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CL Answer

Adrenal Fatigue and Adrenal Support Supplements: Do they work and are they safe?

Find out what's really in supplements for adrenal support and adrenal fatigue, including herbal adrenal support supplements and bovine derived adrenal support supplements. Find out if they really work and if they are safe. ConsumerLab.com's answer explains.

Adrenal Fatigue and Adrenal Support Supplements -- Tired Woman Falling Asleep at Her Desk

Product Review

Licorice and DGL Supplements, Candies, and Tea Review

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

Licorice & DGL Review 2025

Clinical Update

7/11/2025

Licorice for Adrenal Support?

Can licorice help improve symptoms of "adrenal fatigue" such as stress, anxiety, or fatigue? Find out in our article about "adrenal support" supplements.

CL Answer

Rhodiola and ashwagandha are both promoted to help with stress and anxiety. Is it safe to take them at the same time?

Find out if it is safe to take ashwagandha and rhodiola together. Both herbs are promoted to help with stress and anxiety, but may also lower blood pressure and have other side effects. ConsumerLab.com's answer explains.

Man in Light Blue Comparing Supplement Bottles

CL Answer

Desiccated Beef Liver and Beef Organ Supplements: Nutrition & Safety

Description of desiccated beef liver, including what it is used for, its nutrient content, and safety concerns.

Beef liver powder

CL Answer

A tea called Throat Coat made me lethargic and I was found to have low potassium. Is this a known problem? I was drinking 5 cups a day.

Throat Coat tea information, including licorice root content, potassium loss, and symptoms such as lethargy, increased blood pressure and fluid retention. ConsumerLab.com's answer explains.

Throat Coat Tea and Potassium Loss -- box of Throat Coat tea

CL Answer

Do any supplements help for varicose veins or chronic venous insufficiency?

Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.

Varicose Veins

CL Answer

Is there evidence that d-limonene can help fight cancer?

Find out if d-limonene can help fight cancer or help for GERD (gastroesophageal reflux disorder), including evidence from clinical studies.

Lemon with Peel Coming Off

Recalls & Warnings

September 25, 2025

FDA Warns Consumers Not to Use Joint Pain Supplement FTX PLUS

On September 5, 2025, the FDA advised consumers not to purchase or use FTX PLUS, a product promoted for joint pain on various websites, including Walmart and possibly in some retail stores.

Recalls & Warnings

March 23, 2026

FDA Warns Consumers Not to Use ULTRA ADVANC3 Joint Supplements

On February 26, 2026, the FDA warned consumers not to purchase or use ULTRA ADVANC3 and ULTRA ADVANC3 GOLD, products promoted for joint pain relief, because FDA testing found that they contain undeclared dexamethasone, diclofenac, and methocarbamol, which are not permitted in ...

CL Answer

Which supplements help to improve energy and decrease fatigue?

Energy supplements and vitamins - Some can help increase energy and reduce fatigue, including CoQ10, curcumin/turmeric, cocoa, and B vitamins.

Supplements to Improve Energy and Decrease Fatigue -- tired woman yawning at desk

Recalls & Warnings

April 02, 2026

Kian Pee Wan Capsules Recalled

On March 30, 2026, Aphreseller, a seller on eBay, announced a nationwide recall of all lots of Kian Pee Wan capsules after FDA testing found that the product contained undeclared drug ingredients, dexamethasone and cyproheptadine, which are not permitted in dietary supplements.

Recalls & Warnings

April 20, 2026

FDA Warns Consumers Not to Use Certain Pain Relief Supplements

On April 7, 2026, the FDA warned consumers not to purchase or use eight supplements labeled as containing hyaluronic acid and promoted for pain relief because they contain undeclared drugs.

Clinical Update

10/28/2024

Supplements for Varicose Veins

Do any supplements reduce the appearance of varicose veins or improve the symptoms of chronic venous insufficiency? Find out in our updated article about supplements for varicose veins and chronic venous insufficiency.

Recalls & Warnings

December 19, 2024

Force Forever Joint Pain Supplement Recalled

On December 12, 2024, GNMart INC recalled all lots of Force Forever, a supplement promoted for joint pain, because FDA tests found it to contain undeclared diclofenac and dexamethasone.

