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June 6, 2026Frontiers in NutritionOpen Access

Vitamin D levels, general health status, and work productivity among healthcare workers—a scoping review of published literature (2010–2025)

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Authors

EVElena VasileiouDemocritus University of ThraceENEvangelia NenaDemocritus University of ThracePNPaschalis NtoliosDemocritus University of Thrace

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Implication

Scoping review shows vitamin D deficiency affects health and productivity in healthcare workers, suggesting a need for further research.

Key Points

  • This review aims to explore the prevalence of vitamin D deficiency among healthcare workers and its health implications related to productivity.
  • Comprehensive literature search from PubMed and Scopus (2010–2025), supplemented by Google Scholar.
  • Included full-text studies in English measuring serum 25(OH)D and reporting health or work-related outcomes in healthcare workers.
  • Thirty-six studies were included: 30 cross-sectional, 2 prospective, and 4 interventional, with 2 RCTs demonstrating high vitamin D deficiency prevalence among healthcare workers.
  • Vitamin D deficiency rates ranged from 30% to over 90%, influenced by factors like professional role and geographical location.
  • Higher vitamin D levels were associated with reduced presenteeism and improved immune function against respiratory infections.

Cite This Study

Vasileiou et al. (2026) studied this question.

synapsesocial.com/papers/6a23b80771a5da9775e745a2https://doi.org/10.3389/fnut.2026.1816046
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