Vitamin D deficiency is relatively common, with an estimated prevalence between 19 and 77% in the United States.1,2 Low serum 25(OH)D levels have been associated with increased cardiovascular and all-cause mortality3 and other adverse outcomes.4,5 Further, Vitamin D supplementation is safe and low-cost. However, associations between Vitamin D supplementation and various outcomes have been mixed/have not been definitive,6 and there is limited evidence that population-based screening for Vitamin D deficiency improves outcomes.
Petrilli, C. M., Henderson, J. Keedy, J. Dibble, E. Wei, M. Y., Prussack, J. K., Greenberg, G. M., Kerr, E. (2018). Reducing Unnecessary Vitamin D Screening in an Academic Health System: What Works and When. The American journal of medicine, 131(12), 1444-1448. doi: 10.1016/j.amjmed.2018.06.025.