VITAMIN D DEFICIENCY LINKED TO INCREASED RISK OF ANEMIA, CONCLUDES NEW STUDY ON SCHOOL CHILDREN: (Natural News) Of course you want strong bones, a reduced risk of diabetes, cancer, heart disease, and multiple sclerosis. An upbeat mood and healthier lungs are just as great. Enter vitamin D, one of your best bets in achieving overall wellness. But there’s a hitch. Getting vitamin D is no walk in the park.