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Prostate Supplements (Saw Palmetto and Beta-Sitosterol)

Read our review to find the best prostate supplements with saw palmetto and beta-sitosterol, evidence for using for benign prostatic hyperplasia, or BPH, safety, side effects, drug interactions and more. Find out which ones passed our test and why.

Prostate Supplements (Saw Palmetto and Beta-Sitosterol) Review

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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

CL Answer

Is Super Beta Prostate better than other prostate supplements?

Find out if Super Beta Prostate is effective, including clinical evidence and price.

Is Super Beta Prostate better than other prostate supplements? -- a bottle of Super Beta Prostate pills

CL Answer

Are there supplements that can reduce prostate size?

How to reduce prostate size using supplements for benign prostatic hyperplasia (BPH), including beta-sitosterol and saw palmetto.

Sign Saying BPH with Tablets on Blue Background

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.

How to Take Beta-Sitosterol -- man holding beta-sitosterol capsules

CL Answer

10 Supplements That May Help Reduce Nighttime Urination (And 5 That May Not)

Waking up more than once during the night to use the bathroom? Learn more about the 9 supplements that may help and 5 others that don't.

A toilet in an empty bathroom at night

CL Answer

Could taking vitamin C (500 mg), CoQ10, grape seed extract, fish oil, vitamin D3/calcium/magnesium/zinc interfere with taking beta-sitosterol with dinner?

Learn about drug interactions & proper dosages for supplements such as CoQ10, vitamin D & C, fish oil, magnesium, zinc and grape seed extract.

Doctor Holding Handful of Fish Oil

CL Answer

What supplements should I stop taking before surgery?

Info on which supplements to avoid before surgery due to increased risk of bleeding or interference with anesthesia.

Supplements to stop before surgery - operating room

CL Answer

Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?

Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.

Supplements for Hair Loss -- woman looking at hairbrush

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

April 17, 2021

ConsumerLab Identifies Best and Worst Avocado Oils Based on Testing

White Plains, New York, April 17, 2021 — Avocado oil has become increasing popular, but concern about the quality of products was raised in 2020 by a study from researchers at the University of California, Davis that found that as much as 82% of avocado oil samples bought locally or online in ...

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.

Product Review

Avocado Oil Review

Find the Best Avocado Oil for Purity, Freshness and Taste. Some Others May Include Rotten Avocado or Other Oils.

Avocado oil reviewed by 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.

Woman holding a pill and showing it to a man while sitting at a table about to eat a meal

CL Answer

Are there supplements I should avoid when taking apixaban (Eliquis) or similar blood thinner drugs like Xarelto?

Learn about supplement interactions with apixaban (Eliquis), rivaroxaban (Xarelto) and other blood thinner drugs in the direct factor Xa inhibitors class.

Eliquis Supplement Interactions -- box of Eliquis

News Release

August 22, 2019

Best Reishi Mushroom Supplements Identified by ConsumerLab

White Plains, New York, August 22, 2019 — Reishi mushroom supplements are promoted for many uses, from strengthening the immune system and lowering blood sugar, to improving cardiovascular health and reducing cancerous tumors.

Clinical Update

10/04/2011

Saw Palmetto May Not Work

It's used by many men hoping to reduce urinary symptoms caused by benign growth of the prostate, or BPH, but a new, well-designed study suggests that it doesn't work. Some other recent research suggest the same. Even when doubling and tripling the standard dose, the high-quality saw palmetto extract used in the new study failed to provide benefit.

What should you do? You may want to consider a different supplement -- beta-sitosterol, a phytosterol. The evidence remains fairly good for beta-sitosterol. To find out more about saw palmetto, beta-sitosterol, and the supplements we have tested, see the Prostate Supplements ReviewMore >>

Clinical Update

6/24/2022

Beta-sitosterol & Bleeding Risk?

Does taking beta-sitosterol increase bleeding risk? Find out in the Concerns and Cautions section of our Prostate Supplements Review.

Clinical Update

1/04/2022

Caution With Stinging Nettle

Stinging nettle is promoted to reduce seasonal allergies and is a common ingredient in prostate supplements. Rarely, however, it may cause breast changes in both men and women, as was recently reported. Get the details in our updated article about Supplements for Seasonal Allergies. Also see the Concerns and Cautions section of our Prostate Supplements Review.

Clinical Update

5/09/2023

Prostadine for Prostate & Urinary Health?

Prostadine is a supplement that claims to support prostate health and bladder control, but does it really work? Find out in our Prostate Supplements Review, which includes our Top Pick among prostate supplements.

Also see our article about  supplements to reduce nighttime urination.

Clinical Update

7/25/2023

Saw Palmetto Side Effects

What are the most commonly reported side effects with saw palmetto use? Find out in the Concerns and Cautions section of our Prostate Supplements Review. Also see our Top Picks among prostate supplements.

Clinical Update

2/06/2024

Prostate Supplement Adverse Events

A popular prostate supplement has been associated with more than 1,000 cases of adverse events, particularly reports of blood in the urine, according to a recent review. Get the details in our Prostate Supplements Review, which includes our Top Pick among prostate supplements.

CL Answer

Is quercetin helpful for a specific condition? I see it as an ingredient in several different types of supplements.

Learn more about quercetin, including the benefits of quercetin and other evidence from clinical studies on prostatitis and memory.

CL Answer

Which supplements can cause diarrhea?

Can supplements like magnesium cause diarrhea? Find out which supplements may cause diarrhea, such as vitamin B12, curcumin, magnesium, vitamin C and fish oil.

Which supplements can cause diarrhea? -- Woman with gastrointestinal pain

CL Answer

Which supplements or OTC medications help reduce flatulence (gas), and are there any that make it worse?

Find out which supplements may help reduce flatulence (gas), and learn which supplements or foods may worsen symptoms of flatulence.

Older woman sitting on her bed and holding her stomach due to gas and bloating

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 19, 2015

ConsumerLab.com Tests Popular Prostate Supplements with Saw Palmetto and Beta-Sitosterol

White Plains, New York, September 19, 2015 — Can prostate supplements with ingredients such as saw palmetto or beta-sitosterol improve symptoms of an enlarged prostate, a condition affecting more than half of men over age 60? And, if so, which supplements are properly made and labeled and ...

Clinical Update

11/09/2021

Saw Palmetto Concern

Does saw palmetto cause sexual dysfunction? Get the details in the updated Concerns and Cautions section of our Prostate Supplements Review.

CL Answer

Which supplements and foods help relieve constipation and which can cause constipation?

Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.

Which supplements can cause constipation? -- Woman with gastrointestinal pain

CL Answer

Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.

CL Answer

Which supplements help with erectile dysfunction?

Supplements for erectile dysfunction. Find out which supplements can help with ED, including ginseng, L-arginine, and maca.

Man in Grey Tee Holding Water and White Supplement

CL Answer

I've heard that taking vitamin D can reduce your natural production of melatonin and interfere with sleep. Is this true?

Can Vitamin D interfere with your body's melatonin production, and can taking vitamin D interfere with sleep?

Vitamin D

CL Answer

How much calcium do you need each day, what forms are best, and how much is too much?

Learn about the recommended daily intake of calcium from food & supplements and why taking too much can be harmful. Also, learn about the forms of calcium that are available and which are best.