Recalls & Warnings

April 23, 2025

FDA Warns Consumers Not to Use ADVANCED KING Joint Supplement

On February 10, 2025, the FDA warned consumers not to purchase or use the joint pain supplement ADVANCED KING (Naturista Store LLC), because FDA analysis confirmed the product contains dexamethasone, diclofenac, and methocarbamol.

Recalls & Warnings

September 24, 2024

Supplement for Eczema Recalled

On September 18, 2024, 123Herbals LLC issued a recall for all lots of Vail-Bon Jie Yang Wan capsules, which are promoted to treat eczema and other skin conditions, because they contain undeclared dexamethasone and chlorpheniramine.

Recalls & Warnings

October 08, 2024

AK Forte Joint Pain Supplement Recalled

On October 8, 2024, C&A Naturistics voluntarily recalled all lots of AK Forte, 400 mg tablets because FDA laboratory analysis found products to contain undeclared diclofenac, dexamethasone, and methocarbamol.

Recalls & Warnings

December 05, 2024

Liquid Multivitamin Recalled

On November 6, 2024, Armonia Natural Store LLC issued a recall of 64 bottles of OneMultivitaminic GAF-PLUS Advance 300 ml because they contain undeclared acetaminophen and dexamethasone phosphate (which are not permitted in dietary supplements) and the undeclared sweetener aspartame.

Recalls & Warnings

May 29, 2025

Umary Joint Pain Supplements Recalled

On May 21, 2025, UMARY USA recalled all lots of Unavy Ácido HIALURÓNICO (30 caplets/850 mg) and Umovy Ácido HIALURÓNICO (30 caplets/850 mg).

Recalls & Warnings

December 19, 2024

Gout and Arthritis Supplement Recalled Due to Undeclared Drugs

On December 12, 2024, Buy-herbal recalled all lots of Nhan Sam Tuyet Lien Truy Phong Hoan capsules within expiry after FDA testing found them to contain undeclared furosemide, dexamethasone and chlorpheniramine. These drugs are not permitted in dietary supplements.

Clinical Update

10/30/2021

Pycnogenol vs. Other Pine Bark Extracts

There is some evidence that pine bark extract may help improve circulation and chronic venous insufficiency, but be aware that some supplements are not like those used in most clinical trials. Find out what to look on labels in our updated answer to the question: What is Pycnogenol and does it work?

Clinical Update

11/07/2024

Vein Health: Does Butcher's Broom Help?

Does butcher’s broom reduce varicose veins or related symptoms? Find out in our updated article about supplements for varicose veins and chronic venous insufficiency (CVI).

Clinical Update

5/08/2025

Supplements for Hemorrhoids

Do supplements such as Pycnogenol, butcher’s broom, or aescin (found in horse chestnut), help people with hemorrhoids? Find out in our article: Do any supplements help for varicose veins or chronic venous insufficiency?

Clinical Update

4/17/2025

Supplements for Varicose Veins?

Are any supplements recommended for varicose veins by vascular experts? Find out in our article about supplements for varicose veins or chronic venous insufficiency.

Clinical Update

11/13/2025

Supplement for Spider Veins?

Does taking diosmin, a citrus bioflavonoid, reduce spider veins? Find out what a recent study showed in our article about supplements for chronic venous insufficiency.

Recalls & Warnings

December 14, 2023

Pain Relief Tea Recalled, Found to Contain Prescription Drugs

On December 13, 2023, WS Global issued a recall of all lots of the company’s Himalayan Pain Relief Tea after products were found to contain diclofenac and dexamethasone, prescription drugs that are not listed on the product’s label.

Recalls & Warnings

September 25, 2023

FDA Warns Consumers Not to Use Tapee Tea

On August 31, 2023, the FDA warned consumers not to purchase or use Tapee Tea products after FDA laboratory analysis found them to contain dexamethasone and piroxicam, drugs that are not listed on the product's label.

Clinical Update

7/15/2012

Feeling fatigued? Iron may help

It's well known that fatigue can result from iron-deficiency anemia, but new research shows that some women who are not anemic can also benefit from iron. Women ages 18 to 53 with unexplained fatigue given iron experienced a nearly 50% reduction in fatigue in a recently published study. Get details about the treatment (including the dosage, duration, and type of iron supplement used) in the update to the Iron Supplements Review, which includes our tests of iron supplements similar to that used in this study. More >>

Clinical Update

1/11/2022

Ginkgo and Cistanche for Chronic Fatigue Syndrome?

