The impact of nutrition in the promotion or prevention of prostate cancer has been evaluated for decades. Fat and soy intake, different vitamins, and the trace metal selenium have been previously studied. In this comprehensive review, the authors discuss the current knowledge regarding these nutritional agents. Dalu A, Haskell JF, Coward L, et al. Asian men have a low incidence of prostate cancer.
Asian diet is rich in soy.
The phytoestrogen genistein, a component of soy, has been implicated as the reason for this decreased incidence. The authors demonstrate that genistein inhibits tyrosine-phosphorylated proteins in a rat model. Bova GS, Partin AW, Isaacs SD, et al. J Urol . The former defines men with prostate cancer who have a father or at least one brother with prostate cancer.