What if the Western-style diet lacks a nutrient that was present in the original diet that offered some protection against prostate cancer development?
The primary candidates in this theory are the isoflavones found in soy and the polyphenols found in green tea, two foods that are abundant in Asian-style diets but that play a far less prominent role in Western-style diets.
Plolyphenols and IsoflavorsPolyphenols and Isoflavones
Although the rate of prostate cancer development in Asian-born men is considerably lower than that seen in American-born men, the rates tend to equalize after Asian men
http://www.prostatecancerfoundation.org/site/c.itI...
