The risk of bladder cancer is associated with fat and cholesterol intake. Some studies suggest a low-fat, low-cholesterol diet to reduce the risk of bladder cancer. A recent study from Japan found that a diet rich in green vegetables or carrots reduced the risk of bladder cancer. Soy protein and garlic intake may also reduce this risk. Garlic has a direct killing effect on bladder cancer cells. This is due to the body’s natural defense mechanism to kill cancer cells being triggered. Some vitamins also have anti-cancer effects. In a study involving one million adult smokers, the risk of dying from bladder cancer was reduced in people who took vitamin E as a rule for more than ten years. This had a smaller effect in the non-smokers. However, smokers who consumed vitamin E still had a high risk of bladder cancer; therefore, quitting smoking is quite important! The risk of bladder cancer was not reduced in those who consumed vitamin C. Studying the effect of diet on any disease is difficult because it requires hundreds of patients to follow a strict recipe change for several years in a row. If you have ever tried a new diet structure, you can imagine how difficult it was for those volunteers. Therefore, the best advice is to use common sense and be highly vigilant about expensive drugs that are claimed to be particularly effective. Maintain a balanced diet structure that includes fruits, meats, breads, and vegetables, without excessive intake of any of them; quit smoking; and exercise regularly. The above points will make you healthier.