Therefore, before chemotherapy, it is necessary to supplement nutrition, enhance physical fitness and take more protein; To tonify qi and blood, eat more foods that invigorate the spleen and kidney. Such as: rice, millet, corn, coix seed, oat, yam, lotus seed, hawthorn, soybean, sweet potato, red date, spinach, cabbage, lentil, pumpkin, carrot, mushroom, Flammulina velutipes, milk, lean meat, Gordon Euryale seed, ginseng, Polygonatum odoratum, Atractylodes macrocephala, bean products and fish. Not suitable for eating: mung bean, bitter gourd, water chestnut, persimmon, mint, cold drink, raw and cold fruits and vegetables, etc. You can also take selenium-enriched malt powder before and after chemotherapy to supplement selenium, improve the immunity of patients, and help alleviate the chemotherapy reaction, so as to better carry out chemotherapy.