During early childhood, a child’s physical growth accelerates and various body systems gradually develop. This is a critical period for physical development and knowledge growth in a person’s life. A reasonable diet can promote the good growth and development of children, make them strong, energetic, optimistic and stable. It can also improve their physical and mental health when they grow up and prevent some serious diseases in adulthood.

Children’s nutritional knowledge is biased, they do not understand the functions of various nutrients, and they are not clear about the harm to the body of eating snacks and overeating, which will lead to deviations in their diet. If the diet is unreasonable and the nutritional intake is unbalanced, some nutritional problems will occur, which will affect their normal growth and development.