None

Clinical Update

8/03/2019

Saw Palmetto for Prostate?

A recent clinical study is the latest to evaluate the potential benefit of saw palmetto in reducing symptoms of benign prostatic hypertrophy (BPH) in men. Find out what this, and previous studies, have shown in the What It Does section of the Prostate Supplements Review. Also see our Top Picks for saw palmetto and beta-sitosterol supplements.

Clinical Update

10/21/2015

Men's Health Supplements Don't Help Prostate Cancer

While there is some evidence that certain supplements may help relieve symptoms of prostate enlargement (BPH), a recent study shows no benefit with regard to prostate cancer treatment. Details are in the Prostate Supplements Review >>

Clinical Update

5/06/2017

Trouble Reported With Saw Palmetto

A 64 year-old man developed pancreatitis and heart block (dangerously slow heart rate) after supplementing with saw palmetto, according to a recent report. For details, see the "Cautions and Concerns" section of the Prostate Supplements Review >>

Clinical Update

11/17/2023

Saw Palmetto for Hair?

Does taking saw palmetto orally or applying it to the scalp help reduce hair shedding in men and women? Find out what a recent study found in the Saw Palmetto section of our Prostate Supplements Review.

Also see our article about supplements and shampoos for hair.

CL Answer

Does AZO Bladder Control really work for overactive bladder?

AZO Bladder Control information, including results from clinical studies on bladder control, dosage, and safety.

CL Answer

Is echium oil a good alternative to fish oil? I am allergic to fish.

Echium oil as an alternative to fish oil. Learn more for those with fish allergies, including information on omega-3 fatty acids.

Fish Oil Tablets and Liquid on White Background

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.

Woman holding vitamins in hand

Product Review

Reishi Mushroom Supplements Review

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

Reishi Mushrooms tested by ConsumerLab.com

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

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

Lycopene Supplements Review

Find the Best Lycopene Supplements. CL Tests Reveal That Not All Lycopene Supplements Contain What They Claim.

Lycopene Supplements Reviewed by ConsumerLab.com

CL Answer

Why is beta-carotene still an ingredient in some supplements? Isn't it dangerous?

Beta-carotene can be found in supplements. Get clinical evidence from studies on beta-carotene's impact on mortality, smoking, and vision.

Elderly Woman Reading Supplement Bottle

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 Review

Multivitamin and Multimineral Supplements Review

Best Multivitamins In 2023 -- Caution with Gummies

CL Answer

Does AHCC (active hexose correlated compound) have anticancer or antiviral benefits, and is it safe?

Learn about AHCC (active hexose correlated compound), including whether it is beneficial for liver, pancreatic, or prostate cancer, chemotherapy-related side effects, or the flu, and if it is safe.

Capsules of AHCC in wooden spoon in front of green leaf

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

Pomegranate Juice and Supplements Review Article

What Are the Benefits of Pomegranate Juice and Supplements? Find Out What Pomegranate Can and Cannot Do For Your Health.

Pomegranate Juice Supplements Reviewed by ConsumerLab

CL Answer

Does consuming casein protein, like in Greek yogurt, increase the risk of prostate cancer?

Find out if consuming casein protein, found in Greek yogurt and other dairy products, increases the risk of prostate cancer.

Greek Yogurt

CL Answer

What are the health benefits of nutritional yeast and is it safe?

Learn about the nutritional content and health benefits of nutritional yeast (nooch), evidence for or against nutritional yeast for boosting the immune system, lowering cholesterol and blood sugar, plus safety and side effects of nutritional yeast.

Nutritional Yeast

CL Answer

Is it true that vitamin D can increase the risk of prostate cancer in men?

Information on the potential link between vitamin D and prostate cancer, based on a clinical study.

Vitamin D & Prostate Cancer Risk -- bottle of vitamin D capsules

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

April 26, 2012

ConsumerLab.com reviews prostate supplements with saw palmetto and/or beta-sitosterol and finds few likely to be effective

White Plains, New York April 26, 2012 — Can supplements reduce the symptoms of prostate enlargement in men, as some products claim? ConsumerLab.com researchers recently tackled this question, investigating the evidence behind prostate supplements and testing the quality of these products.

CL Answer

Are L-carnosine supplements helpful and safe?

Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.

Capsules with white powder and spoon holding white powder on white background

CL Answer

The maker of my multivitamin says it doesn't include folic acid because too much from supplements can be harmful. Is that true?

Learn more about the harmful effects from too much folic acid, including increased risk of prostate cancer and kidney damage.

Harm from Too Much Folic Acid ? -- Multivitamin bottle and label

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.

Fish Oil Supplements Poured from Bottle into Hand

CL Answer

Is Modified Citrus Pectin (MCP) helpful for prostate or breast cancer?

Modified Citrus Pectin (MCP) information including its effects on cancer, such as prostate cancer, and more.

Modified Citrus Pectin for Cancer? -- close up of an orange and orange peel

CL Answer

Are antioxidant supplements good or bad for you?

Learn more about whether antioxidants like astaxanthin, beta-carotene, coenzyme Q10, curcumin, resveratrol, selenium, vitamin A, vitamin C and vitamin E are safe and if they help prevent chronic diseases.

Can Antioxidants Cause You to Die Sooner? -- antioxidant supplements and carrots

CL Answer

Do any supplements reduce the side effects of chemotherapy? Should any be avoided?

Find out if there are any supplements that can help with the side effects of chemotherapy, such as nausea, vomiting, diarrhea, nerve damage and others. ConsumerLab.com's answer explains.

Supplements & Chemotherapy Side Effects -- chemotherapy medicine and capsules

CL Answer

Are cranberry supplements helpful for men? Can they help with symptoms of an enlarged prostate, prostatitis, or urinary tract infections?

Learn more about how cranberry pills, cranberries, cranberry juice and supplements can help prevent urinary tract infections.

Cranberry Supplements for Men? -- Bottle of cranberry capsules

Recalls & Warnings

May 29, 2021

FDA, FTC Warns Five Sellers of "Infertility" Supplements

The FDA and FTC (Federal Trade Commission) sent warning letters to the following five companies in May for illegally selling dietary supplements promoted with claims to treat infertility and other reproductive health issues:

Recalls & Warnings

August 25, 2022

Oregon’s Wild Harvest Warned by FDA for Manufacturing Violations

On July 8, 2022, the FDA issued a warning letter to Oregon’s Wild Harvest, Inc.

Recalls & Warnings

December 29, 2022

EarthLab, Inc. Warned for Promoting Curcumin, Elderberry to Treat Pain & Flu

On November 10, 2022, the FDA issued a warning letter to EarthLab, Inc., dba Wise Woman Herbals following inspection of the company’s website which found statements about the company’s products to be drug claims because they suggest the products can prevent or treat disease.

Recalls & Warnings

March 23, 2023

FDA Warns Herbal Vitality for Promoting Supplements to Treat Cold & Flu, Kidney Stones & More

On March 7, 2023, the FDA issued a warning letter to Herbal Vitality, Inc.

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.

