A fraction lower than 23 percent of free PSA is more likely to indicate cancer. There is a good deal of new research that suggests that prostate cancer can be influenced by diet . For example, in Japan there's a much lower incidence of prostate cancer than in the United States. And when it does occur, it tends to be much less aggressive. A recent study at Harvard Medical School showed men who eat at least 10 servings a week of tomato-based foods had a 21 percent to 35 percent lower risk of developing prostate cancer.
Tomatoes are rich in an antioxidant called lycopene, which is credited for the reduced risk.
Researchers put mice on low-fat diets and found prostate tumors in the rodents didn't grow very fast. When soy is fed to mice with prostate cancer, tumor growth slows or stops. You may want to aim for getting less than 15 percent of your calories from fat. In addition, I would eat soy products on a regular basis. I can't give you specific advice about the surgery - I would need to know a lot more about your particular case.