5 Things That Increase Your Risk of Vitamin D Deficiency
If you meet any of these criteria, chances are you're not getting enough D.
You slather on sunscreen.
If properly applied, SPF 30 will block 97 percent of UV-B rays, which is why some experts feel we should (gasp!) be using less of it. In Australia—the skin cancer capital of the world—the Cancer Council has actually begun recommending a small amount of daily exposure sans protective goop.