News Release

September 15, 2009

ConsumerLab.com finds many prostate supplements have correct ingredients, but four fail review -- New report on 19 saw palmetto and beta-sitosterol supplements

White Plains, New York — Tuesday, September 15,2009 — ConsumerLab.com announced test results today from its newest Product Review of Prostate Supplements.

Recalls & Warnings

February 17, 2018

FDA Warns Seller Reishi Mushroom Supplements

On February 7, 2018, the FDA issued a warning letter to Reishi D. International, Inc., following a facility inspection which found the company's Reishi D.

Recalls & Warnings

September 28, 2017

Seller of Prostate, Reishi Supplements Warned for Manufacturing Violations

On September 11, 2017, the FDA issued a warning letter to Vicare International (USA), Inc.

Recalls & Warnings

January 29, 2018

Seller of Male Enhancement, Prostate Supplements & More Warned for Drug Claims

On January 10, 2018, the FDA issues a warning letter to USA Labs AKA Power Source Distributors, Inc following a review of the company's website which found statements made about its products, including Maximum Male, Beta 300 (Beta Prosturol), Chromium Max 1000, DHEA, Healthy Cold-X and ...

Recalls & Warnings

January 13, 2018

Seller of Depression, Prostate Supplements & More Warned for Manufacturing Violations, Drug Claims

On August 21, 2017, the FDA issued a warning letter to Irmo-Vita, LLC, following a facility inspection which found that several of the company's products, including Hysta-Min, Man-Affirm, Phung-EX, and Bacto- EX to be adulterated because they were prepared, packed, or held ...

Recalls & Warnings

June 06, 2017

Seller of Vision, Cholesterol, Prostate Supplements and More Warned for Drug Claims

On May 25, 2017, the FDA issued a warning letter to Herbal Doctor Remedies following a facility inspection and review of the company's websites, www.herb-doc.com, www.ChinaSecretMed.com and www.theraherb.

Recalls & Warnings

July 18, 2017

Seller of "Super Strength Prostate Formula," Acai Berry Supplements & More Warned for Drug Claims

On June 30, 2017, the FDA issued a warning letter to Nature's Health Company, LLC, following a facility inspection and review of the company's website, www.natureshealthcompany.

Recalls & Warnings

January 19, 2022

FDA Warns Seller of Carnitine and Alpha Lipoic Acid Supplements

On November 18, 2021, the FDA issued a warning letter to GeroNova Research Inc.

Recalls & Warnings

January 03, 2022

Seller of Wormwood, Aloe Supplement Warned by FDA

On December 7, 2021, the FDA issued a warning letter for Western Herb Products, Inc.

News Release

April 28, 2009

40% of Green Tea and Selenium Products Fail ConsumerLab.com Review of Cancer-Prevention Supplements; Lycopene Supplements Pass

WHITE PLAINS, NEW YORK — APRIL 28, 2009 — ConsumerLab.com announced results today of its Product Review of Supplements for Cancer Prevention.  Among the products that ConsumerLab.com selected for testing, quality problems were found with two out of five green tea supplements.

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.

Recalls & Warnings

April 02, 2021

FDA Warns Sellers of Prostate, Reishi, Immune Products, and More

On March 16, 2021, the FDA issued warning letters to two companies following reviews of their websites which found statements made about the companies' products to be drug claims.

Recalls & Warnings

December 15, 2020

Mushroom Supplement Seller Warned for Drug Claims

On December 4, 2020, the FDA issued a warning letter to Desert Alchemist LLC following a review of the company's website, social media, and Etsy.com store (www.etsy.

Recalls & Warnings

November 10, 2020

Seller of Cholesterol-Lowering Supplements Warned for Drug Claims

On October 29, 2020, the FDA issued a warning letter to Natural Sprout Co.

Recalls & Warnings

November 10, 2020

FDA Warns Immusist for Drug Claims

On October 16, 2020, the FDA issued a warning letter to Immusist, LLC following a review of the company's website, which found statements made about the company's products IMMUSIST Original and IMMUSIST Natural to be drug claims.

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

June 23, 2017

FDA Warns Seller of Menopause, Sexual Enhancement, Prostate Supplements and More For Manufacturing Violations

On May 26, 2017 the FDA issued a warning letter to Star Health & Beauty LLC, following a facility inspection which found the company's products, including Nu Essentials Royal Jelly Capsules, NuMan Male Enhancement Capsules, Star's Male Potency Tonic, NuGen HP, She Max HP, and V Max ...

Recalls & Warnings

September 25, 2018

Seller of B Vitamins, Multis, Glucosamine & More Warned for Manufacturing Violations

On August 31, 2018, the FDA issued a warning letter to Independent Nutrition Inc., following a facility inspection which the company's products, including  B-50 Complete, Multi-Vitamin & Mineral Complex (a.k.a.

Recalls & Warnings

September 25, 2018

FDA Warns Seller of Digestive Enzyme Supplements

On March 6, 2018, the FDA issued a warning letter to Uckele Health & Nutrition, Inc.

News Release

February 06, 2006

ConsumerLab.com finds most prostate supplements have correct ingredients, but three fail testing — Results posted for 22 supplements containing saw palmetto and beta-sitosterol

WESTCHESTER COUNTY, NEW YORK — FEBRUARY 6, 2006 — ConsumerLab.com announced test results today from its new Product Review of Prostate Supplements.

News Release

January 25, 2006

Sexual enhancement supplements analyzed by Consumerlab.com

WESTCHESTER COUNTY, NEW YORK — JANUARY 25, 2006 — ConsumerLab.com announced today that it found only six out of eleven supplements used for sexual enhancement to contain key ingredients listed on their labels and meet other quality criteria.

Clinical Update

1/18/2014

Green Tea "Blocks" Beta-Blocker

A new study shows that drinking green tea can drastically reduce the amount of a beta-blocker (nadolol, Corgard) absorbed into the bloodstream. Beta-blockers are typically taken to lower blood pressure, raising concern for people using green tea along with this beta-blocker and, possibly, related medications. Get the details, along with our tests of green tea drinks and supplements, in the update to the Green Tea Review >>   

If you take a beta-blocker (which includes the popular drugs metoprolol (Lopressor, Toprol) and propranolol (Inderal)), be aware that chromium and CoQ10 may offer benefits.

Clinical Update

2/17/2023

Beta-Alanine for Thinking & Mood?

Can supplementing with beta-alanine improve cognitive function or mood in older men and women? Find out what a recent study showed in the Beta-Alanine section of our CL Answer about L-Carnosine (which contains beta-alanine).

Also, see our CL Answer about supplements for memory and cognition.

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

December 05, 2014

Maker of Ginseng, Zinc, Calcium and More Warned for Manufacturing Violations

On November 20, 2014, the FDA issued a warning letter to Long Island Pharmaceuticals, LLC, following a facility inspection which found 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 26, 2012

Court Injunction Halts Sale of Cholesterol, CoQ10, Progesterone, Prostate Supplements and More

On November 20, 2012, Pharmacist's Ultimate Health agreed to cease sales and distribution of its dietary supplements by entering into a Consent Decree of Permanent Injunction in the U.S. District Court of Minnesota.

Recalls & Warnings

July 23, 2019

FDA Warns Seller of CBD Lotions, Patches, Tinctures and Pet Products

On July 22, 2019, the FDA issued a warning letter to Curaleaf, Inc.

