Why is Vitamin D Necessary

Question

Why is vitamin D necessary?
A)Vitamin D critical for thermoregulation.
B)Vitamin D is required for calcium absorption from the small intestine.
C)Vitamin D protects the skin from UV radiation.
D)Vitamin D protects the skin from pathogens.

Accepted Answer

Vitamin D is necessary for proper absorption of calcium from the small intestine, which is important for maintaining bone health and preventing osteoporosis. While vitamin D has been shown to have other benefits, such as improving immune function and reducing the risk of certain diseases, its primary function is the absorption of calcium.