What is it?
A fat-soluble vitamin found in some foods and also created via sunlight.
Why take it?
For prevention of bone loss, cancer, MS, high blood pressure, and more.
What’s the latest research?
Solid research links low vitamin D to osteoporosis and osteoarthritis. More recently, a four-year trial with 1,200 women found those taking vitamin D had about a 60% reduction in cancer incidence, compared with those who didn’t take it. The researchers say other major diseases may also be related to low vitamin D.