Recalls & Warnings

July 16, 2019

FDA Warns Seller of Magnesium and CBD

On July 9, 2019, the FDA issued a warning letter to Ceba-Tek, Inc.

Recalls & Warnings

October 08, 2019

Seller of Tea, Colloidal Silver, Homeopathic Products Warned for Manufacturing Violations

On September 12, 2019, the FDA issued a warning letter to Herbal Healer Academy, Inc.

Clinical Update

4/18/2023

Lowering Cholesterol with Beta-glucan?

Consuming oats, which contain beta-glucan, can help lower cholesterol. But do beta-glucan supplements help? See what a study showed in the Benefits section of our Oat Cereals Review, which includes our Top Picks among oat products.

Also see our article about supplements for heart health to learn which other supplements may help lower cholesterol.

Clinical Update

9/28/2022

Beta-glucan Supplements for Lowering Cholesterol?

Beta-glucan from cereals such as oats and barley may help lower cholesterol, but be aware that other sources of beta-glucan (including some supplements) may not. Find out in our CL Answer about supplements for heart health.

News Release

January 03, 2006

Tests of memory enhancing supplements by ConsumerLab.com reveals lead in some ginkgo

WESTCHESTER COUNTY, NEW YORK — TUESDAY, JANUARY 3, 2006 — In its new test report on Memory Enhancement Supplements, ConsumerLab.com has revealed finding significant amounts of lead in certain products on the market.

Clinical Update

3/05/2016

Vitamin D and Prostate Cancer

A recent study looked at the association between vitamin D blood levels and the risk of advanced prostate cancer. Based on the findings from this and related studies, there seems to be a reasonable approach with vitamin D to potentially lower prostate cancer risk. Get the details (as well as our tests of products) in the Vitamin D Supplements Review >>

Clinical Update

7/21/2013

Soy Protein to Prevent Prostate Cancer?

Prostate cancer occurs less frequently in parts of the world where people eat more soy. So researchers recently gave a soy protein drink, or a placebo drink, to men who previously had prostate cancer to see if it reduced the risk of the cancer recurring. Learn what they found in the updated Protein Powders and Drinks Review >>

Clinical Update

3/29/2024

Vitamin D & Prostate Cancer-Related Bone Loss

Taking high-dose vitamin D during androgen deprivation therapy for prostate cancer may help some men prevent bone loss, according to a recent study. Get the details in the Prostate Cancer section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Clinical Update

4/15/2022

Mushrooms for Lowering Cholesterol?

The beta-glucan in oats can help lower elevated levels of cholesterol, but can the beta-glucan in mushrooms do the same? Find out in our article about Supplements and Foods for Lowering Cholesterol.

Clinical Update

6/07/2022

Carnosine vs. Beta-alanine

Does beta-alanine, a constituent of L-carnosine, have similar effects to supplementing with L-carnosine itself? Find out what evidence suggests in our updated article about L-carnosine.

Clinical Update

10/06/2017

Green Tea & Prostate Cancer

A recent study investigated the effects of green tea extract in men with pre-cancerous changes of the prostate. Find out if it helped in the "What It Does" section of the Green Tea Supplements and Drinks Review >>

Clinical Update

9/22/2018

Vitamin C and Prostate Cancer

Does taking vitamin C reduce the chance of developing prostate cancer? Find out what studies are showing, including one reported this month, in the What It Does section of the Vitamin C Supplements Review. (Also learn about vitamin C and cataracts and see our Top Picks for vitamin C.)

Clinical Update

9/10/2017

Olive Oil and Prostate Cancer

Another possible benefit of olive oil within a Mediterranean diet is a reduced risk of aggressive prostate cancer, according to a new study. For details about this and other benefits of olive oil, see the updated "What It Does" section of the Extra Virgin Olive Oils Review, which includes our Top Picks among products.

Clinical Update

3/20/2018

Saw Palmetto for Prostate?

Saw palmetto extract was once popular for reducing symptoms of prostate enlargement, but studies subsequently failed to find a benefit. A recent study assessed whether it could boost the effectiveness of conventional medical treatment. Get the results in the What It Does section of the Saw Palmetto Supplements Review.

Clinical Update

5/09/2011

Did you hear that DHA (an omega-3 fatty acid in fish oil) might raise the risk of prostate cancer?

This was recently in the news. Higher levels of DHA in the blood were associated with increased risk of high-grade prostate cancer. However, the findings do not mean that you should stop taking fish oil or eating fish. We talked with the researcher of this study and learned more. Get the facts in our Fish Oil Supplements ReviewMore >>

Clinical Update

3/01/2015

Selenium and Prostate Cancer

A new study suggests that men who have prostate cancer should not take supplements providing high-dose selenium. Earlier research has similarly advised against high-dose selenium for people with already adequate selenium intake. For details and more about selenium, see the Selenium Supplements Review >> 

Clinical Update

4/22/2015

Green Tea Extract and Prostate Cancer

A new study, funded by the National Institutes of Health, showed that fewer men with pre-cancerous lesions developed prostate cancer if given a daily green tea extract supplement, although the results were not statistically significant due, in part, to the small size of the study. However, a somewhat similar study found a significant benefit. Learn more about these studies, and see our test results for green tea supplements, teas, and drinks, in the Green Tea Review >>

Clinical Update

5/03/2014

Vitamin D Deficiency May Predict Advanced Prostate Cancer

According to a new study, prostate biopsies in men who are deficient in vitamin D are more likely to show a higher grade and stage of cancer than biopsies in men with higher levels of vitamin D. For more details, as well as our tests of vitamin D supplements, see the Vitamin D Supplements Review >> 

Clinical Update

7/14/2013

Fish Oil Linked to Prostate Cancer?

Headlines this week about a study showing an association between the fatty acids in fish oil and the development of prostate cancer have stirred concerns about consuming fish and fish oil supplements. For details about this study and studies of other effects of fish oil and omega-3 fatty acids, as well as test results and comparisons for 74 fish and other marine oil supplements, see the updated Fish/Marine Oil (Omega-3) Supplements Review >>

Clinical Update

1/16/2021

Coffee and Prostate Cancer Risk

Is drinking coffee associated with prostate cancer risk? Find out what a recent study suggests in our updated answer to the question: Does drinking coffee increase or decrease the risk of cancer? Can it slow cancer progression?

Clinical Update

3/27/2021

Curcumin & Prostate Cancer

Does curcumin benefit men undergoing chemotherapy for prostate cancer? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.

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

December 12, 2018

Seller of Protein Powder, Spirulina & Other Products Warned for Manufacturing Violations

On October 31, 2018, the FDA issued a warning letter to DynaPro International, Inc.

Recalls & Warnings

December 05, 2018

Seller of Cold and Flu Supplements, "SuperFood" & More Warned by FDA

On October 30, 2018, the FDA issued a warning letter to American Botanical Pharmacy following a review of the company's website (www.herbdoc.com) and Facebook page, which found statements made about some of its products to be drug claims.

Recalls & Warnings

December 01, 2018

Seller of 5-HTP, Potassium & More Warned for Manufacturing Violations

On September 7, 2018, the FDA issued a warning letter to The Delano Company, Inc.

