Patients with malignant tumors have poor tolerance to chemotherapy, and side effects such as nausea and vomiting further reduce chemotherapy compliance. Patients with radiotherapy and chemotherapy should have at least 10,460 to 12,552 kJ of energy per day and no less than 100 grams of protein. If the gastrointestinal adaptation is good, enteral nutrition should be gradually increased and the amount of parenteral nutrition should be reduced. Patients who take oral food should pay attention to the following points in their diet:

(1) Thick liquid or semi-liquid food that is light and less oily

Fresh vegetables and fruits are rich in vitamins and minerals, especially It is vitamin C that has antioxidant effects. It is advisable to choose more vegetables and fruits such as cabbage, cauliflower, radish, carrot, bitter greens, onion, tomato, bitter melon, celery, garlic, ginger, etc., as well as figs, dates, citrus, pickled plums, longans, etc. During gastric cancer chemotherapy, you should eat more fresh grapes to reduce the side effects of chemotherapy drugs.

(2) Choose more seafood, whole grains, fungi, milk, etc.

Usually choose sardines, sharks, abalone, sea cucumbers, fish oil and other seafood; coarse flour, corn , millet, oatmeal, buckwheat flakes, black rice and other grains; mushrooms, mushrooms, white fungus, fungus, milk, yogurt and daily indispensable water, which play an important role in preventing gastrointestinal tumors.

(3) Maintain a good dietary psychology

Eat a balanced diet. Do not eat too fast. Food should not be too hot, too hard, or too irritating. Eat in moderation and avoid hunger. Eat in moderation and avoid overeating and irregular eating. Stay optimistic and adjust your meal mentality.

(4) Avoid unhealthy food

Do not eat moldy food or drink alcohol, as they may induce digestive tract tumors, so you should try to stay away from them. Eat less pickled, smoked, fried and grilled foods, as well as foods rich in nitrates and nitrites, such as salted fish, sauerkraut, sausages, barbecue, etc. Don't drink too much and drink less alcoholic beverages.

(5) Appropriately reduce dietary fat

Restrict the intake of saturated fatty acids. Dietary fats can promote the growth of cancer cells and can also cause early mutations in normal cells, thereby causing evolve into tumors. High-fat diets are particularly linked to colon and rectal cancer.

(6) The diet should be rich in glutamine

Glutamine can stimulate the function of B cells and T cells, improve the body's immunity, induce tumor apoptosis, and stimulate the small intestinal epithelium. Glutamine intake improves liver function.