Scientific weight loss can be summarized as keep your mouth shut and move your legs. Most of the obesity belongs to simple obesity, and too much energy intake, or too little exercise, a few obesity belongs to other diseases caused by secondary obesity, pituitary tumor and adrenal gland tumors and other causes of obesity, belongs to secondary obesity, the need for surgical treatment to improve. Keep your mouth shut and move your legs belongs to the weight loss measures for simple obesity. Keep your mouth shut is not simply eating less or not eating food, but should be to adjust the diet structure, eat more vegetables and protein-rich foods, and reduce the intake of fat-rich and carbohydrate-rich foods, fat provides 9 kcal of calorie per gram, and carbohydrates provide 4 kcal of calorie per gram, and total calorie intake of fat and carbohydrates cannot exceed 1,200 kcal per day. The total calorie intake of fat and carbohydrates should not be more than 1200 kilocalories per day; moving legs means that you need to do running or swimming and other sports for more than one hour per day.