Recalls & Warnings

June 05, 2018

FDA Warns Seller of Colloidal Silver

On May 17, 2018, the FDA issued a warning letter to Silver Armor, Inc.

Recalls & Warnings

May 12, 2018

Seller of Astaxanthin, Cinnamon, Pine Bark and More Warned for Manufacturing Violations

On March 22, 2018, the FDA issued a warning letter to Get The Tea following a facility inspection which found the company's products, including Get the Tea Astaxanthin Max, Get the Tea Colostrum Complete, and Get the Tea Pine Bark Capsules, to be adulterated because they were ...

Recalls & Warnings

September 19, 2018

Seller of Curcumin, Garcinia, Glucosamine and More Warned for Manufacturing Violations

On September 7, 2018, the FDA issued a warning letter to Best Nutrition Products, Inc.

Recalls & Warnings

September 19, 2018

FDA Warns Seller of Shilajit

On September 6, 2018, the FDA issued a warning letter to Adaptive Energy LLC, following an inspection of the company's website, which found statements made about its shilajit product, Purblack were found to be drug claims.

Recalls & Warnings

September 04, 2018

Federal Court Shuts Down Maker of Sexual Enhancement Products

On August 30, 2018, the FDA announced that U.S.

Recalls & Warnings

July 31, 2018

FDA Warns Seller of Joint Health and Cholesterol Supplements

On July 13, 2018, the FDA issued a warning letter to GC Natural, following a facility inspection which found a number of the company's products, including Red Pyrola Plus + Advanced Joint Formula Capsules, CSDP GOLD Capsules, Rejeune Optimal Kidney & Liver Support Extract balls, C.

Clinical Update

11/17/2013

Latest Supplement Recommendations

New draft recommendations on vitamin and mineral supplement use were published this week by the U.S. Preventive Services Task Force. The recommendations apply only to healthy adults without nutritional deficiencies. They focus only on the use of supplements for the prevention of cardiovascular disease and cancer at doses not exceeding tolerable upper intake levels. The recommendations are based on existing science and are generally consistent with information already presented in ConsumerLab.com's Product Reviews.  We have summarized the recommendations below, with links to more information in ConsumerLab.com's reports:


- Beta-Carotene and Vitamin E:  Supplementation with either does not provide a benefit. Vitamin E does not pose a risk of harm, but beta-carotene increases the risk of lung cancer in people at risk for lung cancer.

- Other Single Vitamins, Minerals, Pairs, and Multivitamins: There is inadequate evidence regarding a benefit or a risk of harm.

The task force stressed that at excessive doses (above tolerable upper intake levels) there is evidence of harm with supplementation, such as with vitamin A and vitamin D

Clinical Update

8/25/2013

Antioxidants: Too Much of a Good Thing?

A new, long-term study of Americans found the risk of dying over the course of the study (about 14 years) was lowest when antioxidant levels in the blood were above the lowest levels (the bottom 20% of the population). However, for people in the top 20% of blood levels for vitamins A and E, the risk of death increased compared to people with moderate levels. For selenium and beta-carotene, there was no significant difference in the death rate between moderate and high levels, although for vitamin C some additional benefit was seen at high, but not the highest, levels.
 
The results suggest that antioxidant supplements may be useful for those who are nutritionally deficient, but, as noted by the researchers, "beyond a certain threshold, higher levels do not lead to additional benefit, and may potentially be toxic." More details (including specific serum levels) are found in the linked updates to the following reviews, which include our test results and quality ratings of products:
 
 
  
  

Recalls & Warnings

August 20, 2019

Seller of Liposomal Curcumin, Vitamin C & Melatonin Warned for Manufacturing Violations

On August 6, 2019, the FDA issued a warning letter to Let's Talk Health, Inc.

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.

Clinical Update

3/18/2012

Lower Melanoma Risk with Vitamin A

A study of people ages 50 to 76 found the risk of developing melanoma (over an average of 6 years) was 40% lower among those who took a vitamin A supplement than among those who did not. The protective effect appeared strongest and most statistically significant among women, and only occurred with vitamin A from retinol and, not beta-carotene. For details, including the dose (which matters), see the updated information in the Vitamin A Supplement ReviewMore >>

Clinical Update

1/15/2019

Don't Take Minerals With Certain Supplements

Taking minerals like calcium and magnesium can dramatically reduce the absorption of carotenoids like lycopene, beta carotene, and astaxanthin. Get the details in the Concerns and Cautions section of the Lycopene Supplements Review.

Clinical Update

1/27/2019

Caution With Antioxidants

A new study suggests it might be risky to take antioxidant supplements during cancer treatment. We have added this important information to our answer to the following question: Can supplements with antioxidants like beta-carotene and vitamins A and E cause you to die sooner?

Clinical Update

9/01/2023

Green Tea Interactions

Drinking green tea can affect the absorption of many drugs, as was most recently shown with raloxifene (Evista), a medication used to treat osteoporosis and reduce breast cancer risk. Learn about these interactions (including those with certain statins, beta-blockers, and blood thinners) in the Concerns and Cautions section of our Green Tea Review. Also see our Top Picks among green tea products.

Clinical Update

1/27/2024

Green Tea Interaction With Medicine

Drinking green tea may significantly affect blood levels of a common beta-blocker, as well as statins, blood-thinners, and thyroid medication. Be aware of these interactions. See the Concerns and Cautions section of our Green Tea Review.

Recalls & Warnings

November 21, 2014

Seller of Diabetes, Prostate Supplements and More Warned for Manufacturing Violations, Drug Claims

On October 7, 2014, the FDA issued a warning letter to dietary supplement distributor Windmill Health Products, LLC, following a facility inspection which found the company's products, including Nutri-Betic caplets, Vita-betic caplets, ProstrinRx tablets, Polyflavanol capsules, and Glucoflex Joint ...

Recalls & Warnings

March 30, 2019

FDA Warns Seller of Reishi, Joint Supplements, Ginseng & More for Pesticides, Other Violations

On March 12, 2019, the FDA issued a warning letter to Yanqing "Michael" Li and Chang Su, owners of the website http://www.woohoonatural.

Recalls & Warnings

April 17, 2018

FDA Warns Seller of Echinacea, Iron, Aloe Supplements & More for Manufacturing Violations

On March 30, 2018, the FDA issued a warning letter to Ozark Country Herbs following a facility inspection which found a number of the company's products, including Echinacea-Goldenseal, Natural Iron, and Aloe-Vera Goldenseal Salve, to be adulterated because they were prepared, packed, or held under ...

Recalls & Warnings

August 29, 2017

FDA Warns Seller of Supplements for Allergies, Joint Pain, Bone Health, and More

On August 16, 2017, the FDA issued a warning letter to Total Nutrition, Inc.

Recalls & Warnings

June 10, 2017

Seller of Prostate, Immune Supplements & More Warned for Manufacturing Violations

On May 25, 2017 the FDA issued a warning letter to The Herbalist, Inc.

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

August 01, 2017

FDA Warns Seller of Acai, Garcinia & More for Drug Claims

On July 25, 2017, the FDA issued a warning letter to Absonutrix, following a review of the company's website, www.absonutrix.com, which found statements made about some of its products to be drug claims.

