Patients with renal cancer often have serious toxic reactions during chemotherapy, such as digestive tract reaction, blood routine and abnormal liver and kidney function, which bring great pain to patients and even affect the normal progress of chemotherapy. In addition to the necessary drug prevention, diet therapy is a very important aspect in clinic. The following experts will classify and list the diet conditioning and methods of toxic reactions of chemotherapy for you. (1) Diet conditioning chemotherapy for renal cell carcinoma with decreased hemogram can cause poor bone marrow regeneration, especially leukopenia. In order to effectively prevent the decline of hemogram, patients should supplement a high-protein diet during chemotherapy, such as milk, soybeans, lean meat, pig's trotters, sea cucumbers, fish, animal liver, red dates, peanuts, walnuts, auricularia auricula, carrots and red beans. Rubber peptones boiled by river crabs, snakehead, beef and animals, such as donkey hide gelatin (donkey hide gelatin) and pig skin gelatin (pig skin peptone), are also helpful to improve white blood cells. Chinese medicine attaches great importance to nourishing viscera, so it can also increase the bone marrow of animals during chemotherapy, such as the bone marrow of cattle, pigs and pigs, or a diet made of chicken blood, duck blood, goose blood and pig blood. At the same time, you can also eat more five black foods, such as black sesame, black rice, black beans and black dates. Chinese medicine believes that "black can enter the kidney", and five black foods can tonify the kidney and fill the marrow, which is helpful to improve the hemogram. (2) Dietary regulation of digestive tract toxic reaction Chemotherapy for renal cell carcinoma can cause oral mucositis, which is manifested as mucosal congestion, edema, ulcer and pain. At this time, you should keep your mouth clean, brush your teeth after meals, and supplement high-nutrient liquids or liquid foods, such as lotus seed soup, snow ear soup, milk, soybean milk and crucian carp soup. Avoid overheating, acidity and irritating diet when eating. Acute inflammation is delicious, quickly contains ice, and reduces inflammation exudation. If there is ulcer, 0. 1 g ground vitamin C can be added to 20 ml of honey and taken orally, 2-4 times a day. Chemotherapy damages gastrointestinal mucosa, which may lead to nausea, vomiting, upper abdominal pain and anorexia. At this time, you can eat something appetizing, such as hawthorn, lentils, yam, white radish, mushrooms and so on. At the same time, eat less and eat more meals to avoid satiety. Chew slowly, don't lie on your back after a meal 1 hour, you can eat it spread out, and don't drink water before chemotherapy 1 hour. If you feel sick and vomit while eating, you can take 3~5 ml of fresh ginger juice orally. (3) Diet conditioning and prevention of liver and kidney injury Some chemotherapy drugs can cause liver injury and increase transaminase. At this time, you should eat more mushroom foods such as bitter gourd, mung bean sprouts, tea, mushrooms, fungus and Hericium erinaceus, eat more fruits rich in vitamins, such as kiwi fruit, peaches, apples and grapes, and drink more green tea, oolong tea and honey water. If the liver function is seriously damaged, you can stew crucian carp soup with 20 grams of Schisandra chinensis and 20 grams of Lycium barbarum. Some chemotherapy drugs can also cause kidney damage, such as cisplatin. Drink more water and eat more fresh fruits and vegetables (alkaline food) when using such drugs in clinic. When renal function is damaged, it is necessary to limit the intake of protein, eat less salt when edema occurs, eat more animal kidneys, mullet, spinach and amaranth, and eat more foods rich in water and having diuretic effects, such as watermelon, cucumber, wax gourd and loofah.