Category I: cereal potatoes, including cereals (including rice, wheat, corn, millet, barley, oats, buckwheat, etc. ) and potatoes (including potatoes, sweet potatoes, cassava, etc. ). Because miscellaneous beans (including red beans, kidney beans, mung beans, peas, broad beans and so on. ) They are usually eaten whole, and they are often used as staple food materials, so they are also placed in this category. This kind of food is rich in carbohydrates and is what we usually call the staple food.

The second category: vegetables and fruits, rich in vitamins, minerals and dietary fiber.

Category III: Animal foods, namely livestock, poultry, fish, eggs and milk, can provide sufficient protein.

The fourth category: soybeans (including soybeans, black beans and green beans) and nuts, which mainly provide protein, fat, minerals, B vitamins and vitamin E.

The fifth category: pure energy foods, such as edible oil and sugar.

All kinds of food.

For babies under 6 months, except breast milk, no food can meet the energy and all the nutrition needed by the human body. Therefore, only a diet composed of a variety of foods can meet the human body's demand for energy and various nutrients. The types of food are quantified according to the types. It is suggested that the average number of foods that are not repeated every day should be above 12 and above 25 kinds per week, excluding edible oil and condiments.

The distribution method of 12 foods per day and 25 foods per week among the above five kinds of foods: 3 foods per day and at least 5 foods per week on average; Vegetables and fruits: average 4 kinds per day, at least 10 kinds per week; Livestock, poultry, fish and eggs: 3 species per day and at least 5 species per week; Milk, soybeans and nuts: 2 kinds a day, at least 5 kinds a week.