Recalls & Warnings

July 18, 2017

FDA Warns Seller of "Quick Slim with pure Hoodia Gardonii" and "Diabalance Herbal Blood Sugar Balance"

On July 11, 2017, the FDA issued a warning letter to Black Seed Herb, Inc.

Recalls & Warnings

July 11, 2017

FDA Warns Dr. Carolyn Dean of Drug Claims Made for Magnesium, Calcium & Other Mineral Supplements

On June 27, 2017, the FDA issued a Warning Letter to Dr. Carolyn Dean of New Capstone, Inc.

Recalls & Warnings

June 27, 2017

Seller of Alpha Lipoic Acid, Cinnamon Supplements and More Warned For Manufacturing Violations

On May 1, 2017 the FDA issued a warning letter to Nature's Vision, Inc.

Recalls & Warnings

February 28, 2013

Maker of Liquid Omega-3 Supplements Warned For Manufacturing Violations

On February 20, 2013, the FDA issued a warning letter to Capco Custom Packaging Inc.

Recalls & Warnings

September 16, 2015

Herbal Extracts Recalled

On September 15, 2015, Iowa Select Herbs, LLC issued a recall of numerous herbal exacts following a permanent injunction which required the company to stop selling supplements.

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.

Recalls & Warnings

March 29, 2016

Maker of Bone Health, Prostate, Cholesterol Supplements and More Warned for Drug Claims

On March 17, 2016, the FDA issued a warning letter to Rx Vitamins, Inc., following a facility inspection which found the company's products, includingTestost-Rx, DB-7, The Bone Density Formula, NaturLo Cholesterol, ThyRx-7 and Arth-9 to be misbranded.

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

November 18, 2015

Seller of "Hangover" Supplement Warned for Manufacturing Violations & Drug Claims

On September 17, 2015, the FDA issued a warning letter to Life Support Development Ltd, following a facility inspection which found the company's product, including Life Support Hangover Relief to be adulterated because they prepared, packed, or held under conditions that violate ...

Recalls & Warnings

April 01, 2017

Maker of Prelief, Urinozinc Prostate Health Formula Warned for Manufacturing Violations

On March 16, 2017 the FDA issued a warning letter to DSE Healthcare Solutions, LLC, following a facility inspection which found the company's products, including Prelief and Urinozinc Prostate Health Formula to be adulterated because they were prepared, packed, or held under ...

Recalls & Warnings

February 07, 2017

Seller of Chinese Herbal Products for Prostate, Menopause and More Warned for Manufacturing Violations

On January 23, 2017, the FDA issued a warning letter to Herbal Sciences International, Inc.

Recalls & Warnings

September 14, 2016

Seller of Aloe, Prostate and Joint Supplements Warned for Manufacturing Violations

On April 8, 2016, the FDA issued a warning letter to Salud Natural Entrepreneurs, Inc.

Recalls & Warnings

September 07, 2016

Seller of Herbal Formulas for Cholesterol, Prostate & More Warned For Drug Claims

On July 29, 2016, the FDA issued a warning letter to Healing-Scents following a review of the company's website, which found statements made about its products, Heart Herbs, Cholesterol Regulation Herbs, Diabetes Regulation Herbs, Prostate Healer Herbs, High Blood Pressure Herbs, ...

Recalls & Warnings

August 13, 2016

Seller of Omega-3, Ginkgo, Vision Supplements & More Warned for Drug Claims

On July 22, 2016, the FDA issued a warning letter to Viva Nutraceuticals (J & E International Corporation) following a review of the company's website and promotional literature, which found statement made about its products, Eyestonia, Ginkgo Biloba 60mg, Golden Omega-3 Max, ...

Recalls & Warnings

December 29, 2015

Maker of Vitamin K, Vitamin A & More Warned for Manufacturing Violations, Drug Claims

On December 10 2015, the FDA issued a warning letter to Dherbs Health Emporium, Inc.

Recalls & Warnings

September 05, 2015

Maker of Multivitamin and Fish Oil Warned for Manufacturing Violations

On July 22, 2015, the FDA issued a warning letter to Westar Nutritional Corp. dba Viva Life Science, Inc.

Recalls & Warnings

August 23, 2015

Maker of Herbal Supplements Sold on eBay, Amazon and Other Websites Shut Down

On August 17, 2015, a federal court ordered a permanent injunction against dietary supplement company Iowa Select Herbs LLC for unlawfully manufacturing and distributing unapproved new drugs and misbranded drugs and adulterated and misbranded dietary supplements.

Recalls & Warnings

August 11, 2015

Company Ordered to Stop Making and Selling Supplements

On August 4, 2015, a federal court ordered a permanent injunction against dietary supplement company Atrium Inc., and two companies under the same ownerhship, Aspen Group Inc., Nutri-Pak of Wisconsin Inc.

Recalls & Warnings

July 02, 2015

Maker of Arthritis Supplement Warned for Manufacturing Violations, Drug Claims

On June 17, 2015, the FDA issued a warning letter to Desert Stream, Inc.

Recalls & Warnings

June 17, 2015

Maker of Joint Supplement Warned for Manufacturing Violations

On May 29, 2015, the FDA issued a warning letter to Total Health Advanced Nutrition, Inc.

Recalls & Warnings

September 26, 2015

Seller of Muscle Supplements and More Warned for Manufacturing Violations

On August 14, 2015, the FDA issued a warning letter to Chaotic Labz, Inc.

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.

Recalls & Warnings

May 23, 2015

Seller of Magnesium, Calcium, Silver and More Warned for Manufacturing Violations, Drug Claims

On May 8, 2015, the FDA issued a warning letter to Pick and Pay, Inc.

Recalls & Warnings

May 02, 2015

Maker of Garcinia, Joint Supplements and More Warned for Manufacturing Violations, Drug Claims

On March 25, 2015, the FDA issued a warning letter to JW Nutritional LLC, following a facility inspection which found the company's products, including  Vanish V2 Domestic, Mr.

Recalls & Warnings

March 10, 2015

Seller of Vision Supplements Warned for Manufacturing Violations, Drug Claims

On February 26, 2015, the FDA issued a warning letter to Biosyntrx, following a facility inspection which found the company's products, including BioTears Oral Gel Caps, ZoOmega-3 Concentrated Pharmaceutical-Grade Fish Oil, EpiCor A Nutrient-dense High Metabolite Immunogen, Sight C+ Mineral ...

Recalls & Warnings

February 28, 2015

Drugs Found in Male Enhancement Supplements

On December 11, 2014, the FDA issued a warning letter to Biogenix USA, LLC, following a facility inspection which found the company's sexual enhancement products, HAM, CE6 and SARMZ to contain undeclared drugs, as well as drugs which were listed on the label but are not permitted ...

Recalls & Warnings

February 24, 2015

Seller of Heart, Brain and Diabetes Supplements Warned for Drug Claims

On February 6, 2015, the FDA issued a warning letter to LCW, Inc.

Recalls & Warnings

March 11, 2002

Recall and Warning to Stop Use of Prostate Supplements "PC SPES" and "SPES"

Note: This posting was origially made on February 8, 2002. Additional information was added on March 11, 2002.