Does supplementing with ginkgo and cistanche extracts help reduce symptoms of chronic fatigue syndrome? See what a recent study showed in our updated answer to the question: Which supplements help to improve energy and decrease fatigue?

Clinical Update

9/26/2023

Creatine for Post-COVID Fatigue?

Does supplementing with creatine reduce fatigue or other symptoms in people with post-COVID fatigue syndrome? Find out what a recent study showed in the Creatine - What It Does section of our Muscle & Workout Supplements Review. Also see our Top Picks for creatine.

Also see: How Should You Take Care of Yourself After You’ve Had COVID-19?

Clinical Update

9/26/2024

Collagen to Reduce Fatigue?

Did supplementing with collagen peptides reduce fatigue? Find out what a recent study showed in the Fatigue section of our Collagen Supplements Review, which includes our Top Picks for collagen.

Clinical Update

1/12/2024

L-Theanine for Fatigue?

Did drinking a beverage containing L-theanine, with or without CBD, reduce fatigue? See what a recent study showed in the Stress, sleep and cognition section of our L-Theanine Review, which includes our Top Picks for L-theanine.

Also see: Which supplements help to improve energy and decrease fatigue?

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.

Clinical Update

8/08/2025

BCAAs and Fatigue

Did taking branched-chain amino acids (BCAAs) reduce fatigue in older people? Find out what researchers reported, and our take on it, in our Muscle & Workout Supplements Review, which includes our Top Picks for BCAAs as well as creatine.

Clinical Update

7/08/2022

Supplement for Post-COVID Fatigue?

Did supplementing with oxaloacetate reduce symptoms in people with post-COVID fatigue in a recent study? Find out in the Strategies for managing long COVID section of our article about How to Take Care of Yourself After You’ve Had COVID-19.

Clinical Update

9/02/2022

CoQ10 for Post-COVID Fatigue?

Can CoQ10 supplementation reduce physical and mental fatigue in people experiencing prolonged COVID symptoms? See what a recent study found in the What It Does section of our CoQ10 Supplements Review.

Clinical Update

8/18/2013

Ginseng Reduces Cancer-Related Fatigue

A well-controlled clinical trial recently showed reduced fatigue among cancer patients given a particular type and dose of ginseng. Get the details, as well as our test results for 16 ginseng supplements, in the updated Ginseng Supplements Review >> 

Clinical Update

10/18/2014

Curcumin for Cognition and Fatigue

A study found that taking curcumin daily improved certain measures of cognitive function and fatigue in healthy men and women ages 60 to 85. Get the details, as well as our reviews of curcumin products, in the updated Curcumin Supplements Review >> 

Clinical Update

6/02/2020

Ubiquinol for Fatigue?

Does taking ubiquinol (the active form of CoQ10) help men and women who are experiencing fatigue in daily life? Find out what a recent study showed in the What It Does section of the CoQ10 and Ubiquinol Supplements Review. Also see our Top Picks for CoQ10 and ubiquinol.

News Release

December 10, 2002

Lupus patients cautioned about hormone supplement — ConsumerLab.com releases DHEA testing results online today

WHITE PLAINS, NY — December 10, 2002 — In its latest Product Review, ConsumerLab.com found that 3 of the 17 DHEA (dehydroepiandrosterone) supplement products it tested contained less than their claimed amounts of this hormone — one having less than one-fifth of what it claimed.

News Release

March 13, 2001

ConsumerLab.com review of vitamin E supplements finds some insufficiencies and need for clearer labeling; test results released online today

WHITE PLAINS, NY — March 13, 2001 — ConsumerLab.com today released results of its Product Review of vitamin E products. Vitamin E is one of the most popular dietary supplements in the U.S.

Recalls & Warnings

February 06, 2023

FDA Warns Companies Promoting Products to Treat Monkeypox, COVID-19, & Other Viruses

On January 30, 2023, the FDA issued a warning letter to four companies following review of the company websites, which found statements about company products to be drug claims because they were promoted to mitigate, prevent, treat, diagnose, or cure viruses such as monkeypox.

Recalls & Warnings

September 20, 2010

Many Supplements Recalled for Hormone-Affecting Compounds

On September 20, 2010, the U.S. FDA posted a Safety Notice regarding the recalls of several products marketed as dietary supplements that contain aromatase inhibitors, commonly known as "ATD.

