Patients with leukemia M3 must not eat unclean food, and their diet should minimize the intake of spicy and stimulating foods, such as chili peppers and peppercorns, etc., and they can consume high-quality protein foods, such as eggs and milk, as appropriate. 1. Due to the existence of granulocytopenia and lack of leukemia M3 patients are prone to infection, so must not eat unclean food to avoid infection. 2. The gastrointestinal function of leukemia M3 patients is weak, so if they consume spicy and stimulating foods, such as chili peppers, peppercorns, seafood, fennel, barbecue and so on, it may cause some stimulation to the gastrointestinal tract. Especially after receiving chemotherapy, patients will experience nausea and vomiting, decreased appetite, abdominal discomfort and other symptoms, at this time to consume spicy and stimulating food will aggravate the discomfort. 3. Patients with leukemia M3 consume a lot of calories, so they can consume high-quality protein foods to supplement their diet, such as eggs, milk, black fish, beef, and so on. Patients with leukemia M3 should maintain a diversified diet, with the principle of eating less and more meals. If gastrointestinal discomfort occurs after eating, they should go to the hospital for checkups and cooperate with the doctor for treatment to avoid delaying their condition.