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Clinical PracticeFree Preview

Vitamin D Insufficiency

List of authors.
  • Clifford J. Rosen, M.D.

The author reviews data supporting the recommendation to maintain a serum concentration of vitamin D above 20 ng per milliliter and notes the lack of evidence to support a higher target level. He reviews the limitations of data linking vitamin D insufficiency to chronic disease risk.

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Funding and Disclosures

Dr. Rosen reports serving as an unpaid consultant for Lexicon Genetics and serving on the Vitamin D Subcommittee for the IOM, for which he received reimbursement for travel expenses.

Disclosure forms provided by the author are available with the full text of this article at NEJM.org.

No other potential conflict of interest relevant to this article was reported.

An audio version of this article is available at NEJM.org.

Author Affiliations

From the Maine Medical Center Research Institute, Scarborough.

Address reprint requests to Dr. Rosen at Maine Medical Center Research Institute, 81 Research Dr., Scarborough, ME 04074, or at .

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