Clinical, Research, and Public Health Implications of Poor Measurement of Vitamin D Status

There is widespread concern about the high prevalence of vitamin D deficiency amid evidence to support that such a state may increase the risk of a wide range of adverse health outcomes. Estimating the prevalence of deficiency, as well as establishing linksto health outcomes, requires the accurate and precise measurement of 25-hydroxyvitamin D [25(OH)D] in serum or plasma. Accurate measurement of 25(OH)D underlies the definitions of vitamin D...