I. The purpose of dietary treatment is to prevent and correct the imbalance of water and electrolyte balance; supply sufficient nutrition and improve the nutritional status. Avoid mechanical and chemical stimulation, so that the intestinal tract can get proper rest, which is conducive to the early recovery of the disease. Second, the principles of dietary treatment (a) acute diarrhea dietary treatment 1, the acute period of fasting: acute water diarrhea period requires temporary fasting, so that the intestine completely rest. If necessary, intravenous fluids to prevent excessive water loss and dehydration. 2, light liquid diet: without fasting, it is appropriate to give a light liquid diet at the beginning of the disease. Such as protein water, fruit juice, rice soup, thin noodle soup, etc., mainly salty. Early forbidden milk, sucrose and other gas-producing fluid diet. Some patients do not adapt to milk, often aggravate diarrhea after taking milk. 3, adjust the diet according to the condition: the number of bowel movements is reduced, and after the symptoms are relieved, change to low-fat liquid diet, or low-fat, less residue, soft and easy to digest semi-liquid diet, such as rice porridge, lotus root powder, rotten noodles, noodles, etc. 4, diet choice: After the basic cessation of diarrhea, you can supply low-fat, less residue semi-liquid diet or soft food. Small and frequent meals to facilitate digestion; such as noodles, porridge, steamed buns, rotten rice, lean mashed meat, etc.. Still should be appropriate to limit the crude fiber containing vegetables and fruits, etc., and later gradually transition to a universal diet. 5, vitamin supplementation: pay attention to vitamin B complex and vitamin C supplementation, such as fresh orange juice, fruit juice, tomato juice, vegetable soup, etc. 6, dietary contraindications: prohibit alcohol, avoid fatty meat, hard and coarse fiber vegetables, cold fruits and vegetables, fatty snacks and cold drinks, etc. (B) chronic diarrhea diet treatment 1, low-fat diet with less residue: about 40g of fat per day, too much is not easy to digest and increase the burden on the gastrointestinal tract, stimulating gastrointestinal motility aggravate diarrhea. Therefore, vegetable oil should also be limited, and pay attention to the cooking method, to steam, boil, blanch, braise, burn, etc., prohibit oil frying, stir-frying, slippery, etc.. Available foods are lean meat, chicken, shrimp, fish, soy products, etc. Pay attention to less slag, coarse fiber food can stimulate intestinal peristalsis, so that diarrhea aggravated, when the number of diarrhea is better to temporarily do not eat or eat as little as possible vegetables and fruits, can give fresh juice, tomato juice to supplement vitamins; less slag diet can reduce intestinal peristalsis, reduce diarrhea, so it is appropriate to eat fine noodles, porridge, rotten rice. 2, high protein and high caloric energy: chronic diarrhea is long and often recurrent, affecting the digestion and absorption of food and causing the consumption of stored caloric energy in the body. In order to improve the nutritional status, a high-protein, high-calorie diet should be given, and gradually increase the amount of methods, such as increasing too quickly, nutrients can not be completely absorbed, but may increase the burden on the gastrointestinal tract. Can supply protein lOOg / d or so, caloric energy 10.46 ~ 12,55MJ (2500 ~ 3000kcal). 3, forbidden food: such as coarse grains, raw and cold fruits and vegetables, cold mix, leeks, celery, squash, etc. containing crude fiber; hard and indigestible meat such as ham, sausage, cured meat, etc.; stimulating foods such as chili, spirits, mustard, chili powder, and fatty meat, crispy snacks and other high-fat foods.