Fangtejian nutritional bar claims to be low in calories, contains no sucrose, and has the effects of reducing fat, controlling sugar and beautifying. It is recommended to use it sparingly or with caution. Weight loss can be roughly divided into two categories: first, scientific diet to lose weight, through scientific control of daily diet to achieve the purpose of weight loss; 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.