Zinc is one of the essential trace elements for the human body. It is an indispensable substance in important physiological processes such as human growth and development, reproductive inheritance, immunity, and endocrine. It plays an extremely important role and is known as the "flower of life", "source of intelligence", and "the element of marital harmony". Infants, children, and adolescents grow and develop rapidly and have a high demand for zinc nutrition, but often have an unreasonable diet, which can easily lead to insufficient zinc intake. Zinc deficiency in the human body must be supplemented in time, otherwise it will affect the body's functions. To supplement zinc, you can eat more foods rich in zinc, such as protein zinc, oysters, walnuts, and animal liver.