What is the primary function of Vitamin A in the body?

The primary function of Vitamin A in the body is crucially tied to vision and immune function. Vitamin A plays a vital role in maintaining healthy vision by contributing to the formation of rhodopsin, a pigment found in the retina that enables the eye to perceive light. This is particularly important in conditions of low light. Additionally, Vitamin A is essential for the proper functioning of the immune system. It helps maintain the integrity of skin and mucosal cells, which act as barriers against pathogens and contribute to immune response. Therefore, the association of Vitamin A with both vision and immune health highlights its significance beyond just one benefit, making it a multifaceted nutrient in supporting overall well-being.