Lunch: steamed stuffed bun (50g eggs, 50g cheese, 50g white vegetables100g celery100g flour100g), soup (50g tomatoes, 50g cucumbers, and 0g starch10g). Meal addition: make a small bowl of lotus root starch 1 (lotus root starch 30g, sugar 10g) and 2 vegetable biscuits (flour 20g). Dinner: 50 grams of rice porridge (50 grams of rice), steamed bread (50 grams of flour), mixed tofu (North tofu100g), and steamed garlic mixed with tomato sauce (eggplant100g). Meal: Sweet milk (fresh milk 250g, sugar 5g), cake 50g, 10g cooking oil, salt 6g. Generally, postoperative patients with rectal cancer should eat more foods rich in potassium, such as apples, oranges, corn, fish, lean meat, etc., eat more fresh vegetables and fruits containing various vitamins, and foods rich in cellulose, such as asparagus, cabbage, radish, etc., and should not eat more greasy things, nor should they eat greasy food.