To prevent prostate cancer well, you can start with both exercise and diet. I. Physical exercise Numerous studies have shown that obese people are more likely to develop prostate cancer, so it is recommended to increase physical exercise to reduce weight. In addition, when doing outdoor activities, sun exposure can also make the body synthesize more vitamin D by itself. 2. Diet A high-fat diet is an important risk factor for prostate cancer, with red meat (pork, etc.) being the most dangerous, while the fat from fish and dairy products is relatively less harmful. Intake of red meat products, especially cured meat products, should be minimized. Some studies have shown that vitamin D and vitamin E can reduce the risk of prostate cancer. Foods rich in vitamin D and vitamin E include fruits, vegetables, beans, eggs and fish, etc. The intake of such foods can be increased appropriately. When the level of selenium and zinc in the body decreases, the risk of prostate cancer will rise accordingly. Therefore, proper supplementation of selenium and zinc can prevent prostate cancer. Foods rich in these two elements include nuts, cereals, etc. In addition, drinking green tea can also reduce the occurrence of prostate cancer.