A just-published research study by Urological Sciences Research Foundation may help explain a quandary that has perplexed medical scientists for decades: why is prostate cancer so much more common in the West than in Asia?
Diet has long been chief suspect for the difference. The new study compared dietary influences on prostate tissues of Japanese men who spent their life in Japan versus other Japanese men who spent their life in the United States. The Western diet, relatively rich in animal fat and poor in soy, was found to exert cancer-causing influences that could be traced directly into prostate tissues.