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01.05.2013

Vitamin d3 and testosterone, inverted row exercise muscles worked - Within Minutes

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Objective A small randomized controlled trial suggested that vitamin D might increase the production of testosterone in men, which is supported by experimental studies in animals and a cross-sectional study showing positive associations between plasma 25-hydroxyvitamin D [25(OH)D] and testosterone and concordant seasonal variation of both biomarkers. Design and Measurements We investigated the cross-sectional association of plasma 25(OH)D levels and total and free testosterone measured by immunoassay in 1362 male participants of the Health Professionals Follow-up Study who were selected for a nested case–control study on prostate cancer using multivariate-adjusted linear and restricted cubic spline regression models.
Conclusion This study supports previously reported positive associations between vitamin D and testosterone although we did not observe parallel seasonal variation patterns. Supplementation with Vitamin D Does not Increase Serum Testosterone Levels in Healthy Males.


Unlike for 25(OH)D, we did not observe any seasonal variation of testosterone concentrations. Possible causality and direction of the vitamin D–testosterone association deserve further scientific investigation. In a cross-sectional study among 2299 men who were routinely referred for coronary angiography, positive associations between 25-hydroxy vitamin D [25(OH)D] and total testosterone levels were observed.[2] In the same study, 25(OH)D and total testosterone followed a similar seasonal pattern. There is biological support for a possible association between vitamin D and male reproductive hormones.





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