1, dietary principles (1) should be a small number of meals, regular ration, not only to ensure adequate nutrition, but also not to increase the gastrointestinal burden. (2) Food should be diversified to avoid partial diet. Diet to fine, soft, easy to digest, in order to protect the digestive tract mucosa. (3) Cooking methods should be mainly stewing, steaming, boiling, roasting, braising, and minimize the use of frying, deep-frying, smoking, pickling, raw and other methods. (4) It is appropriate to use the general diet, semi-liquid, liquid and other feeding methods according to the disease, do not hard to support the hard stuffing. (5) strictly prohibit smoking, alcohol, less consumption of pickles, salted fish and other salty food. 2, eat more food that can increase immune function, such as kiwi, figs, apples, sardines, honey, pigeon eggs, milk, pig liver, monkey head mushroom, abalone, sea cucumber, oyster, squid, snapper, yam, lentils, rice kernel, rhizome, goldenseal, shiitake mushrooms, mushrooms, etc. 3, food therapy prescription for stomach pain: (1) stewed pork belly: 30 grams of vine pear root, 30 grams of stone peach, pork belly 1. Stewed, seasoned with the amount, eat meat and drink soup. It is a wide range of medicine, non-Guangdong area can be 10 pieces of gold citrus instead of stone peach and vine pear root. (2) Carp with green onion, black bean and ginger sauce: clean carp, add 15 grams of green onion, 15 grams of black bean, 2-3 slices of ginger and steam together. Treatment of loss of appetite, wasting: (1) Coix seed porridge: 30 grams of coix seeds, 30 grams of ling. Decoct soup, take the juice and cook the porridge. (2) Fresh mushroom and chicken slices: fresh mushroom, loin and chicken slices. (3) Toad sand duck: Toad sand san (sand stuffed into the mouth of the toad slug filled, clay seal, calcined ash, remove the mud) 10 grams, 30 grams of Ficus sicca fruit, placed in the belly of the old duck cooked, eat. It is a famous ancient formula for noma. It can inhibit mesothelioma, gastric cancer, osteosarcoma, ovarian cancer, leukemia, liver cancer and other cancer cells, and also promote the function of white blood cells. Treatment of bleeding black stool: (1) peace in the Xing fish: fish paste (fish, nao fish, grass carp, rubber fish can be) 250 grams, yellow fish glance 100 grams, 250 grams of tofu, scallions 15 grams, add spices steamed. Yellow fish glance should be stewed first, mixed into the fish ear meat. The party has obvious effect of stopping bleeding, and can also enhance nutrition. (2) Marjoram head scrambled eggs: 150 grams of marjoram head, egg 1, add material scrambled food.