New England Journal of Medicine, November 10, 2016 Vol. 375 No. 19, p 1817-1820.J.E.

The claim that large proportions of North American and other populations are deficient in vitamin D is based on misinterpretation and misapplication of the Institute of Medicine reference values for nutrients — misunderstandings that can adversely affect patient care.

Autor: Manson, P.M. Brannon, C.J. Rosen, and C.L. Taylor.