Which vitamin is essential for the growth and development of bone, epithelial cells, and vision?

Vitamin A is essential for the growth and development of bone, epithelial cells, and vision. This vitamin plays a crucial role in cellular growth and differentiation, which is vital for the health of skin and mucous membranes (epithelial cells). Additionally, vitamin A is fundamental to vision; it is a component of rhodopsin, a protein in the eyes that allows for the perception of light. A deficiency in vitamin A can lead to issues such as impaired vision and bone growth problems, highlighting its importance in these areas of health.

In contrast, the other vitamins listed have different primary functions. Vitamin B complex is involved in energy metabolism and supports cellular function and cardiovascular health. Vitamin C primarily aids in collagen synthesis and has antioxidant properties, while vitamin E also acts as an antioxidant and is important for immune function and skin health but does not have the same direct impact on bone growth and vision as vitamin A does.