Vitamin A is one of the essential nutrients in the human body and plays a crucial role in human growth and metabolism. Moderate supplementation of vitamin A can also improve vision.
What is the role of vitamin A?
Vitamin A has many functions, mainly as follows: Vitamin A is known as the vitamin that maintains brightness, playing an important role in human visual production and possessing special physiological effects. If there is a lack of vitamin A, it can lead to dry skin and dry nail surfaces that are prone to splitting; Lack of vitamin A during childhood can lead to decreased resistance, susceptibility to colds and fever.