A vitamin D nutritional cornucopia: new insights concerning the serum 25-hydroxyvitamin D status of the US population.
Norman AW.
Am J Clin Nutr. 2008 Dec;88(6):1455-6.
PMID: 19064502
doi:10.3945/ajcn.2008.27049
In summary, the report of Looker et al should be required reading for all nutritionists, clinicians, and vitamin D aficionados who are decision makers with regard to 25(OH)D assays, vitamin D nutritional policy, and the care of patients with vitamin D-related diseases.
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