Recalls & Warnings

February 13, 2014

Seller of Iron, Prostate, Valerian and Other Supplements Warned For Multiple Violations and Drug Claims

On January 31, 2014, the FDA issued a warning letter to NatureAll-STF Holding, LLC, following a facility inspection which found the company's products, including Colostrum, Valerian-Plus, Wormwood, Black Walnut-Plus, Lung-Plus, Yucca-Plus (Arthro Plus), Iron Plus, MSM Plus, White Willow Plus, ...

Recalls & Warnings

May 03, 2013

Homeopathic Company Warned For Drug Claims and Improper Labeling

On March 12, 2013, the FDA issued a warning letter to Natural Medicine Associates, Inc.

Recalls & Warnings

February 10, 2015

Seller of "Natural" Cough Syrup Warned for Manufacturing Violations, Drug Claims

On January 21, 2015, the FDA issued a warning letter to Fragrance Manufacturing Incorporated, following a facility inspection which found the company's products, including Maty's All Natural Cough Syrup and Maty's All Natural Cough Syrup for Kids, to be adulterated because they ...

Recalls & Warnings

January 31, 2015

Maker of Soy and Zinc Warned for Manufacturing Violations

On December 18, 2014, the FDA issued a warning letter to PreMark Health Science, Inc.

Recalls & Warnings

January 27, 2015

Seller of Aloe, Sexual Enhancement Supplements and More Warned for Manufacturing Violations, Drug Claims

On January 8, 2015, the FDA issued a warning letter to Aloe Man, Inc., following a facility inspection which found the company's products, including The Aloe Man's Super Bright, Dr. Johnson's Maximum Desire, Dr. Johnson's Body Healer, and Dr.

Recalls & Warnings

January 23, 2015

Maker of Vitamin Drinks Warned for Manufacturing Violations

On January 7, 2015, the FDA issued a warning letter to NYSW Beverage Brands, Inc.

Recalls & Warnings

January 21, 2015

Supplement Maker Ordered to Stop Selling Products

On January 15, 2015, a federal judge ordered a permanent injunction against dietary supplement manufacturer Health One Pharmaceuticals, Inc. which requires the company to stop manufacturing and selling dietary supplements.

Recalls & Warnings

January 17, 2015

Supplement Maker Warned for Manufacturing Violations

On August 5, 2014, the FDA issued a warning letter to Engineering Nutrition, following a facility inspection which found the company's products, which were not named, to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for ...

Recalls & Warnings

January 17, 2015

Maker of Magnesium and Potassium Supplements Warned for Manufacturing Violations

On December 23, 2014, the FDA issued a warning letter to Nutri Spec, Inc.

Recalls & Warnings

December 30, 2014

Maker of Probiotic Supplement Warned for Manufacturing Violations

On December 18, 2014, the FDA issued a warning letter to Wellmill LLC, dba Vitamix, following a facility inspection which found the company's products, including Butcher's Broom powder and Lactobacillus acidophilus powder (used as ingredients in a finished product which was not named) to be ...

Recalls & Warnings

December 30, 2014

Maker of Aloe, Weight Loss Supplements and More Warned for Manufacturing Violations, Drug Claims

On December 17, 2014, the FDA issued a warning letter to Dandy Day Corporation, following a facility inspection which found the company's products, including Aloe Pearl, Alfalo, Aloespring, Crave Away, Original Supreme Energy, Ener "G," Can G, Flora G, Flora G Plus, and Garolic, to be adulterated ...

Recalls & Warnings

December 12, 2014

Seller of Omega-3 "Syrup" Warned for Manufacturing Violations and Drug Claims

On October 16, 2014, the FDA issued a warning letter to Mr.

Recalls & Warnings

March 21, 2013

Probiotic Recalled Due To Undeclared Soy

On March 20, 2013, New Chapter, Inc. issued a voluntary recall of one lot of its Probiotic Elderberry dietary supplement because it may contain undeclared soy.

News Release

May 20, 2003

Consumers advised to read labels carefully when selecting herbal supplements for prostate — Saw palmetto product review published online today

WHITE PLAINS, NY — May 20, 2003 — ConsumerLab.com reported today that only two-thirds of the saw palmetto supplements it recently evaluated contained ingredients similar to those known to work in clinical studies.

News Release

January 31, 2000

Quality of prostate supplements get mixed review in ConsumerLab.com study; Saw palmetto product review published online today.

WHITE PLAINS, NY, January 31, 2000 — Out of 27 major brands of dietary supplements purporting to contain saw palmetto for treating symptoms of prostate enlargement, only 17 appeared to have ingredients similar to those found in published clinical studies.

Recalls & Warnings

May 18, 2023

EarthLab, Inc. Warned for Promoting Green Tea, Curcumin, Elderberry & More to Treat Stroke, Cancer & Flu

On April 27, 2023, the FDA issued a warning letter to EarthLab, Inc., dba Wise Woman Herbals, following inspection of the company’s website which found statements about the company’s Green Tea Solid Extract, Curcuma Spp.

Recalls & Warnings

November 06, 2014

Seller of Prostate, Heart Supplements and More Warned for Drug Claims

On October 9, 2014, the FDA issued a warning letter to Health Research Laboratories, LLC/New World Health, following a review of the company's websites, which found statements made about AtheChel Advanced, Betarol, BioTherapex, Omega-3 Cardio Plus, RejuvaLifeRx, and Ultimate Health Formula to be ...

Recalls & Warnings

October 03, 2014

Seller of Green Tea, Prostate, Pain Supplements and More Warned for Manufacturing Violations and Drug Claims

On July 25, 2014, the FDA issued a warning letter to AMS Health Sciences, LLC following a facility inspection which found the company's products, including saba ACE, UROPOWER, UROSure, Digest-Eze, Shark Cartilage, Colloidal Silver, and Mobilite to be adulterated because they were prepared, packed, ...

Recalls & Warnings

December 12, 2014

Seller of B-12, Zinc, Echinacea and More Warned for Manufacturing Violations and Drug Claims

On November 14, 2014, the FDA issued a warning letter to Scientific Botanicals Company, Inc.

Recalls & Warnings

March 29, 2013

Prescription Drugs Found In Prostate and Sexual Enhancement Supplements

October 24, 2012 the FDA issued a warning letter to USA Far Ocean Group Inc./ Health & Beauty Group Inc. because a number of the company's dietary supplements were found to contain pharmaceutical drugs, or were promoted with statements that constitute drug claims.

Recalls & Warnings

February 24, 2015

Seller of Antioxidant Water, Energy Drops Warned for Manufacturing Violations and Drug Claims

On February 18, 2015, the FDA issued a warning letter to Better Health Lab, Inc.

Recalls & Warnings

March 10, 2015

Maker of Magnesium, Calcium, Zinc, B Vitamins and More Warned for Manufacturing Violations, Drug Claims

On January 8, 2015, the FDA issued a warning letter to Complete H2O Minerals, following a facility inspection which found the company's products, including Sulfur Concentrate, Copper, Extra Strength Copper, Extra Strength Magnesium, Extra Strength Zinc, Platinum, Gold, Indium, Molybdenum, ...

