After infection with COVID-19, appetite declines, how to do a good job of nutrition supplement? How to do a good job in nutrition during rehabilitation? The reporter interviewed Yu Kang, director of the Clinical Nutrition Department of Beijing Union Medical College Hospital. "Whether in the infection period or in the rehabilitation period, normal eating is always the first choice for infected people." Yu Kang said that if the appetite becomes poor after infection, and the food consumption decreases, especially by more than 1/3, it is recommended that conditional infected people choose additional enteral nutrition on the basis of being able to eat. Nowadays, formula foods for special medical purposes, including oral enteral nutrition preparations, can be obtained in hospitals, and can be selected and supplemented under the guidance of professional nutritionists. For the elderly, people with obvious malnutrition before infection, long-term low weight or vegetarians and other special groups, strive to supplement enteral nutrition on the basis of eating a good meal; For patients with diabetes, hyperlipidemia and hypertension, the total nutrients and total calories need to be adjusted and treated together. Nutrition management should continue after "Yangkang". Yu Kang said that reasonable nutrition can accelerate recovery and improve quality of life. For those who can eat normally, "Yangkang" can follow the basic principles of the "Dietary Guidelines for Chinese Residents (2022)" in the future: try to keep the food diversified and the table more colorful; Maintain good eating habits, such as regular and quantitative meals three times a day; Ensure the intake of several important nutrients or foods, including but not limited to high-quality protein, etc., and match meat and vegetables three times a day to ensure that there are vegetables and fruits in the meals; Keep adequate drinking water, and drink water in small amount, many times and regularly. "The 'Yang Kang' should not be taken too quickly, but should follow the principle of" from less to more, and step by step. "Yu Kang said that the recovery of many organs after the 'Yang Kang' still needs a certain time, and it may be counterproductive to take too much, too much, too much tonic, or overeating. The Food Department of the National Health and Health Commission has specially organized national clinical, nutrition and traditional Chinese medicine experts to collectively prepare a four-stage diet plan around the rehabilitation period, which is of practical value and scientific reference value for the public to refer to for fatigue, shortness of breath, loss of smell and taste, etc. Protein supplementation plays an important role in promoting rehabilitation. Yu Kang believes that we should grasp the amount of protein supplement. Under healthy conditions, adults need 1 gram of protein per kilogram of body weight, the elderly may increase to 1.2 grams, and for infected people, it should increase to 1.2-1.5 grams in the rehabilitation period. Increase the intake of high-quality protein, such as protein in milk, eggs, lean meat and aquatic products. If the amount of food consumed is less than that before infection, protein supplements can be selected on the basis of eating. The protein supplement should be evenly distributed in the morning, middle and evening meals. It should be noted that protein-rich foods are often animal foods. It is better to choose lean meat to avoid excessive fat intake while increasing protein intake. Basic patients who are sensitive to protein intake and have renal function problems should be supplemented with protein under the guidance of professional doctors, and should not be blindly and excessively supplemented. (Outlook New Era)