Comparison of total, free and bioavailable 25-OH vitamin D determinations to evaluate its biological activity in healthy adults: the LabOscat study

ConclusionsDetermination of different forms of 25-OHD in healthy young women does not offer additional advantages over standard 25-OHDT for evaluating vitamin D deficiency. In these subjects 25-OHDT values<15 ng/ml would be more appropriate for defining this deficiency.

http://link.springer.com/10.1007/s00198-017-4062-8

Source: Osteoporosis International - May 2, 2017 Category: Orthopaedics Source Type: research