In the early post-operative period, if necessary, nutrition can be supplied by special means, such as intravenous high nutrition. After the recovery of gastrointestinal function, clear liquid or liquid food can be given first, gradually transitioning to semi-liquid food, and then after a period of time, transitioning to soft or regular meals in sequence, in order to give the patient a large amount of protein and vitamins. Although no special attention is needed in the diet, too much or too little iodine intake is not recommended. However, in order to promote early recovery or to receive other treatments as soon as possible, postoperative patients are in principle given nutritious diets high in protein, calories and vitamins, such as beef, lamb and lean pork, chicken, fish, shrimp, eggs, ribs and soy products; kelp and nori for iodine supplementation; more milk, lotus root powder and fresh fruit juice, as well as more fresh vegetables and fruits; less oily, spicy and fried foods; more milk, lotus root powder and Fresh fruit juices, as well as eating more fresh vegetables and fruits; avoid stimulating foods such as strong tea, coffee and tobacco and alcohol.