First, nutrition should be sufficient Cancer patients are generally weak, during chemotherapy to appropriately increase the intake of protein, sugar, eat less high-fat, high-cholesterol foods, especially to ensure protein intake, eat more lean pork, beef, chicken or fish, etc.; Avoid eating fried foods, eat less pickled foods, prohibit the consumption of stimulating condiments, as thin as possible, the oil, the dish can be appropriate to add salty, not only to stimulate the taste, increase appetite, but also to prevent hyponatremia caused by insufficient sodium intake. This can not only stimulate the sense of taste and increase appetite, but also prevent and control hyponatremia caused by insufficient sodium intake. Consume bright red potassium-rich vegetables to prevent and control bloating and constipation caused by slowing down of intestinal peristalsis. Diet is diversified, meat and vegetable matching, acid-base balance, pay attention to the color, aroma and taste of food. Anorexic patients can eat some hawthorn, radish, kumquat and other appetizing food to increase their appetite. Second, eat more food rich in anticancer ingredients 1, cabbage, cabbage, kale, etc. contains anticancer substances indole-3-methanol, can prevent the role of carcinogens in the body induced tumor cells, inhibit the growth of tumors. 2, garlic, onions, etc. contains allicin, can block the synthesis of nitrosamines, while containing vitamin C, vitamin A and other components, can play an anti-cancer role. 3, tofu, soy milk, soybean sprouts and other soy products are rich in phytoestrogens, which can competitively inhibit the role of estrogen in the body and play an anti-cancer effect. 4, asparagus contains histones, experiments have proved that it can effectively control the growth of cancer cells. In addition, kelp, seaweed, tomatoes and other foods are rich in anti-cancer ingredients, often eat for cancer patients have certain benefits. Eat some fresh fruits Fresh fruits such as watermelon, kiwi, apricots, apples, pears, strawberries, etc. are rich in vitamin C, vitamin B and other vitamins, which have certain anti-cancer effects. Jujube not only contains hawthorn acid and other anti-cancer ingredients, but also has therapeutic effect on the lowering of white blood cells and reduction of platelet caused by chemotherapy, so cancer patients can often eat jujube during chemotherapy.