Weight loss method refers to achieving the goal of healthy weight loss through certain scientific methods (mostly the best scientific diet). In recent years, many foreign experts and scholars have conducted extensive and in-depth research on weight loss methods, and put forward many effective methods, which can be roughly divided into two categories: first, scientific diet to lose weight, through scientific control of daily diet to achieve the purpose of losing weight; Second, the physiological period weight loss method, according to the functional state of the body and with diet, in order to achieve the purpose of losing weight.