Produced in response to sunlight hitting your skin, Vitamin D helps keep your immune system in top shape. Here are three benefits of Vitamin D that may surprise you, including that it helps you fight depression. Learn more about how to avoid a vitamin D deficiency and what foods you can eat to boost your levels.
Vitamin D appears to be a marker of general good health. That's why low Vitamin D levels seem to be associated with so many chronic diseases. However, association is different than causing them.