1. Am J Clin Nutr. 2008 Apr;87(4):1080S-6S. Vitamin D deficiency: a worldwide problem with health consequences. Holick MF(1), Chen TC. Author information: (1)Department of Medicine, Boston University School of Medicine, 715 Albany Street, M-1013, Boston, MA 02118, USA.
[email protected] Vitamin D deficiency is now recognized as a pandemic.