Weight loss relies on the main way is diet control combined with exercise, if not effective aerobic exercise, rely solely on dieting to lose weight has the following hazards: 1, excessive diet control may lead to malnutrition, combined with hypoproteinemia, resulting in decreased body resistance; 2, long-term dieting may also lead to ingestion nerve center insensitivity, anorexia, but also easy to combine personality changes, such as anxiety, sensitivity, etc.; 3, diet may make weight loss in the short term, but the effect will not last; 3, dieting may make the weight drop significantly in the short term, but the effect will not last, and the weight will soon rebound after releasing the diet control, which will easily dissuade the weight loss crowd; therefore, diet control for weight loss needs to ensure a diverse diet structure based on controlling the intake of calories and sugar, rather than unlimited dieting.