Vitamin A is one of the three essential micronutrients needed by the body to help keep eyes healthy and bright. Vitamin A deficiency causes children to grow slowly, have reduced resistance, or suffer from respiratory and digestive diseases, night blindness, and even corneal ulcers.

Vitamin A is a growth micronutrient and is essential for children's development, helping to strengthen the immune system and fight infections. However, if supplemented too much, causing excess vitamin A, it can also lead to many harmful effects. Therefore, parents need to know when to take high doses of vitamin A.