Vitamin D is sometimes called the “sunshine vitamin” because it’s produced in your skin in response to sunlight. It’s a fat-soluble vitamin in a family of compounds that includes vitamins D-1, D-2, and D-3.

Vitamin D has multiple roles in the body. It assists in:

Promoting healthy bones and teeth
Supporting immune, brain, and nervous system health
Regulating insulin levels and supporting diabetes management
Supporting lung function and cardiovascular health
Influencing the expression of genes involved in cancer development