Effect of vitamin D supplementation on hormones and menstrual cycle regularization in polycystic ovary syndrome women: A systematic review and meta-analysis
Han Y, Cao Q, Qiao X, Huang W
Published in Journal of Obstetrics and Gynaecology Research
Methodology
Systematic review and meta-analysis of 12 studies including 849 women with PCOS examining vitamin D supplementation effects on LH, FSH, LH/FSH ratio and menstrual regularization.
Key Findings
Vitamin D reduced serum LH (SMD -0.41), with subgroup effects at doses up to 4000 IU/day and treatment up to 8 weeks; effects on menstrual regularity were less consistent.
Conclusions
Vitamin D can modestly improve hormonal profiles in PCOS, but evidence for restoring regular cycles remains limited.
Limitations
Small included trials, differing baseline vitamin D status, short durations, and co-supplementation confounding.
Supplements Studied
Our study indicated that vitamin D supplementation could reduce serum LH (standard mean difference [SMD]: -0.41; 95% confidence interval [CI]: -0.54, -0.28; p < 0.01).
Related Health Concerns
Study Details
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Disclosures
Funding
Not stated
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.