Navigation Links
Buyer, Beware of Over-the-Counter Thyroid Supplements: Study
Date:11/4/2011

FRIDAY, Nov. 4 (HealthDay News) -- Over-the-counter "thyroid support" supplements commonly used for weight loss and to fight fatigue are mostly ineffective and may pose a health threat, a new study warns.

The supplements contain widely varying amounts of two kinds of thyroid hormones -- triiodothyronine (T3) and thyroxine (T4) -- apparently derived largely from chopped up animal thyroid glands, according to senior investigator Dr. Victor Bernet, an endocrinologist at the Mayo Clinic in Florida.

These two hormones are regulated by the U.S. Food and Drug Administration and intended for use only in prescription drugs because they can cause serious health problems, including increased heart rate, heart irregularities and palpitations, nervousness and diarrhea, he explained.

The researchers analyzed 10 commercially available OTC thyroid supplements and found that nine contained T3 and five of them would deliver 50 percent or more of the total amount of T3 produced by the body daily.

Four of the supplements contained T4, and some contained a dose of T4 that could be double an adult's daily requirement.

Only one supplement had no T3 or T4.

Bernet said that the supplements are ineffective for most people.

'"The amount of thyroid hormone a normal person would have to take to lose weight would be dangerously high and there is no evidence that use of thyroid hormone effectively treats fatigue when used in people without actual hypothyroidism," he said in a Mayo news release.

The study was slated for presentation at the recent annual meeting of the American Thyroid Association in Indian Wells, Calif.

The findings show the need for better monitoring of the ingredients in OTC thyroid support products and more patient education about these products' potential health risks, Bernet said.

Because this study was presented at a medical meeting, the data and conclusions should be viewed as preliminary until published in a peer-reviewed journal.

More information

The Hormone Foundation has more about thyroid disorders.

-- Robert Preidt

SOURCE: Mayo Clinic, news release, Oct. 27, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Buyer beware: Advertising may seduce your brain, UCLA researchers say
2. Beware of Second-Impact Syndrome After Concussions
3. Beware of Getting Caught in the Crossfire, Warns MediCare International
4. Beware the Gentle Man With Unique Knowledge: The Passion and Skill of a Rising Star
5. CWRU research examines over-the-counter drugs effect on chemos side effects
6. Many Consumers Dont Know Whats in Over-the-Counter Painkillers: Study
7. Instructions on over-the-counter medications for children are found to be confusing
8. Convenience drives US women to buy over-the-counter contraception in Mexico, study finds
9. Thyroid Surgery Linked to Improved Sleep Apnea Symptoms
10. Research involving thyroid hormone lays foundation for more targeted drug development
11. Antineoplastic agents associated with thyroid dysfunction
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Buyer, Beware of Over-the-Counter Thyroid Supplements: Study
(Date:1/17/2017)... ... 2017 , ... SunView Software’s Service Smart Technology has been selected as a ... , Each year, Pink Elephant recognizes a new product or service developed by an ... problem or opportunity. The award highlights original innovations that were released in 2016, either ...
(Date:1/17/2017)... ... January 17, 2017 , ... Etymotic Research will demonstrate ... Music Merchants (NAMM) winter trade show, Booth #2876, at the Anaheim Convention Center ... been the gold standard for high-definition, in-ear earphones. This classic earphone has been ...
(Date:1/17/2017)... CA (PRWEB) , ... January 17, 2017 , ... ... County, as well as Palm Desert, is opening a new office in San ... deep transcranial magnetic stimulation (dTMS) in Southern California, successfully treating individuals struggling with ...
(Date:1/17/2017)... ... January 17, 2017 , ... Medic-CE , ... and firefighting professionals, has released four new continuing education courses as part of ... live in an online classroom and meet the requirements of the National Continued ...
(Date:1/17/2017)... ... January 17, 2017 , ... ... will lecture to primary eye care practitioners on the latest breakthroughs in the ... 13th Semi-Annual Continuing Education Symposium, according to eye surgeon, Jeffrey Martin, MD, FACS, ...
Breaking Medicine News(10 mins):
(Date:1/17/2017)... 2017  In a letter to President-elect Donald ... outlines AARP,s priorities for Americans age 50 and ... to affordable health care coverage, and lowering the cost ... writes to President-elect Trump that "Our nearly 38 million ... you to protect their Medicare and Social Security benefits, ...
(Date:1/17/2017)...  In a preview of the upcoming Society of Critical ... Inc., developer of the NephroCheck Test, today highlighted events studying ... patients at risk of developing moderate to severe acute kidney ... the Hawaii Convention Center in ... AKI is one of the top 10 hospital ...
(Date:1/17/2017)... DUBLIN , Jan 17, 2017 Research and ... Diagnostics Companies Worldwide" report to their offering. ... This unique and comprehensive report, identifies and profiles ... are located right across the globe from the United States ... and China . Profile ...
Breaking Medicine Technology: