea Pills Safe?
Studies have suggested that extracts of green tea can reduce the risk of certain cancers, improve memory, shrink uterine fibroids, and even help with weight reduction. However, liver toxicity has been a concern with green tea extracts. A large, government-funded study recently found that pills of green tea extract can be safe for many people, but some may experience adverse reactions, including elevated liver enzymes. Get the details in the "Concerns and Cautions" section of the Green Tea Review, along with information about what green tea does and our tests of green tea extracts, brewable teas, and beverages >>
Recalls & Warnings
April 10, 2021
Companies Deceived Consumers About Fish Oil for Liver Disease, Says FTC
On April 1, 2021, the Federal Trade Commission (FTC) announced that fish oil supplement manufacturer BASF SE and its U.S.
Recalls & Warnings
November 02, 2012
Maker of Joint Health, Blood Sugar, Prostate, Ginkgo Supplements and More Warned For Drug Claims, Misbranding and Adulteration
On September 10, 2012, the FDA issued a warning letter to Global Source Management & Consulting for making drug claims about the following dietary supplements: Scientific Joint Program capsules, Alpha Lipoic Acid, Healthy Blood Sugar Diabetic Support, Dr.
Recalls & Warnings
February 22, 2024
Herbalife Shake & Protein Drink Mix, Aloe, Linked With Case of Liver Injury
A 13-year-old boy in Texas developed liver failure and hepatitis-associated aplastic anemia after consuming two Herbalife products and an aloe vera beverage over a period of months, according to a report published on February 12, 2024 in the Journal of Pediatric Gastroenterology and ...
Recalls & Warnings
August 14, 2023
Liver Injury Linked to "Immune Booster" Supplement Sold on Amazon
A 27-year-old woman in Pennsylvania was admitted to intensive care for drug-induced liver injury after taking Prodigy Life HRP-AID, a supplement sold on Amazon and promoted as an "immune system booster" to reduce the intensity and frequency of cold sore outbreaks, according to a ...
News Release
October 28, 2008
Tests reveal quality problems with vitamin A supplements -- New ConsumerLab.com report focuses on vitamin A, including beta-carotene and cod liver oil
WHITE PLAINS, NEW YORK — OCTOBER 28, 2008 — ConsumerLab.com is cautioning that the amount vitamin A in some supplements may be much higher or lower than the amount stated on labels. Among ten supplements recently selected for testing, ConsumerLab.
Recalls & Warnings
July 22, 2022
FDA Warns Seller of Vision, Calcium & Magnesium Supplements and More
On June 14, 2022, the FDA issued a warning letter to New Sun Inc. following inspection of the company’s website which found statements about the company’s products to be drug claims.
Recalls & Warnings
May 08, 2021
Seller of Immune Bio Green Cell Warned by FDA
On March 30, 2021, the FDA issued a warning letter to Immune & Genetics Protocols, LLC following a review of the company's websites, which found statements made about the company's product Immune Bio Green Cell to be drug claims.
News Release
June 12, 2007
Tests show many milk thistle supplements low in key component — Seven products fail ConsumerLab.com testing of herb used in diabetes and liver diseases
WHITE PLAINS, NEW YORK — June 12, 2007 — Tests by ConsumerLab.com of nine milk thistle supplements that it selected showed that only two contained the expected amounts of silymarin compounds, believed to be the active constituent of milk thistle.
Recalls & Warnings
June 16, 2022
Omega 3 Supplements Recalled Due to Undeclared Drug Ingredients
On May 28, 2022, Latin Foods Market issued a voluntary recall of one lot of Artri King Reforzado con Ortiga y Omega 3 tablets after FDA laboratory analysis found the presence of undeclared diclofenac and dexamethasone.
Recalls & Warnings
July 06, 2022
Two Companies Banned From Selling Supplements to Treat Heart Disease, Neuropathy
On June 30, 2022, the Federal Trade Commission (FTC) finalized an administrative complaint order against two Texas-based companies, Health Research Laboratories, LLC and Whole Body Supplements, LLC, for making unverified claims that their products can prevent or treat disease.
Recalls & Warnings
January 12, 2021
Seller of Cholesterol, Weight Loss Products, and More Warned for Claims
On November 17, 2020, the FDA issued a warning letter to Bonagens following a review of the company's website, which found statements made about the company's products Anti-Aging Supports, Cholesterol & Diabetes Control, Gout Control, Hypertension Control, Liver Supports, Lungs ...
