Chemotherapy is an important means of tumor treatment, but it is often accompanied by a series of gastrointestinal side effects, such as loss of appetite, nausea, vomiting, abdominal distension, diarrhea, etc., which often make tumor patients talk about “chemotherapy”. Reasonable diet can help patients improve their nutritional status, reduce side effects of drugs, and improve the tolerance and efficacy of chemotherapy. First of all, the first point of the blackboard! Not all patients undergoing chemotherapy will experience serious side effects, the severity of the reaction is closely related to the physical condition, the type of disease, and the drug regimen. Of course, if you can eat, sleep, and be unaffected by chemotherapy, then you can click the little cross in the upper left corner to say goodbye; but if you’re not one of the “lucky ones”, then please read on. Try to make sure that you eat something before you start chemotherapy, and take advantage of the gap between treatment reactions and when you have a good appetite to eat more light and easy to digest food, to avoid prolonged fasting, most patients find that eating a light diet before chemotherapy will feel better, which can increase the tolerance of chemotherapy drugs. If the reaction is serious, you can ask your doctor to prescribe some symptomatic drugs, such as antiemetic, appetizing, antidiarrheal and so on. Loss of appetite Small, frequent meals of high-energy, high-protein foods such as cheese, eggs, snacks, or enteral nutrition preparations. Change the way of cooking to increase the color and flavor of food, e.g., steaming, broiling, stir-frying, chilling, etc., and do not have to limit yourself to various kinds of stews. Drink less soup before meals and focus on solid or semi-solid foods whenever possible. Eat with your family to improve the dining atmosphere and environment. Nausea and vomiting Eat light, easy-to-digest foods and avoid greasy or overly flavored foods. Eat small, frequent and slow meals, avoid overfilling or prolonged fasting. Avoid foods that are too hot or too scalded. Try foods that are closer to room temperature or colder. For diarrhea, eat low-fat, light foods and avoid excessive oils and fats. For severe diarrhea, eat small amounts of rice soup or rice paste. Replace electrolytes and lost water. Avoid foods that tend to aggravate diarrhea, such as milk and bananas. Bloating Avoid gas-producing, rough and indigestible foods, and drink less soup during eating. Exercise moderately and eat small and frequent meals. Constipation Increase intake of high-fiber foods, e.g. whole grains, fresh vegetables and fruits (with skin), nuts, etc. Eat at regular times of the day and increase the amount of water you drink. Drinking a glass of water or honey water with breakfast on an empty stomach will help with bowel movements. Increase activity as much as possible and massage your abdomen clockwise to speed up bowel movements.