During the period of losing weight, people should eat less foods with high sugar, high fat and high calorie. In addition, it is necessary for dieters to supplement protein. Protein is a kind of heat-producing food. After ingesting protein, people need to consume more calories to digest and absorb protein, which promotes the burning of body fat and helps to enhance the effect of reducing fat. In addition, protein is the main raw material of muscle tissue, and the reasonable supplement of protein can ensure the maximum maintenance of "lean body weight" in the process of fat reduction, and the amount of "lean body weight" determines the effect of body shaping. The scientific concept of losing weight is to reduce the excess fat in the body, maintain and appropriately increase the muscle content, so that the slim figure of both men and women will be more tall and healthy.