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Could low selenium be contributing to your low body temperature?

Could low selenium be contributing to your low body temperature?
Is low selenium keeping you from a normal body temperature?

A recent study was performed on 70 women with autoimmune thyroiditis (Hashimoto’s Thyroiditis) which causes elevated TPO antibodies.  36 patients were each given 200 mcg / day of selenium for 3 months and T4 to keep their TSH levels normal.  Then, tests showed that the TPO antibodies had dropped 40% in the patients that had taken the selenium, while the TPO antibodies increased by 10% in the 34 patients who had not.

Furthermore, 9 of the patients given selenium had complete resolution of their TPO antibodies and their thyroid nodules went away.  This is amazing information that many people don’t know or don’t mention.  It just goes to show how important selenium can be in thyroid health.

It’s easy to see why selenium is so important to thyroid health.  It is the center of a few important enzymes that have everything to do with thyroid health.  For one, selenium is at the heart of the family of enzymes (iodothyronine deiodinases) that convert T4 to T3 throughout the body.  When patients are selenium deficient it may affect their ability to convert T4 to T3 adequately to maintain a normal body temperature even when thyroid blood tests are normal.

Selenium is also at the center of glutathione peroxidase.  This important enzyme protects the thyroid cells from oxidative damage that can result from toxins and that can lead to autoimmune disease like Hashimoto’s.  It’s also important in “organifying” iodine from the diet so that it can be used to make thyroid hormone.  It’s been reported that giving selenium can increase glutathione peroxidase by 21%.

(Gartner R, Gasnier BC,Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations; J Clin Endocrinol Metab. 2002 Apr;87(4):1687-91.)

About the Author:

Denis Wilson, MD described Wilson 's Temperature Syndrome in 1988 after observing people with symptoms of low thyroid and low body temperature, yet who had normal blood tests. He found that by normalizing their temperatures with T3 (without T4) their symptoms often remained improved even after the treatment was discontinued. He was the first doctor to use sustained-release T3.


  1. David Hunt May 19, 2013 at 1:34 pm - Reply

    Thank you for the wonderful info….I fit into the selenium / thyroid picture….I am taking 2 pills daily of ThyroCare…is that enough or should I take more selenium as well….Keep up the great work !

    • Dr. Denis Wilson May 21, 2013 at 1:52 pm - Reply

      2 capsules of ThyroCare have 200 mcg of Selenium. I can’t tell you what you should or shouldn’t do (medical advice) but I can say that’s 286% of the recommended daily value.

      • David Hunt May 22, 2013 at 10:00 am - Reply

        Thank you !

  2. tina November 6, 2013 at 5:36 am - Reply

    what about parathryoid? I am always COLD and low vitamin D but my calcium has never beeb checked?

    • Dr. Denis Wilson November 13, 2013 at 7:52 am - Reply

      As you probably know, pretty much the only thing that the thyroid and parathyroid have in common is their location in the body (hence the similar names). Other than that, they have completely different functions. I’m not aware of the parathyroid affecting body temperature very much. However, PTH is a hormone secreted by the Parathyroid gland that does affect Calcium and activates Vitamin D.

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