At present, although the living conditions are better, but it seems that the number of patients suffering from cancer is also more and more every year, why is this? In fact, cancer and daily life diet has a great relationship, experts suggest that plant-based, animal-based complementary cancer prevention health recipes include, daily 300 grams of cereals (one-third of which is legumes, one-third of which is flour); 500 grams of vegetables, of which there must be 300 grams of leafy greens; 200 grams of animal foods, such as fish, poultry, eggs, lean meat; 250 grams of milk; 50 grams of soybean products. Soy products. In addition, the available dietary therapy appropriate supplement antioxidant nutrients, such as VC, carotene, eat more seeds containing VE, plant active substances, crustaceans and Dauphin tea, Huangtong class of hawthorn, goji berries, ginkgo biloba, soybeans, fungi, such as Ganoderma lucidum, etc. Exchange can enhance immunity and prevent cancer. Pickled food: dimethyl nitrite produced by salted fish can be converted into carcinogenic dimethyl amine nitrite in the body. Salted eggs and salted vegetables also contain carcinogenic substances and should be eaten as little as possible. Barbecue food: roast beef, roast duck, roast lamb, roast goose, roast suckling pig, roast lamb kebabs, etc., should not be eaten because they contain strong carcinogens. Smoked food: smoked meat, smoked liver, smoked fish, smoked eggs, smoked dried tofu and other carcinogens containing benzo(a)pyrene, easy to eat esophageal cancer and stomach cancer. Deep-fried food: after frying and scorching, it produces carcinogenic polycyclic aromatic hydrocarbons (PAHs). When coffee is burnt, benzopyrene will increase 20 times. Pancakes, stinky tofu, fried taro horn, doughnuts, etc., because most of them use oil that has been repeated many times, carcinogens will be produced at high temperatures. Moldy substances: rice, wheat, beans, corn, peanuts and other foods are susceptible to moisture and mold, contaminated by mold will produce carcinogenic toxic herbs – aflatoxin. Overnight cooked cabbage and sauerkraut: will produce nitrite, in the body will be converted to amine nitrite carcinogenic substances. Repeatedly boiled water: repeatedly boiled water containing nitrite, into the human body to generate carcinogenic amine nitrite.