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Old Mon, Aug-19-02, 16:38
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Curr Opin Urol 2001 Sep;11(5):457-61

Fat reduction to prevent prostate cancer: waiting for more evidence?
Moyad MA.

Section of Urology, University of Michigan Medical Center, Ann Arbor, Michigan 48109-0330, USA. moyad~umich.edu

Complementary medicine has become an important area of interest for patients and researchers around the world. The utilization of some of these therapies by many individuals makes it imperative to understand whether they have any role in treatment of cancer or other diseases. Some of such therapies may play a role in the prevention of prostate cancer. Clinical trials are addressing this issue, and whether these products could also improve prognosis of prostate cancer. That dietary fat reduction may help to prevent prostate cancer is supported by numerous case-control studies reported over the past several decades, but recent prospective studies suggest that the impact of fat reduction in this regard may not be great. Clinicians should be careful not to suggest such a benefit until more research provides a better picture of the situation. Breast cancer is probably the best example of why more research into dietary changes for reduction in cancer risk is needed. Once believed to play a significant role, recent prospective studies suggest that dietary fat reduction may have little effect on breast cancer prevention, although some interesting insights have been gained with regard to the method of meat preparation and the influence of genetics. Fat reduction, together with soy products or other plant estrogen foods, may have a symbiotic relationship. Numerous healthy lifestyle changes incorporated and practiced at one time (healthy diet, attainment and maintenance of normal weight, soy consumption, among others) may hold some promise in the area of cancer prevention. In the meantime any healthy lifestyle or dietary change should be encouraged, because it may reduce the risk of cardiovascular disease, which is still the number one cause of mortality. It is also an important cause of morbidity and mortality in cancer patients. Regardless, complementary medicine should probably be discussed with any patient who is initiating or undergoing conventional treatment, because of the cardiovascular benefits and overall potential impact on all-cause mortality. Whether such therapies impact on prostate carcinoma remains to be determined through additional prospective investigations.
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