1, a reasonable diet principles can eat more food: (1) high-quality animal protein; (2) rich in B vitamins and vitamin C food; (3) rich in fiber food, such as whole wheat bread, brown rice, coarse pasta and high-fiber cereal, which can reduce the occurrence of constipation, which can easily lead to abdominal infection. Foods that should be eaten sparingly: (1) Avoid foods high in phosphorus; (2) Limit salt intake to prevent fluid overload; (3) Limit the intake of sweets and fats. 2.Intake appropriate protein During peritoneal dialysis, about 5-15g of protein is lost every day, so the right amount of protein must be eaten every day to replenish the lost part, and more high-quality animal protein should be eaten, such as fish, lean meat, milk, eggs, etc., and less vegetable protein, such as beans and soy products, etc. 3, control the intake of carbohydrates (calories) Most of the carbohydrates in our food usually come from sugar and starch in staple foods or sweets, such as rice, bread, noodles, etc. The glucose in the dialysis solution of abdominal dialysis can also bring in calories, and these extra calories can make weight gain. If you are already overweight, try to avoid sugars, sweets, and foods that contain a lot of fat, such as cream, fatty meats, and whole milk. 4, limit the intake of phosphorus and potassium in food Phosphorus: elevated blood phosphorus can cause itchy skin and osteoporosis, which is very common in uremic patients, so you should eat less food containing high phosphorus on weekdays, such as dairy products (yogurt, milkshakes, pudding), soybeans and other beans, animal offal, carp, squid and shrimp, etc. Potassium: Elevated blood potassium can cause arrhythmia of the heartbeat, so it is necessary to eat less foods high in potassium, such as fresh fruits (bananas, oranges, grapefruit), vegetables (tomatoes, potato chips, mushrooms), fruit juices, beer and red wine. However, patients containing poor condition can be caused by insufficient intake of low blood potassium. If blood tests suggest low blood potassium, potassium intake should be supplemented or treated under the guidance of a doctor. 5. Correct cooking method In addition to the intake of various food components, the correct cooking method can also help to achieve the desired dietary treatment effect. (1) Reduce potassium content ① Soak green leafy vegetables in a large amount of water for more than half an hour, then pour off the water and put them in a large amount of boiling water for heating. (2) Root vegetables with high potassium content, such as potatoes, should be peeled first, cut into thin slices and soaked in water before cooking. ③ Recommend eating more melon soup, such as winter melon, loofah, etc. They contain less potassium than leafy green vegetable soup, and all soups cooked with vegetables contain potassium. ④ Canned fruits and vegetables are reduced in potassium content in the manufacturing and processing process, but attention should be paid to additives in the can. (2) Reduce sodium content ①Seasoning should be light, and use less high-sodium condiments such as salt, soy sauce, monosodium glutamate, oyster sauce and various ready-made sauces. ② Avoid using ingredients with high salt content, such as preserved vegetables, pickled vegetables and squash. ③Try to use more of the following low-sodium condiments, which can increase the deliciousness of the dishes. Such as pepper, vinegar, sugar, wine, five spice powder, pepper, star anise, coriander, peel, mustard, onion, ginger, garlic, lemon juice, lime juice, chili, etc. (3) Avoid thirst ① Avoid using pickled ingredients and high salt seasonings. (②Add lemon slices or mint leaves to drinks. ③Make some drinks into ice cubes and hold them in your mouth for better thirst quenching effect. ④Avoid drinking strong tea or strong coffee. (4) Cooking methods for diabetic patients ①You can use a limited amount of sugar or switch to sugar substitute for flavoring, but sugar substitute should not be cooked at high temperature because the sweetness will be reduced by heat. ② Avoid eating foods with high sugar content such as soft drinks, candies, sweet pastries and canned fruits (made of sweet water), etc. ③Eat starchy foods regularly as the main source of calories. ④Avoid foods with high cholesterol and cook with a small amount of vegetable oil. ⑤ Increase the amount of food rich in dietary fiber. 6. Recommended daily dietary structure (1) Food: 200-250g. (2) Vegetables and fruits: 300-400g of melons and fruits with low phosphorus and low potassium, such as winter melon, buddha melon, golden melon, cucumber, cabbage, mung bean sprouts, pears, apples, etc. (3) 1 bottle of milk or yogurt (200-300mL) (4) 1 egg (50g) (5) Fish or meat: 100-150g. (6) Soybeans or soy products: 40g of soybeans (equivalent to 100g of tofu), less for those with high blood phosphorus. (7) Seasoning: 25g of oil, 3g of salt, 25g of sugar. (8) Daily water intake = 500mL + previous day’s urine volume + previous day’s peritoneal dialysis net desaturated water volume (and ultrafiltration volume).