1.Intake nutritious and diversified diet mainly with plant foods Choose various vegetables, fruits and legumes and other plant foods, but it does not mean to be vegetarian, you should make plant foods account for more than 2/3 of the total daily food. 2.To ensure sufficient protein intake Tumor is a kind of consuming disease, especially protein consumption is a lot, often eat lean pork, milk, eggs, poultry and other high quality protein food. If patients are averse to greasy meat, they can switch to protein-rich non-meat food such as bean food. 3, eat more vitamin-rich fresh vegetables and fruits such as rape, spinach, cabbage, tomatoes, hawthorn, kiwi, etc.. Vitamin C can protect the integrity of interstitial cell structure and block the production of nitrosamines and nitrosamides to prevent cancer; the main function of vitamin A is to maintain the normal structure of epithelial tissue, stimulate the body’s immune system and mobilize the body’s anti-cancer effect. 4.The use of plant staple foods rich in starch and protein should account for 60%-65% of the total energy, and the total energy provided by refined sugar should be controlled within 10%, and rough processed foods should be consumed as much as possible. 5, to avoid eating indigestible food should eat more boiled, stewed, steamed and other easily digestible food, less fried food. 6, do not eat sour (not including sugar and vinegar flavor) food, salt pickled, moldy, barbecued, smoked food and coloring, flavoring, strong alcohol, etc. 7.Eat more foods that are beneficial to the excretion and detoxification of toxins Some foods like mung beans, adzuki beans, winter melon, watermelon, cabbage, cauliflower, kale, etc. can promote the excretion of toxins or destroy the vitality of carcinogenic substances. 8.Eat foods rich in fiber such as celery, leek, etc., because fiber can accelerate the formation and excretion of feces, change the intestinal flora, and reduce the production and storage of carcinogenic substances in the stool. 9.Appropriate use of Chinese medicine and diet therapy The most suitable food Animal food: lean pork, beef, mutton, chicken, duck, pigeon meat, etc., yellow fish, eggs Seaweed: sea jelly, kelp, seaweed, sea cucumber, seaweed Legumes: all kinds of soybean products such as soy milk, tofu, vegetarian chicken Plant food: fresh dark green food and yellow and orange vegetables, eggplant Fruits: fresh fruits, nuts such as red dates, cinnamon, walnuts, etc. Food: all kinds of grains and their products Animal food: fatty animal and poultry meat, salt-cured meat, fish, smoked products, sausages, red sausages Legumes: dried beans Plant food: fresh pickled vegetables, not fresh vegetables Fruits: canned fruits or fruit-flavored drinks