Category I: cereals and potatoes. Cereals include rice, flour and miscellaneous grains; Potatoes, including potatoes and sweet potatoes, mainly provide sugar, protein, dietary fiber and B vitamins. This is the bottom of the tower, which should be the most eaten food every day.
Category II: Vegetables and fruits. Including fresh beans, roots, leafy vegetables, solanaceous fruits and so on. , mainly providing dietary fiber, minerals, vitamin C and carotene.
Category III: Animal food. Including meat, poultry, fish, eggs, etc. , mainly providing protein, fat, minerals, vitamins A and B. ..
The fourth category: milk, beans and their products. It mainly provides protein, fat, dietary fiber, minerals and B vitamins.
The fifth category: pure heat energy food: including animal and vegetable oil, starch, edible sugar and alcohol, mainly providing energy.
The first category has the largest proportion and the fifth category has the least proportion, which is the so-called diet pyramid structure.