Drinking soup before meals can moisten the mucous membrane of the digestive tract, eliminate the cold in the stomach, and facilitate the control of diet, etc. First, it can moisten the dry throat and esophagus, and for eating dry, hard and spicy food, drinking soup can avoid scratching the oral esophageal mucosa, which has a protective effect on the gastrointestinal tract mucosa. Second, hot soup can promote the timely discharge of cold gas in the stomach, but also mobilize the gastrointestinal tract digestive function. Third, soup before meals can increase the sense of satiety to a certain extent, so that food intake has some control, which is conducive to weight control. Fourth, the soup temperature should be controlled, not to drink too high temperature soup porridge food, or too spicy and stimulating soup porridge, the oral esophageal mucosa easy to cause burns, for the gastrointestinal ulcer disease is also not suitable, soup smell should be calm, should not be particularly odor, odor too much affect appetite.