Research - All about Testosterone

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Research - All about Testosterone

Postby Canuck Singh » Sat Jun 21, 2008 12:13 pm

Serum Testosterone influence by Diet - Protein suppresses SHBG

An interesting cross sectional study by researchers at University of Massachusetts Medical School in Worcester demonstrated that protein intake is a significant contributor to serum testosterone concentrations in men.

Analysis of over 1550 men aged 40-70 yrs demonstrated that serum concentrations of **** hormone-binding globulin (SHBG) levels are inversely related to protein intake. In mammals, such as humans, SHBG levels affect the biological activity of testosterone in males. As men age SHBG levels increase and this lowers the amount of circulating bioactive testosterone. Analysis of the data revealed that protein but not carbohydrate, fat or total caloric intake is a major determinant of SHBG concentrations.

The researchers concluded that diets low in protein may lead to elevated SHBG levels and decreased testosterone bioactivity in men. A decrease in bioavailable testosterone can mean a decline in sexual function and the ability to build muscle mass as well as contribute to the loss of bone density.

Ref Diet and **** hormone-binding globulin. J Clin Endocrinol Metab. 85(1):293-6, 2000.
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