There is no set or proven way to prevent prostate cancer. However, you can reduce the risk of prostate cancer by choosing healthy options like eating a clean diet and having a consistent workout routine. Doctors have recommended that men who are at risk of developing prostate cancer make life choices that will benefit their health. For those who are at high risk of developing prostate cancer, you should discuss the prevention techniques with your doctor so that they can offer some medication and better options for risk reduction as well.