Dieting is not recommended for weight loss as it is more damaging to the body and prone to rebound. Dieting can lead to malnutrition, anemia, hypoglycemic episodes, menstrual disorders in women, and even amenorrhea in severe cases. Although dieting can quickly lose a certain amount of weight in the initial period, the body’s muscle loss will also be very serious, the body’s basal metabolism will also fall very quickly. When the basic metabolism is low to a certain degree, it is difficult to maintain the weight loss effect of dieting. Dieting weight loss period due to the basic metabolism at the same time to reduce the reason, diet recovery will be more prone to gain weight than before the diet, the weight will soon rebound. The current recommended weight loss program is to exercise supplemented by a scientific diet, so as to achieve a healthy weight loss.