Guide: In the process of children's growth and development, children must be supplemented with nutrition in time. Once a child lacks certain nutrients, it will cause stunting and affect the healthy growth of the child. With the continuous improvement of living standards, most parents attach great importance to supplementing vitamins for their children. There are more and more kinds of vitamins on the market, so we must pay special attention to them when choosing them, and we must understand their efficacy and role in order to really play a role. So the topic that Bian Xiao wants to share today is, what is the role of children supplementing vitamin A and vitamin D?

1. What is the effect of vitamin A supplementation for children?

Vitamin A and iron complement each other, which can increase the concentration of hemoglobin, improve the digestion and utilization rate of iron, increase the operation of iron in the human body and reduce the occurrence of anemia in the baby. Vitamin A can enhance the defense ability of respiratory tract, digestive tract and other tissues and organs, and promote antibody production, improve human immunity and reduce the chance of baby getting sick. In addition, vitamin A supplementation for children can protect epithelial tissue, maintain the integrity and function of epithelial cells, and avoid the problems of dry skin, keratinization and allergy. Can prevent infection of respiratory tract, digestive tract and urinary system. Vitamin A can also maintain children's visual development and reduce the risk of night blindness, dry eye and blindness.

Second, what is the role of vitamin D supplementation for children?

The main function of vitamin D is to improve the body's digestion and absorption of calcium and phosphorus, promote the baby's growth and bone calcification, and make the tooth development more sound. And it will increase the absorption of phosphorus through the intestinal wall and prevent the loss of amino acids through the human kidney. And it will prevent children from balding pillows, chicken breasts, O-shaped or X-shaped legs. It plays a very important role in regulating calcium metabolism, promoting calcium absorption and bone growth. Moreover, vitamin D can affect people's mood, regulate the human internal environment, affect people's mood, and make people in a positive and optimistic state for a long time.