Vitamin D Directory
Vitamin D is an essential vitamin that helps your body absorb calcium and phosphorus. Not enough vitamin D -- a vitamin D deficiency -- can cause pain, hormone problems, muscle weakness, and more. Follow the links below to find WebMD's comprehensive coverage about how vitamin D helps your body, how much you need, how to get it, and much more.
Basic Information
More About Vitamin D
If you want to lower your blood pressure, vitamin D may be just what the doctor ordered. If you're trying to reduce your risk of diabetes, or lower your chances of heart attacks, rheumatoid arthritis, or multiple sclerosis, then vitamin D should be at the front of the line in your daily supplement regimen.
Videos
Slideshows & Images
Quizzes and Tools
Expert Commentary
Vitamin D News Archive
Diet Tools & Calculators
See all toolsToday on WebMD
Sign Up!
6-Week Challenges
Want to know more?

