One: Drinking water before and after meals can cause indigestion.
Scientific research shows that it is best to drink water several times an hour before meals, and the amount of water to drink each time is less, ideally two or three hundred milliliters at a time. The water drunk on an empty stomach only stays in the stomach for a few minutes, and then quickly enters the small intestine, is absorbed into the blood, and can be replenished to the tissues and cells of the whole body in about an hour. However, if you drink water before meals, it will dilute the acidity of gastric juice and affect the secretion of digestive juice, which is not conducive to human digestion and absorption.
Two: the drinking water for eating is not suitable for drinking.
Many people feel very dry when eating, so drinking water while eating is harmful to human digestion and absorption. Because drinking water while eating will dilute gastric acid, so that the stomach can not be digested well, which is easy to lead to bloating.
Third, it will affect the sterilization effect of gastric juice.
The stomach has a certain amount of gastric juice before meals, mainly hydrochloric acid, pepsin and mucus, which are substances for digesting food and protecting gastric mucosa. Hydrochloric acid has bactericidal effect. Drinking plenty of water before meals will dilute hydrochloric acid, thus reducing its bactericidal ability and affecting appetite.