From the point of view of food categorization and nutrient content, some foods contain more of certain nutrients and less of others, and no one food can provide all the nutrients that the human body needs. For example: pork is rich in protein, vitamin A, vitamin D and other nutrients, but it almost does not contain vitamin C; fresh tomatoes are rich in vitamin C, but the protein content is very small. So all kinds of food reasonably with eat in order to meet the needs of the human body. The Chinese Nutrition Society designed the "Balanced Diet Pagoda" based on the dietary guidelines for Chinese residents and the characteristics of the dietary structure of Chinese residents to indicate a balanced diet and to guide people on how to reasonably mix and match various types of food. Pagoda consists of five layers:

The first layer of cereals, such as rice, steamed bread, potatoes, etc., which is the bottom of the tower, indicating that it should be the most eaten food every day. You should eat 300 to 500 grams a day.

The second layer of vegetables and fruits, which should also be eaten more every day, is second only to staple foods in the diet. You should eat 400 to 500 grams of vegetables and 100 to 200 grams of fruit every day.

The third layer consists of meat, eggs, poultry, fish and tofu, which should be eaten in moderation every day, but less than vegetables and fruits. You should eat 50 grams of fish and shrimp, 50 to 100 grams of animal and poultry meat, and 25 to 50 grams of eggs every day.

The fourth layer is mainly dairy products. You should eat 100 grams of milk and milk products and 50 grams of beans and bean products every day.

The fifth layer of pure energy foods, known as fats and oils, is the tip of the tower. You should eat the least amount per day. With no more than 25 grams per day.

Although, the Balanced Diet Pagoda is based on the dietary principles of healthy people, it is still a reference for the majority of gastrointestinal patients to base their food combinations on this principle. The patient with gastrointestinal disease has weakened digestive and absorption functions, and should make some adjustments according to the situation when he or she is eating food, so that he or she can eat what is suitable for him or her and make up for what he or she lacks. Not only to meet the reasonable dietary structure, but also to supplement the lack of nutrients, but also suitable for gastrointestinal disease patients to eat.