Vitamin D3 Called the sunshine vitamin, vitamin D is
formed naturally in the skin by exposure to sunlight. But
when an individual does not get enough sun exposure,
their body cannot make sufficient vitamin D. Vitamin D
supplementation is especially important because it’s hard
to get enough during our long, dark northern winters.
Vitamin D is a vitamin and hormone that stimulates the
body to absorb calcium, and it is needed to keep bones
strong. People deficient in vitamin D levels tend to have
softer, thin bones, predisposing them to fractures. Vitamin
D is especially important for the elderly because of their
difficulty synthesizing vitamin D from sunlight as some
medications interfere with vitamin D absorption.