The results investigating the relationship between vitamin D levels and gestational diabetes
mellitus (GDM) are inconsistent. Thus, we focused on evaluating the association of vitamin D …

This systematic review and meta-analysis of randomized controlled trials (RCTs) was
conducted to summarize the effect of vitamin D supplementation on glucose homeostasis …

Abstract Background/Aims: Whether maternal vitamin D deficiency is associated with
gestational diabetes remains controversial. This meta-analysis aimed to systematically …

Introduction Proper nutrition is important for overall health, and it reduces healthcare costs
associated with malnutrition. Many studies have investigated vitamin D deficiency and its …

Results The vitamin D level of GDM subjects was much lower than healthy subjects (SMD=–
0.71, 95% CI:–0.91,–0.50). Vitamin D deficiency was associated with high risk of GDM (OR …

Purpose Vitamin D plays a key role in immune function. Vitamin D deficiency may play a role
in the pathogenesis of infections, and low levels of circulating vitamin D are strongly …

Vitamin D (VitD) deficiency during pregnancy has been associated with adverse neonatal
outcomes and increased risk of late pregnancy complications. We planned to correlate …

Aim. This study investigated the associations among early pregnancy vitamin D
concentrations, seasonality, and vitamin D metabolic gene variants and how these variables …

Objective. Depressive symptoms during pregnancy increase the risk for adverse outcomes
in women and children. Lower vitamin D levels are suggested to be associated with higher …

Objectives To test the hypothesis that a link existed between vitamin D levels in the first
trimester and gestational diabetes mellitus (GDM). Methods The 25‐hydroxyvitamin D3 …