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New study suggests that vitamin D supplementation has no effect on testosterone levels

Posted on: January 12, 2015   by  Amber Tovey


New research published in the journal Clinical Endocrinology suggests that vitamin D supplementation in vitamin D deficient men does not raise testosterone levels. 

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4 Responses to New study suggests that vitamin D supplementation has no effect on testosterone levels

  1. Amber Tovey

    Hi IAW,

    It is always great to hear success stories with vitamin D! In djbinding’s case, he had low levels of vitamin D, low levels of testosterone, and sufficient vitamin D supplementation to achieve healthy levels. It is quite possible that they didn’t observe significant effects due to such low vitamin D dosage, and since the participants already had healthy levels of testosterone.

  2. Rogerio Luz Coelho

    I reached the same conclusions as this study… with 153 male athletes with median D 28 ng/L had no correlation with Testosterone (data yet unpublised).

    But the caveat is that we did not supplement them and the supplementation in this current article is ludicrious (600 – 1200).

    Hope to see if VERY insufficient males (below 20 ng/mL) AND testosterone deficient can get their testosterone back just by supplementing vit D … THAT would be a HUGE study, since recently the NIH said that testosterone replacement therapy is dangerous.

  3. Magic

    It is a shame that so much money is spent to prove that inexpensive remedys don’t work.

    I have said that neither my wife or I have had the flu or colds for at least ten years. That is about the time that I “found” this site.

    Exercise is another very inexpensive “treatment.” Athletes are bound to be more healthy in many ways.


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