Research on preventive treatments for prostate cancers:
Dietary supplements
Vitamin E
Selenium
Finasteride - a research-level possibly preventive drug.
Healthy diet - unclear but may have some preventive benefit.
Research on prevention of recurrence of prostate cancer:
Finasteride
Flutamide
LH-RH agonists
Diet changes - low-fat with high-soy and fruits/vegetables diet
Prostate cancer prevention: What you can do Mayo ClinicProstate cancer prevention: What you can do
You may help avoid prostate cancer by exercising and eating a low-fat diet rich in fruits, vegetables and fish. Maintaining a healthy weight can also help
http://www.mayoclinic.com/health/prostate-cancer-p...