Recalls & Warnings
March 02, 2022
Seller of Holistic Tea Warned by FDA
On February 17, 2022, the FDA issued a warning letter to Vital Health & Wellness following an inspection of the company’s website, which found statements made about the company’s product, Dr. Miller’s Holistic Premium Holy Tea, to be drug claims.
Recalls & Warnings
March 30, 2021
Real Water Alkaline Water Recalled for Possible Link to Liver Illness
On March 24, 2021, Real Water, Inc. recalled all sizes of Real Water bottled alkaline water because it may be linked to multiple cases of non-viral hepatitis that occurred in Las Vegas, NV in November of 2020.
Recalls & Warnings
January 04, 2020
Hormonal Balance Supplement Tied to Liver Failure
An otherwise healthy 23-year old woman in Texas is reported to have recently developed liver failure (requiring a liver transplant) after taking the supplement Balance (from Alani Nu) for four months.
Recalls & Warnings
November 21, 2017
Health Canada Calls for Stronger Warnings of Liver Risk on Green Tea Extract Products
On November 15, 2017, Health Canada (the Canadian equivalent of the FDA) recommended stronger warning statements about the risk of liver toxicity on labels of supplements containing green tea extract sold in Canada.
Recalls & Warnings
October 13, 2018
Pharmaceutical Drugs Found In Dietary Supplements Pose Danger to Consumers
Almost 800 dietary supplements sold between 2007 and 2016 contained unapproved pharmaceutical ingredients, according to a study published today in the Journal of the American Medical Association (JAMA).
Recalls & Warnings
February 28, 2017
Multivitamin Recalled Due to Allergen Risk
On February 14, 2017, Licata Enterprises issued a recall of all lots of its Supreme One and Theravits 100 multiple vitamins because they contain fish liver oil but is labeled as containing "no common allergens.
Recalls & Warnings
March 25, 2002
FDA Advises Consumers of Risk of Severe Liver Toxicity with Kava
On March 25, 2002 the U.S. Food and Drug Administration (FDA)issued a Consumer Advisory, as well as a letter to health care providers, advising of the potential risk of severe liver injury associated with the use of kava-containing dietary supplements.
Recalls & Warnings
November 04, 2016
Liver Injuries Linked With Dietary Supplement Use on the Rise
The number of liver injuries associated with dietary supplement use has increased substantially in recent years, according to a recently published study in the journal Hepatology.
Recalls & Warnings
June 06, 2017
Seller of Herbal Supplements Warned for Manufacturing Violations, Drug Claims
On May 25, 2017 the FDA issued a warning letter to Life Rising Corporation, following a facility inspection which found the company's products, including Stomach Regulator, Fang Feng Formula, Skin Regulator, Regulate Liver, Circulation Regulator, Pancreas Support, Lung Regulator, Pure Tea, ...
Recalls & Warnings
December 08, 2017
Limbrel Capsules for Osteoarthritis Linked With Potentially Life-Threatening Health Risk, FDA Warns
On December 4, 2017, the FDA urged consumers not to take Limbrel (Primus Pharmaceuticals), a capsule marketed to manage the metabolic processes associated with osteoarthritis, because it has been associated with serious adverse events, including drug-induced liver injury and a lung ...
Recalls & Warnings
May 23, 2013
Seller of Sexual Enhancement, Cholesterol, Resveratrol Supplements and More Warned For Drug Claims
On May 2, 2013, the FDA issued a warning letter to Alternative Health Supplements, following a review of the company's website, which found statements made about several dietary supplements, including Regenerect, Alligin, Astaxanthin Advantage, HDL Cholesterol Management, Resveratrol, Coral Calcium ...
Recalls & Warnings
January 07, 2002
Liver Toxicity with Kava
As announced in a December 19, 2001 letter to healthcare professionals, The Food and Drug Administration (FDA) is investigating whether the use of dietary supplements containing kava (also known as kava kava or Piper methysticum) is associated with liver toxicity.
Recalls & Warnings
February 15, 2006
New Zealand Warns of Liver Toxicity from Black Cohosh
On February 9, 2006, New Zealand's Therapeutic Goods Administration (TGA) announced new labelling and consumer information for medicines containing Black cohosh (Cimicifuga racemosa).
Recalls & Warnings
June 27, 2007
Warning Labels to be Required for Green Tea and Black Cohosh Products
On June 26, 2007, the U.S. Pharmacopeia (USP) Dietary Supplements Information Expert Committee (DSI-EC) voted to require cautionary statements on the labels for green tea extracts and black cohosh dietary supplements.
