Diet control is the most basic measure for weight loss and is an essential method. It is necessary to adopt a low-calorie diet and control the amount of diet so that the body’s caloric intake is less than the body’s caloric consumption, forcing the body to consume a large amount of its fat stock to achieve the purpose of weight reduction. The diet of obese patients should be based on low-calorie, high-protein, low-carbohydrate food. Low-calorie diet forces the body to consume as much adipose tissue as possible, but at the same time it is impossible not to completely consume the body’s tissue protein, which affects health. In order to reduce the consumption of protein, autumn and winter, it is time to “gain weight” season. The body’s demand for calories causes seasonal over-eating, and the reduction of outdoor activities in winter is also a reality. What should I do if I gain weight again? The proportion of protein in the diet must be increased. Many people mistakenly believe that since obesity is caused by excessive nutrition, the diet should be restricted to meat and egg foods with high nutritional value, but not to sugar-containing foods. Because of the restriction of the nutritional value of the meat and eggs food, heart muscle and vascular smooth muscle protein will gradually lose and cause cardiovascular disease, serious will die, and the patient is easy to produce hunger, thus will increase the intake of food, the result is not only can not lose weight, but also make weight increasing. Eating before bedtime, calories are most likely to turn into fat and accumulate in the abdomen, which should be avoided. Drink more water, drink at least 1500 ml of water every day to reduce the accumulation of waste in the body and help the body’s metabolism to proceed normally. In short, obese patients recipes can be supplemented with moderate amounts of high quality fat and protein, such as fish, dairy products, cattle, sheep, poultry, meat, eggs and soy foods, which are helpful for the body’s regulation and easier to lose weight. Eat more vegetables containing low carbohydrates, staple foods should be reduced, and avoid sweet, fried and high-fat, high-calorie and calorie-concentrated foods (such as fatty meats, pastries, canned food, fruit juices, soft drinks, colas and nuts such as peanuts, melon seeds, cashew nuts, pine nuts and walnuts). In addition, alcohol consumption should be appropriately reduced.