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Soy and Mens Health
The Chinese and Japanese have eaten soy for over 3000 years. In the long history of both cultures there have been no stories, anecdotal or otherwise, of males having problems with their masculinity.
Soy is probably the most pure protein, with very high amounts of vitamins and minerals. Additionally, soy has no saturated fat, trans-fat, cholesterol, sugar, or carbs - a double win where health and nutrition are concerned.
About male estrogen: Males normally produce small amounts of estrogen as well as testosterone. Belly fat and/or too much alcohol further increase a man’s estrogen levels. But soy’s phytoestrogens (weak estrogen from plants) may help by occupying estrogen receptor sites in the male body and blocking their more powerful & potentially problematic human male estrogen, which has been associated with prostate cancer and other health issues.
From the medical Literature: Clin. Sci. 100 (6): 613-8. Mitchell JH, et al: There was no observable effect on endocrine measurements, testicular volume or semen parameters over the study period. This is the first study to examine the effects of a phytoestrogen supplement on reproductive health in males. We conclude that the phytoestrogen dose consumed had no effect on semen quality or secondary sexual characteristics.
Fertil Steril. 2009 Oct 9. [Epub ahead of print] Consumption of soy protein of low or high isoflavone content does not adversely affect semen quality [or reproductive anatomy or function] in a sample of healthy adult men.
J. Nutr. 133:2874-2878, September 2003 Zhang, X, et al Lower risk of coronary heart disease associated with soy consumption.
Mol Nutr Food Res. 2009 Feb;53(2):217-26. Lower risk of prostate cancer associated with soybean consumption.
http://www.dietaryfiberfood.com/phytoestrogen.php Phytoestrogens and food sources.
Soy may actually protect men from their own estrogen
See below...
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