It is an indisputable fact that the incidence of tumors is increasing with the accelerated pace of life, changes in dietary structure, and increased environmental pollution. Due to the increase in evidence-based medicine for tumors, many patients are no longer “incurable” after getting a tumor, but have more chemotherapy options to choose from. With the continuous development of medicine, the continuous improvement of chemotherapy drugs and the application of adjuvant drugs, the overall incidence of adverse effects in chemotherapy patients has been greatly reduced compared with the previous. But even so, digestive tract reactions are still relatively common in tumor patients during chemotherapy. In fact, as long as we pay a little attention, pay attention to the appropriate adjustment of dietary structure, diet, for reducing the digestive tract reaction of tumor chemotherapy patients, to ensure the smooth progress of chemotherapy, is of great help. Dietary advice for tumor patients during chemotherapy During chemotherapy, many tumor patients have mild or serious digestive tract reactions, such as nausea, vomiting, abdominal pain, diarrhea, or decreased appetite. For such patients, we suggest that they can choose soft diet, semi-liquid diet or liquid diet according to the severity of the reaction. In other words, for patients with severe reactions, they can choose a liquid diet, such as rice soup, soy milk, milk, thin lotus root powder, fruit juice, vegetable juice, meat juice, and so on. For patients with milder reactions, you can choose a soft diet, such as soft rice, steamed buns, buns, noodles and various kinds of porridge. However, it should be noted that meat should be minced and vegetables should be chopped finely. Eggs should be boiled and steamed as much as possible, avoid frying eggs in oil or putting too much oil in scrambled eggs. As for food fruits should be peeled, bananas, oranges, apples and pears can be eaten. As for those who are between light and heavy, they should choose a semi-liquid diet, such as thicker porridge, noodles, tofu brain, crushed vegetable leaves, minced meat, shredded chicken, shrimp and so on. In addition, it should be noted that when semi-liquid diet is carried out, small amount of meals should be eaten 5-6 times a day in order to reduce the burden of the patient’s digestive organs and adapt to the patient’s tolerance ability. Dietary advice for tumor patients in the intervals of chemotherapy In the intervals of chemotherapy, since the toxic and side effects of chemotherapy have already passed, the appetite often has returned to normal, so the diet usually has to choose ordinary diet. As for patients with other diseases such as hypertension and diabetes mellitus, they should follow the dietary principles of the original chronic diseases, such as low-salt and low-fat diet for hypertension patients and low-salt and low-fat diabetes mellitus diet for diabetes mellitus patients, etc. For tumor patients, their ordinary diet should be in accordance with the dietary principles of the original chronic diseases. For tumor patients, their common diet is slightly different from normal people, which is to better adjust the body quality, so that they can have a better body when entering the next cycle of chemotherapy, so as to be able to tolerate chemotherapy and ensure the smooth progress of treatment. Therefore, patients in the intermittent period of chemotherapy need to supplement sufficient protein, calories and multivitamins, and should add animal protein-rich foods, such as beef, eggs, fish, milk, etc., to their diet. More fresh fresh vegetables and fruits can be eaten. Limit fried foods, strong seasonings, and overly spicy foods. In addition, add 2-3 snacks between meals, such as cakes, bread, milk, soy milk, etc.