Recalls & Warnings

September 15, 2010

Recall of Testosterone-Boosting Supplement

On September 14, 2010, the FDA posted a notice that KiloSports is recalling Clomed (60 count bottles), a supplement with claims to "release gonadatropin," "elevate testosterone" and "promote spermatogenesis."

Recalls & Warnings

July 15, 2011

FDA Inspection Finds Manufacturing Problems with Several Supplements Including Women's Multivitamin

The U.S. FDA recently posted a Warning Letter sent to BioSan Laboratories of Derry, New Hampshire on June 17, 2011 concerning multiple violations of Good Manufacturing Practice regulations and labeling rules.

Recalls & Warnings

June 04, 2012

FDA Warning on Supplement for Pain Relief

On June 1, 2012, the U.S. FDA warned consumers that Reumofan Plus, marketed as a “natural” dietary supplement for pain relief and other serious conditions, contains several active pharmaceutical ingredients not listed on the label that could be harmful.

Recalls & Warnings

December 21, 2012

Dangerous Supplement Being Sold Under New Name

On December 21, 2012, the FDA warned consumers that Reumofan Plus, a dietary supplement promoted for arthritis and muscle pain that has been linked to serious and sometimes fatal side effects, is now being sold under the name WOW.

Recalls & Warnings

May 29, 2018

FDA Warns Seller of "Aromatase Inhibitor" Supplement

On May 18, 2018, the FDA issued a warning letter to Performance Nutrition Formulators LLC d.b.a. VMI Sports because its product Arimistane contains Androsta-3,5-Diene-7,17-Dione, an ingredient that the FDA considers to be a new drug and not a dietary supplement ingredient.

Recalls & Warnings

February 20, 2013

Recall: Arthritis and Muscle Pain Supplement Contains Prescription Drugs

On February 15, 2013, Reumofan Plus USA, LLC and Reumofan USA, LLC announced a recall of Reumofan Plus, a dietary supplement promoted for arthritis and muscle pain, because it was found to contain the active pharmaceutical ingredients methocarbamol, dexamethasone, and diclofenac.

Recalls & Warnings

January 17, 2018

Joint and Pain Relief Product Contains Undeclared Drug

On January 17, 2018 Health Canada warned consumers that Linsen Double Caulis Plus, a supplement for joint pain, was found to contain the undeclared drug dexamethasone.

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

October 18, 2017

FDA Warns Seller of Arthritis, Blood Pressure, Diabetes Supplements For Making Drug Claims

On August 15, 2017, the FDA issued a warning letter to Years to Your Health, Inc., following an inspection of the company's website which found a number of their products to be misbranded, as they contained drug claims.

Recalls & Warnings

October 18, 2017

Total Body Nutrition Warned for Banned Stimulant in Supplements

On September 28, 2017, the FDA issued a warning letter to Total Body Nutrition following a facility inspection which found some of the company's products to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary ...

Recalls & Warnings

November 14, 2014

FDA Warns Consumers Not to Buy or Use Muscle Enhancement Supplement

On November 13, 2014, the FDA advised consumers not to buy or use the muscle enhancement supplement Mayhem (Chaotic-Labz) because it was found to contain the undeclared drugs cyproheptadine and dexamethasone. These drugs can cause serious side effects and can interact with other medications.

Recalls & Warnings

August 22, 2012

FDA Warns of Life-Threatening Side Effects and Withdrawal Symptoms from Two Arthritis, Muscle Pain Supplements

On August 21, 2012, the FDA issued a warning to consumers about the dangers of taking Reumofan Plus and Reumofan Plus Premium, two dietary supplements marketed for arthritis, osteoporosis and muscle pain.

Recalls & Warnings

October 21, 2014

Seller of Weight Loss, Saw Palmetto Supplements and More Warned for Drug Claims

On October 9, 2014, the FDA issued a warning letter to Bethel Nutritional Consulting, Inc., following a review of the company's website which found statements made about 15 Day Detox Diet, Alpha Lipoic Acid. 300 mg.

Recalls & Warnings

May 06, 2015

Joint Pain Supplements Found to Contain Diuretics, Antihistamines and Other Undeclared Drugs

On May 4, 2015, the FDA warned consumers not to buy or use the following supplements promoted for joint or back pain because they were found to contain undeclared drugs. Each was identified during an examination of international mail shipments.