Vitamin D and Increased Ovulation Rate

• A meta-analysis of the literature evaluating the impact of vitamin D on female fertility and ovarian reserve function.

  • 2026
  • Meta-Analysis
  • Revista da Escola de Enfermagem da U S P 60
  • • Shanfei Zhao
    • Wenling Zheng
    • Guanyun Long
    • Guanglin Liang

  • PubMed: 41670949
  • DOI: 10.1590/1980-220x-reeusp-2025-0382en

  3 Insights on

  • Increased Ovulation Rate

  • High evidence

  Vitamin D supplementation showed a significant enhancement in several parameters, including vitamin D level, number of dominant follicles, Ovulation rate, and pregnancy rate (MD = -2.3295% CI [-3.07, -1.56], MD = 0.81 95% CI [0.27, 1.35], MD = 0.81 95% CI [0.17, 1.45], and MD = 0.64 95% CI [0.20, 1.07], respectively).

  Effect

  Beneficial

  Effect size

  Moderate

  Significant

  Yes