Under normal circumstances, the organism needs to reduce the total calorie intake and increase the total calorie consumption to achieve weight loss, so that the total calorie intake is lower than the total calorie consumption for a long period of time, and only then will the body weight be gradually reduced. Therefore, during weight loss, not only the intake of carbohydrates alone should be reduced, but also the total calorie intake of the day should be reduced. That is to say, in addition to reducing carbohydrates, high-calorie foods, refined and processed foods, high-fat foods, etc. should be reduced and counted in the total calorie range of daily intake to avoid exceeding the total calorie limit. In addition, to achieve the purpose of weight loss, on the basis of diet control, it is necessary to increase the amount of exercise. Exercise not only can increase the total calories consumed, but also exercise can improve insulin resistance and enhance insulin sensitivity. So weight loss requires a reduction in carbohydrate intake, but not just a reduction in carbohydrate intake, but also a reduction in total calorie intake for the day and an increase in total calorie consumption.