Effectiveness and Safety of Vitamin D in Relation to Bone Health Topic page summarizing evidence report on vitamin D. This outdated information has been archived and is available for reference purposes only. To access the archived document, please go to: http://archive.ahrq.gov/clinic/epcarch.htm. Current as of August 2012 Internet Citation: Effectiveness and Safety of Vitamin D in Relation to Bone Health. August 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/redirects/vitad.html