747 - What is the expected improvement in maternal vitamin D status that occurs with supplementation during pregnancy? A systematic review and meta-analysis

Marisa van Arragon, University of Auckland, Auckland, Auckland, New Zealand; Robert K. Scragg, School of Population Health, University of Auckland, Auckland, Auckland, New Zealand; Cameron C. Grant, University of Auckland, Auckland, Auckland, New Zealand; Vanessa Jordan, University Of Auckland, Auckland, Auckland, New Zealand