Parents want their children to grow up fast, but they do not know that many factors (such as: genetics, nutrient supply, disease conditions, living environment, and even the mother’s pregnancy condition) are affecting the growth and development of the child. The supply of nutrients (including protein, fat, carbohydrates, minerals, vitamins, etc.) can be improved and regulated, and is an important lesson for parents to master. Zinc is an essential micronutrient for children, and we can understand its role in children’s growth and development in five specific ways: 1. If children have an adequate supply of zinc, the anabolism of cystine, methionine, glutathione and endocrine hormones can be carried out normally. Thus, zinc can maintain the metabolism of the central nervous system and skeletal metabolism in children, and ensure and promote the normal growth of children’s body (e.g. height, weight, head circumference, chest circumference, etc.), brain development, sexual characteristics development and sexual maturity. 2, zinc can help children maintain normal taste and smell function, and promote children’s appetite. This is because the gustatory element that maintains the sense of taste is a zinc-containing protein, which promotes the differentiation of taste buds and the binding of tasty substances to taste buds. Once zinc deficiency occurs, children will have abnormal taste sensation, affecting appetite and causing poor digestive function. 3.Improve children’s immune function and strengthen their resistance to diseases. Zinc is the trace element that has the most obvious impact on immunity. In addition to directly promoting the development and function of immune organs such as the thymus gland and lymph nodes in children, it also has the ability to directly fight against certain bacteria and viruses, thus reducing the chances of children getting sick. 4.Participate in the metabolism of vitamin A in children’s body and maintain normal physiological functions, and have a good effect on maintaining normal dark adaptability and improving low vision. 5.Zinc also protects the normal development of skin mucosa, can promote the healing of wounds and mucosal ulcers, prevent hair loss and skin roughness, epithelial keratinization, etc.