Vitamin D supplements could add years to life.  Lower your risk of death by seven percent with a daily dose of vitamin D.
D002908:Chronic Disease / Q000517:prevention & control; D019587:Dietary Supplements; D006304:Health Status; D006801:Humans; D009026:Mortality / Q000639:trends*; D014807:Vitamin D / Q000627:therapeutic use*
D014807:Vitamin D