Obesity has been called a number of diseases, and has been a serious threat to our health. Dietary weight loss is scientific, the key to a reasonable diet is “moderate”, mainly through a balanced diet to achieve. A balanced diet is a diet that contains a complete range of nutrients in sufficient quantity and in the right proportion. The following are the principles of dietary weight loss. 1, often eat beans and their products: rich in protein and vitamins, high calcium content, high utilization. 2, often eat the right amount of fish, poultry, eggs, lean meat, less fatty meat and meat and oil. 3.Diverse food, cereal-based: A balanced diet must be composed of a variety of foods, and a wide variety of foods is advocated. A variety of foods includes five major categories: cereals and potatoes; animal foods; legumes and their products; vegetables and fruits; and pure caloric foods. 4, eat more vegetables, fruits and potatoes. Meals rich in vegetables, fruits and potatoes.