Recalls & Warnings
May 01, 2009
FDA Warns Consumers to Stop Using Hydroxycut -- Product Being Tested by ConsumerLab.com
On May 1, 2009, the U.S. Food and Drug Administration warned consumers to immediately stop using Hydroxycut products by Iovate Health Sciences Inc., of Oakville, Ontario and distributed by Iovate Health Sciences USA Inc. of Blasdell, N.Y.
Recalls & Warnings
January 02, 2004
Canada Reiterates Warning on Products Containing Kava
On December 23, 2003, Health Canada reminded Canadian consumers of the serious risks associated with the use of products containing kava.
Recalls & Warnings
May 18, 2012
Caution with Butterbur Indicated by UK Warning
England's Medicines and Healthcare Products Regulatory Agency (MHRA) advised consumers in early 2012 not to take unlicensed butterbur (Petasites hybridus) herbal products due to potential health risks.
Recalls & Warnings
August 25, 2002
Canadian Recall and Stop-Sale Order on All Kava Products
Health Canada is issuing a stop-sale order for all products containing the herb kava after a safety assessment concluded there is insufficient evidence to support their safe use. The department is also requesting the recall of these products from all levels of the market.
Recalls & Warnings
May 24, 2016
Seller of Joint Health, Omega-3 Supplements & More Warned for Manufacturing Violations, Drug Claims
On May 13, 2016, the FDA issued a warning letter to Rocky Fork Formulas, Inc.
Recalls & Warnings
May 23, 2013
Maker of Liver Detox and Insulin Supplements Warned For Drug Claims
On April 24, 2013, the FDA issued a warning letter to Glucorell, Inc.
Recalls & Warnings
September 05, 2013
Seller of Herbal Supplements and "Tonics" Warned For Manufacturing Violations and Drug Claims
On May 24, 2013, the FDA issued a warning letter to Sundial Herbal Products following a facility inspection which found the company's products, including Woman Back Tonic, Koromantee, Wood and Root Tonic, Arthritis, Asthma, Diabetics, Sundial Ashanti Weight Loss Energy Lifter, Appetite Suppresser, ...
Recalls & Warnings
August 16, 2013
Ginkgo, Milk Thistle, Cleanse and Nopal Supplement Maker Warned For Manufacturing Violations, Drug Claims
On July 23, 2013, the FDA issued a warning letter to Natural Products Services, Inc.
Recalls & Warnings
February 13, 2013
Manufacturer of Heart, Multivitamin, Cranberry, and Longevity Supplements Warned For Adulteration and Drug Claims
On January 29, 2013, the FDA issued a warning letter to M.D.R. Fitness Corp. following a facility inspection which found violations of good manufacturing practices which cause the company's products to be adulterated.
Recalls & Warnings
November 04, 2015
Green Tea from Tea Bags Linked to Acute Hepatitis
According to a case report published on September 23, 2015 (Lugg, BMJ Case Rep 2015), a 16-year old girl in England developed acute hepatitis in connection with the consumption of green tea.
Recalls & Warnings
April 14, 2015
Muscle Supplement Linked to Serious Liver Injury
On April 13, 2015, the FDA warned consumers not to use the muscle growth supplement Tri-Methyl Xtreme (distributed by Extreme Products Group) because it has been linked to serious liver injury.
Recalls & Warnings
December 24, 2013
Muscle Growth Supplement Linked with Liver Failure
On December 23, 2013, the FDA advised consumers to immediately stop using muscle growth supplement Mass Destruction (by Blunt Force Nutrition) because it is labeled as containing at least one synthetic anabolic steroid and has been linked to at least one reported case of liver failure.
Recalls & Warnings
January 02, 2004
Health Canada Warns Consumers Not to Use Health Products Containing Comfrey
On December 12, Health Canada advised Canadian consumers not to ingest the herb comfrey or any health products that contain comfrey because they might contain a compound called echimidine, which may cause liver damage.
Recalls & Warnings
April 26, 2013
Seller of Immune, Cholesterol, Liver and Blood Sugar Products Warned For Drug Claims
On March 20, 2013, the FDA issued a warning letter to Birkdale Medicinals LLC, following a review of the company's website which found statements made about Birkdale products, including Immune Response 247, Cholestat, Silymarin 81 and LevelStat, to be drug claims.