Ensure adequate nutrition: 1. Increase protein appropriately, especially for patients shortly after surgery. Eat some meat such as chicken, fish and shrimp, and you can also eat energy-rich foods such as rice and potatoes to supplement calories. 2. Eat less fried and pickled foods, no acidic, salt-pickled, moldy or smoked foods, less overly sweet, hard and cold foods, and stay away from smoking and alcohol. Protect your spleen and stomach; 3. Eat fruits rich in vitamins, such as watermelon, kiwi, apple, etc. Eat more foods with anti-cancer ingredients: 1. cabbage, Chinese cabbage, kale, garlic, onion, etc. contain anti-cancer substances, which have certain effects on inhibiting the growth of cancer cells; 2. soy products such as tofu, soy milk, soy sprouts, etc., have studies that confirm their effects on reducing the risk of breast cancer; 3. asparagus contains histones, etc., which studies have shown to have the effect of controlling the growth of breast cancer cells; 4. red dates, barley, red beans, yams, etc. They have a therapeutic effect on chemotherapy-induced leukocyte reduction and thrombocytopenia, and can be eaten more often during chemotherapy. Eat breakfast early, 4 hours before chemotherapy, when the chemotherapy drug causes vomiting, the stomach has been basically emptied; 2. Eat less lunch, which can also reduce the vomiting after chemotherapy drug administration; 3. Eat dinner late, after chemotherapy, dinner can be eaten later, wait until the self-perception of nausea significantly reduced meal, can effectively replenish energy and strength.