During chemotherapy, while killing tumor cells, chemotherapy drugs will inevitably cause certain damage to normal cells and produce corresponding toxic side effects, such as decreased immune function, leukopenia, gastrointestinal mucosal ulcers, hair loss, etc. A reasonable diet can prevent and reduce the weight loss and malnutrition brought by the treatment, and improve the tolerance of chemotherapy. Dietary precautions during radiotherapy: 1. For head tumors: it is advisable to nourish Yin and nourish brain, and to educate and calm the mind. In addition to the above foods, walnuts, chestnuts, mulberry, black sesame, pomegranate, mango, ginseng fruit, pineapple honey, red dates, sour dates, pig brain, kelp, green tea and coffee should be used. 2.Neck tumor patients: use more foods that clear heat and lower fire, nourish yin and produce fluid, such as watermelon, pear, orange, grapefruit, apple, lemon, lotus root, rhizome, bitter gourd, wild rice, cabbage, green tea, honey, carp, jellyfish, tamari, bean soup, etc. 3.People with chest tumor: use more foods that nourish Yin and moisten the lungs and relieve phlegm and cough, such as winter melon, watermelon, loofah, cucumber, orange, pear, batch loa, apricot, plum, lotus root, yam, carrot, yellow meal fish, etc. 4, abdominal tumor patients: can use plum, hawthorn, orange, citrus, chicken gizzard, goose blood, barley, fresh ginger and other foods that strengthen the spleen and stomach to nourish blood and replenish qi. 5.Genitourinary tumor patients: choose figs, watermelon, bitter melon, cucumber, coriander, pepper, fennel, placenta, milk, eggs, sunflower seeds and other foods that nourish the kidney and liver, nurture yin and clear heat. How should we arrange a reasonable nutritional diet during chemotherapy? 1, food should be as diverse as possible, eat more high-protein, multivitamin, low animal fat, easily digestible food, and fresh fruits and vegetables, do not eat stale or irritating things, do not eat carbonated beverages and other gas-producing food, less smoked, baked, pickled foam, fried, too salty food, staple food coarse and fine grains with to ensure nutritional balance, to prevent bloating, diarrhea and constipation. 2, in order to prevent chemotherapy-induced decline in white blood cells, platelets, etc., it is appropriate to eat more blood and meat, such as animal offal, egg yolk, lean meat, fish, eels, chicken, bone, dates, cinnamon, gum, etc.; at the same time can be combined with medicinal meals, such as ginseng, astragalus, angelica, red dates, peanuts, etc. 3, improve immune function, can eat mushrooms, mushrooms, monkey head mushrooms, wood ear and other foods. 4, increase appetite, prevention and control of vomiting, can be taken to change the recipe, change the cooking method, increase the color, aroma and taste of food; a small number of meals, eat some light and refreshing raw cold dishes; in the diet can be added some ginger to stop vomiting; can also be used to appetite and strengthen the spleen, such as hawthorn diced meat, astragalus, yam, radish, white lentils, mushrooms, Chen Pi, etc. 5, such as a decline in immune function, leukopenia, gastrointestinal mucosal ulcers, hair loss and other symptoms. It is appropriate to supplement high protein foods, such as milk, lean meat, fish, animal liver, red dates, adzuki beans, etc. River crab, eel, black fish, beef, etc. also help to raise white blood cells. Or take 30g of peanut rice, 30g of yam, 15g of wolfberry, 60g of glutinous rice cooked porridge food; can also be 6g of silver fungus (water hair), 15g of lily boiled with ice sugar 10-15g drink. 6.In order to reduce constipation symptoms in chemotherapy, you should eat more vitamin-rich vegetables, fruits and other foods that help to fight cancer, such as asparagus, kelp, seaweed, onion, garlic, mushroom, etc.