Drinking salt water in the morning on an empty stomach will not have the effect of weight loss, because after a full night’s rest the whole system of the organism will consume a lot of water, early in the morning the body is in a state of extreme dehydration, replenishment of water is necessary. Although light salt water can meet the body’s water shortage needs, but also ingested a large amount of salt, it is easy to form tissue edema. In addition, the daily demand for salt in human daily life is very low and can be completely satisfied by daily food. If the body is not vomiting, diarrhea or excessive sweating symptoms, do not need to drink light salt water to replenish salt, excessive intake can easily lead to an increase in osmotic pressure resulting in edema, and it is easy to cause damage to the intestinal digestive function, the normal diet has a certain impact on people, easily leading to malnutrition and even gastritis and other diseases.