(1) Supply sufficient calories and proteins. Due to the long-term chronic disease process, the body consumes a lot, and should supply sufficient calories to prevent continued weight loss. High protein and high calorie low-fat semi-liquid diet or soft meal can be supplied, with appropriate choice of food with low fat content and easy to digest. Hu Shanshan, Department of Physiotherapy, Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine (2) Regular meals at regular intervals. Choose soft and easily digestible food to ensure adequate nutrition without increasing the burden on the intestines. In cooking, try to make the food fine, minced, soft and rotten, to boil, braise, burn, steam and other methods are appropriate, avoid frying, deep-frying, stir-fry, etc., to reduce the amount of fat supply. Attention should be paid to the color, aroma, taste and type of food to find ways to increase the patient’s appetite. Four to five meals per day is appropriate. (3) Pay attention to electrolyte balance. Electrolyte supplementation is extremely important in severe diarrhea and can be supplemented intravenously in the early stage. Fresh fruit juice, oil-free broth, mushroom soup, etc. are given in the diet. Iron-deficient anemia can be fed with iron-rich foods, such as animal liver, etc., and oral iron supplements can be taken if necessary. (4) Take adequate vitamin supplements. In addition to food supplementation, supplement vitamin preparations if necessary. Combine with clinical symptoms and focus on supplementing the appropriate vitamins, such as vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, etc. (5) Abstain from alcohol and limit smoking and wheat gum-free diet.