Chemotherapy is the application of drugs to treat cancer, when the drugs enter the body tissues by the blood stream to kill specific cells, especially those that are rapidly increasing in value. This means that tumor cells are more affected by chemotherapy drugs and some normal cellular fluid of single human body will receive different degrees of damage. Generally speaking, the effect of chemotherapy on normal human tissues is temporary, because the tissues have the normal process of repair and healing, and the damaged part can be gradually restored after stopping the drug. Chemotherapy treatment diet regimen principle is high calorie, high protein, high vitamin. Fresh vegetables and fruits can provide more vitamins and should be consumed more often. The disease itself and chemotherapy treatment will cause a great depletion of body tissues, so eating right can preserve strength, repair tissues and increase resistance. The patient’s diet during chemotherapy: 1. Protein is an important ingredient for repairing body tissues, so you should consume sufficient amount of protein-rich foods, such as milk, dried fish, beans, etc. 2.Avoid greasy, too strong or spicy stimulating diet. 3, according to the ability to eat, choose the texture of the diet, such as: liquid diet, easier to eat than the general meal, if necessary, can give nutritional supplements. There are many kinds of nutritional products in the market, so it is recommended to consult a nutritionist before taking them. 4. Smaller and more frequent meals should be taken, and food should be diversified as much as possible so that more different nutrients can be taken in. High protein, high calorie snacks such as shakes, puddings, etc. can be used to increase food intake. 5, do not eat while drinking boiled water, lest water occupy the stomach and intestines, more can not eat. Techniques to increase calorie intake, such as cooking food is to add the right amount of cream or cheese, techniques to increase protein intake, such as drinking milk or nutritional supplements, bread and cookies can add peanut butter or cheese sandwiched into the food, etc. 6, forbidden to eat raw food such as: soy sauce, raw fish, lettuce salad, half-cooked beef, lamb. 7, more intake of fruits and vegetables, the whole category, to take food vitamins, to help intestinal peristalsis, it is recommended to consume more than five servings of fruits and vegetables daily. 8. Choose more iron-rich foods to supplement the anemia caused by the decrease of blood pigment due to chemotherapy, such as red meat and animal offal. If you have bloating, avoid gas-producing foods, such as peanuts, sweet potatoes, fried foods. During the treatment period, you should follow the instructions of your physician or dietitian to supplement proper nutrition and make dietary adjustments at any time, and do not use prescriptions arbitrarily, as this may lead to improper diet and malnutrition.