Vitamin D Supplementation and Sleep: A Systematic Review and Meta-Analysis of Intervention Studies
This 2022 systematic review and meta-analysis evaluated the effects of vitamin D supplementation (VDS) on sleep quality, quantity, and disorders. Analyzing data from multiple randomized controlled trials, the study found that VDS significantly improved sleep quality, as evidenced by a notable decrease in Pittsburgh Sleep Quality Index (PSQI) scores (mean
June 26, 2025
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