”Food exchange” is an internationally accepted diabetic diet control method. The Department of Nutrition of Peking Union Medical College Hospital was the first one to introduce this method in China, and improved it with the actual situation of Chinese diabetic patients, and achieved good clinical results after applying it. The application of “Food Exchange” will greatly enrich your daily life and simplify the design of recipes. You can choose food according to your eating habits, economic conditions, seasons, market availability, etc., and adjust three meals a day. On the premise of not exceeding or ensuring control of total calories throughout the day and adequate nutrition, diabetic patients can choose foods as normal people do, making meals colorful. A hospital nutrition department uses the food exchange portion to divide food into four categories (subdivision can be divided into eight subcategories), and each portion of food contains about the same amount of calories, about 90 kcal. Each portion of the same type of food contains similar protein, fat and carbohydrates, and can be interchanged at will. The following table shows the contents and nutritional values of the four main categories (eight subcategories) of food exchange. Food exchange table (Note: All weights refer to raw weight.)