(1) Diversify food: A wide range of recipes can not only meet the various nutrients required by the body, but also inhibit harmful carcinogens. (2) Drinking alcoholic beverages must be in moderation: drinking a lot of alcohol is harmful to health, and cancers of the mouth, throat, esophagus and liver are related to excessive drinking. Those who drink a lot and smoke at the same time have a greater risk of cancer. (3) Avoid excessive cholesterol intake: A low-fat diet can reduce the risk of breast, prostate, colon and rectal cancers. (4) Eat foods with enough starch and fiber: You should eat more fruits, vegetables, dried beans, whole grains, beans and their products. To increase the intake of starch and fiber, which can reduce colon and rectal cancer. (5) Maintain a balanced nutrition and maintain ideal body weight. Avoid eating too much sugar.