Some people drink a certain amount of white vinegar before meals to achieve the purpose of reducing stomach by promoting gastric acid secretion and slowing down the speed of gastric emptying. But the effect of white vinegar to reduce stomach is not good, excessive consumption of white vinegar can also induce digestive system diseases and produce adverse effects. White vinegar can stimulate the gastric mucosa to secrete gastric acid and promote digestion, which can help relieve fat accumulation, while white vinegar can also slow down the rate of gastric emptying, reduce appetite, reduce the overall intake of food, so as to achieve the purpose of reducing the stomach. However, the method is very ineffective and can not be used for a long time, it is recommended to take a more scientific and safer approach to reduce the belly. Excessive intake of white vinegar will cause excessive secretion of stomach acid, which will cause damage to the mucous membrane of the stomach and duodenum over time, leading to chronic gastritis, gastric ulcer, duodenal ulcer and other diseases. For people who have gastrointestinal diseases, it is not recommended to consume white vinegar to reduce stomach, on the one hand, it will lead to the aggravation of their own diseases, on the other hand, it may also induce the body to vomit, diarrhea and other gastrointestinal symptoms. It is recommended to develop scientific weight loss recipes, control the overall calorie intake, eat some low-calorie, high-protein, high-fiber food, such as soy products, chicken, eggs, milk, etc., and try to avoid eating before bedtime. Exercise moderately every day with running, yoga, weight loss exercises, etc. By adjusting the diet structure, and combined with the appropriate amount of exercise can be scientific and safe to achieve the purpose of reducing the belly.