The real function is to satisfy hunger. Drinking water while eating will make the stomach swell, and soon people will no longer feel hungry, thus reducing their food intake.
Water is the source of life. Reasonable drinking water helps to lose weight, increase vitality and promote health. However, "water can carry a boat, but it can also overturn it." If you don't drink it properly, it will be counterproductive. Here are some common drinking methods.
Don't wait for thirst before drinking water during dieting? Yes, one liter of liquid (including all kinds of drinks) is not enough every day. When people go on a diet, they must drink more water. Because it takes 1.5-2 liters of water every day to remove the garbage released by human organs. If people don't drink enough water, the cells of the body will be short of water. Then they will behave abnormally, and people will be mentally ill and lazy. When the human body is short of water by 2%, the energy will drop by 20%.