1, to develop a balanced diet. According to the daily requirements of various nutrients for children aged 3-6, the nutrition budget before eating and the nutrition accounting after eating are carried out. In combination with the seasonal characteristics, eight kinds of foods are selected and the supply of four nutrients (vitamin A, carotene, calcium and riboflavin) that are easily lacking due to children's partial eating habits is arranged. Dry and thin, vegetarian, thick and thin, sweet and salty should be reasonable, and eat less sweets and fried foods; Mainly cereals, supplemented by animal food; Coarse grains and flour and rice should be reasonably matched, so that they can not only be nutritionally complementary, but also contain coarse cellulose, which can stimulate gastrointestinal peristalsis, reduce chronic constipation and promote the growth and development of children.

2, scientific cooking to maintain nutrition. Scientific cooking is an important link to ensure the quality of meals and preserve the nutritional components of food. The meals made by scientific cooking methods not only have color, fragrance, taste and shape, but also meet the requirements of nutrition and hygiene. First of all, we should wash vegetables scientifically, pay attention to washing before cutting, and don't cut before washing to reduce the loss of water-soluble nutrients. It is best to soak some vegetables in water for a period of time to effectively get rid of eggs and pesticide residues parasitic on vegetable epidermis.

The cooking principle of reducing the loss of nutrients in vegetables is to stir-fry quickly. According to some experimental reports, the average preservation rate of vitamin C in leafy vegetables is 60~70%, while the preservation rate of carotene can reach 76~96%. When cooking, attention should be paid to adding salt too early, which will lead to the loss of water-soluble nutrients. It can be seen that the preservation of nutrients is related to the cooking process and skills. Unscientific cooking will cause nutrient loss or destruction.

3, it is more nutritious to be delicious. It is more important for children who are in vigorous growth and development to eat delicious food and pay attention to nutrition. Some parents think that it is good to give children nutritious food, and they don't pay attention to eating vegetable food and nutritional balance. In fact, vegetables are called a treasure house of vitamins. In100g vegetables, there are 2,600 effective units of vitamin A, 4100g carotene, and vitamin C100mg and vitamin B are also very rich. These vitamins have the functions of assisting glutamic acid and pantothenic acid, and are indispensable substances for improving brain function.