1. The importance of children’s height growth. Children’s height growth is a matter of great concern to every parent, because height not only affects the child’s appearance, but is also closely related to the child’s health and future development. Therefore, it is very important to ensure that children have adequate nutrition, good living habits and appropriate exercise. 2. The impact of nutrition on children’s growth 1. Protein: Protein is an essential substance that constitutes human tissues and organs, especially for bone growth and development. 2.