There is a big difference between drinking before meals and after meals: the time of drinking soup is very particular, as the saying goes, "drinking soup before meals is slim and healthy;" It makes sense to drink soup after meals. The more you drink, the fatter you get. Drink a few mouthfuls of soup before meals to lubricate the mouth and esophagus, which can prevent dry and hard food from stimulating the digestive tract mucosa, which is beneficial to food dilution and stirring and promote digestion and absorption. Most importantly, drinking soup before meals can make the food in the stomach fully close to the stomach wall, enhance the feeling of fullness, thus inhibiting the feeding center and reducing people's appetite.