Recalls & Warnings

May 30, 2015

Seller of Omega-3, Probiotics & SuperFoods Warned for Manufacturing Violations, Drug Claims

On May 4, 2015, the FDA issued a warning letter to Dr. Dennis Black, LLC.

Recalls & Warnings

June 11, 2015

FDA Warns Maker of Fruit Energy Drinks for Drug Claims

On May 19, 2015, the FDA issued a warning letter to CK Management, Inc. following a facility inspection which found statements made on product labels and websites about Whole5, Fruit of the Spirit and ViaViente "whole food" fruit puree energy drinks to be drug claims.

Recalls & Warnings

June 26, 2015

Seller of CoQ10, Anxiety Supplements and More Warned for Manufacturing Violations, Drug Claims

On June 6, 2015, the FDA issued a warning letter to Country Doctor Herbals, following a facility inspection which found the company's products, including  Herbal Flu Be-Gone, Herbal Multi-Bac, Herbal Nervine, Herbal Pain-A-Way, Herbal Pancreas, Herbal Parasite Cleanse, Herbal Perfect ...

Recalls & Warnings

December 16, 2015

Maker of Red Yeast Rice, St. John's Wort, Valerian and More Warned for Manufacturing Violations, Drug Claims

On December 2, 2015, the FDA issued a warning letter to Nature's Health, LLC, following a facility inspection which found the company's product, including Ginkgo & Rhodiola, Blood Sugar Balance IV, Cinnamon Extract, Choles-Balance Red Yeast Extract, Lecithin, Milk Thistle Seed Extract, ...

Recalls & Warnings

November 07, 2015

Seller of "NaturalDoctor" Vitamin C, Echinacea and More Warned for Manufacturing Violations

On October 16, 2015, the FDA issued a warning letter Sound Healing Arts, PC, dba Grounds for Tea, LLC, following a facility inspection which found the company's products, including  NaturalDoctor Vitamins C & K3, NaturalDoctor Goldenseal & Echinacea Plus, NaturalDoctor Centella ...

Recalls & Warnings

February 06, 2023

Recalled Eye Drops Linked to Vision Loss and One Death

On February 2, 2023, Global Pharma Healthcare issued a nationwide recall of its Artificial Tears Lubricant Eye Drops due to potential contamination with bacteria that can cause serious infection, blindness, and death.

Recalls & Warnings

November 28, 2014

Seller of Herbal Extracts Warned for Manufacturing Violations, Drug Claims

On November 3, 2014, the FDA issued a warning letter to Avena Botanicals, Inc.

Recalls & Warnings

December 15, 2020

FDA Warns Seller of Evening Primrose Oil and Beta Glucan

On December 2, 2020, the FDA issued a warning letter to Smoky Mountain Naturals, LLC following a review of the company's website, which found statements made about the company's products Evening Primrose Oil and Beta Glucan to be drug claims.

Recalls & Warnings

October 29, 2019

Chinese Herbal Supplement May Raise PSA

Use of a Chinese herbal supplement appears to have significantly increased the PSA (prostate specific antigen) level in a man treated for prostate cancer, erroneously suggesting a recurrence of the cancer (Abel, J Am Osteopath Assoc 2019).

Recalls & Warnings

March 26, 2021

Nine Banned Stimulants Found in Workout, Weight Loss Supplements

Recent analysis of 17 brands of sports/energy and weight loss supplements sold in the U.S. found nine prohibited stimulants formulated into eight different combinations, and none of these combinations have been studied in people.

Recalls & Warnings

May 02, 2017

Seller of Amino Acid Supplements & More Warned for Manufacturing Violations

On April 20, 2017 the FDA issued a warning letter to Naturecom Inc.

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

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

February 10, 2018

Warning to D-Limonene, Vitamin C Seller

On January 31, 2018 the FDA issued a warning letter to Long Life Unlimited, LLC following a review of the company's website which found promotional statements and testimonials made about products including Balance 600, D-Limonene, Rapha Remedy, Rapha Remedy w/ p73 Wild Oregano, Vitamin C, ...

Recalls & Warnings

April 07, 2011

Prostate Drug Found in Prostate Supplement -- Recall Underway

On March 24, 2011 the U.S. FDA posted a voluntary recall notice for U-Prosta from USA Far Ocean Group, Inc.

Recalls & Warnings

November 09, 2010

Misleading Claims by "One a Day Men's" Products Result in $3.3 Million Settlement

On October 26, 2010, Attorneys General from California, Illinois and Oregon announced a $3.3 million dollar settlement with Bayer Healthcare over the company’s alleged misleading claims that its One A Day Men’s multivitamins reduced the risk of prostate cancer.

Recalls & Warnings

October 30, 2008

Possible Risk Rather than Benefit Found in Trial of Vitamin E and Selenium for Prostate Cancer

On October 27, 2008 the National Cancer Institute (NCI) announced that men in the Selenium and Vitamin E Cancer Prevention Trial (SELECT) are being told to stop taking their supplements.

Recalls & Warnings

September 27, 2010

FTC Charges Deceptive Advertising by POM Wonderful

On September 27, 2010, the U.S.

Recalls & Warnings

May 03, 2002

More Information on Recall of PC-SPES - Prostate Supplement

The FDA's May 1, 2002 Enforcement Report classified the recall of PC-SPES as a Class I recall. The recall was originally announced by its manufacturer in February with additional warnings from the FDA issued in March (see the 3/11/02 posting on ConsumerLab.

Recalls & Warnings

January 16, 2015

CVS Sued for Eye Health Supplement Claims

A class-action lawsuit has been filed against CVS for promoting the company's Advanced Eye Health supplement as comparable to the formula used in the large National Institutes of Health (NIH) eye disease study known as AREDS2, despite the fact that it does not contain the same ingredients.

Recalls & Warnings

November 20, 2013

Another Meth-Like Compound Discovered In Weight Loss Supplements

A "non-natural" amphetamine-like compound, identified as beta-methylphenethylamine, was discovered in nine supplements recently tested by FDA scientists.

Recalls & Warnings

August 06, 2016

Some Supplements May Cause or Exacerbate Heart Failure (Includes vitamin E and many herbs)

Taking certain supplements may be dangerous for people with heart failure, according to a statement from the American Heart Association (AHA) which was published in the journal Circulation (August 2, 2016). 

Recalls & Warnings

March 15, 2016

FDA Warns Sellers of Weight and Workout Supplements Containing Acacia Rigidula

On March 7, 2016, the FDA issued warning letters to five sellers of supplements which were labeled as containing Acacia rigidula, an ingredient which is not permitted in dietary supplements.

Recalls & Warnings

April 08, 2015

Does Your Weight Loss or Sports Supplement Contain Synthetic Amphetamine?

A study published on April 7, 2015, reported that among 21 weight loss, sports and cognitive enhancement supplements labeled as containing the plant extract Acacia rigidula, more than half were found to contain a synthetic, amphetamine-like compound called beta- methylphenylethylamine ...

Recalls & Warnings

October 24, 2012

FDA Seizes Many Supplements from New York Company Due To Drug Claims

On October 23, 2012, U.S. Marshalls, acting on behalf of the FDA, seized dietary supplements and unapproved drugs from Confidence, Inc., a supplement manufacturer in Port Washington, N.Y. The products included dietary supplements Dr.