Both selenium and vitamin E are antioxidants found in seafood, some meats, fruits, vegetables, and grains. According to the National Cancer Institute, the study is needed because of the high incidence of prostate cancer, and the side effects often caused by treatment. Treatments include radical prostatectomy, which is complete removal of the gland. Radiation therapy is another option, but is used only if the cancer is confined to the prostate or surrounding tissue. It can cause the same complications, as well as acute inflammation of the bladder, rectum, and intestines.
Doctors often suggest that the condition be closely monitored, with no treatment.
This is because prostate cancer is usually slow to progress, and may not be life threatening since it most commonly occurs in men over 65. The American Cancer Society estimates that 31,900 men over the age of 50 will die of prostate cancer this year. Eight out of 10 diagnosed will be over 65. Twice as many African-American men develop the disease as do Caucasians, and it is most common in North America and northwestern Europe. Like other illnesses, such as cardiovascular disease and diabetes, researchers believe that a major factor in contracting prostate cancer is a high-fat diet.