Jukic AMZ, Wilcox AJ, McConnaughey DR, Weinberg CR, Steiner AZ
Epidemiology. 2018 Jan 15. doi: 10.1097/EDE.0000000000000804.
Lower levels of 25(OH)D are associated with longer follicular phase and an overall longer menstrual cycle. Our results are consistent with other evidence supporting vitamin D’s role in the reproductive axis, which may have broader implications for reproductive success.