Drinking only milk for a day does not usually result in too significant a change in weight, and weight loss is a long-term process that does not result in significant weight loss in one day. Weight change has a lot to do with calorie intake and calorie consumption. When people daily calorie intake > calorie consumption, body fat is easy to generate, over time the weight will gradually rise; when people daily calorie intake < calorie consumption, the weight will usually fall. Simply put, if you want to achieve the goal of weight control, we must have a certain understanding of their own caloric intake and consumption of calories, want to lose weight can keep the caloric intake