Role of vitamin D deficiency and comorbidities in COVID-19

Gabriela Gama Freire Alberca1, Ricardo Wesley Alberca2

  • 1Department of Microbiology, Institute of Biomedical Sciences-University of São Paulo, São Paulo 04307-100, Brazil.

World Journal of Virology
|February 4, 2022
PubMed

Insights

Vitamin D deficiency is common in patients with COVID-19 and comorbidities. This review examines the links between these factors and COVID-19 outcomes, highlighting potential implications for patient care.

Area of Science:

  • Endocrinology
  • Infectious Diseases
  • Public Health

Background:

  • Vitamin D deficiency (hypovitaminosis D) is prevalent globally.
  • Coronavirus disease 2019 (COVID-19) disproportionately affects individuals with comorbidities.
  • Emerging evidence suggests a link between vitamin D status and COVID-19 severity.

Purpose of the Study:

  • To review existing literature on the association between comorbidities, vitamin D deficiency, and COVID-19.
  • To explore the potential role of vitamin D in modulating COVID-19 outcomes in patients with underlying health conditions.

Main Methods:

  • Literature review of studies investigating vitamin D levels, comorbidities, and COVID-19.
  • Synthesis of findings from observational studies and clinical reports.
  • Analysis of the interplay between vitamin D status, common comorbidities, and COVID-19 prognosis.

Main Results:

  • Multiple studies report lower vitamin D levels in COVID-19 patients compared to healthy controls.
  • Comorbidities such as obesity, diabetes, and cardiovascular disease are frequently observed in COVID-19 patients with vitamin D deficiency.
  • Vitamin D deficiency is associated with increased risk of severe COVID-19 and mortality.

Conclusions:

  • Vitamin D deficiency is a significant concern in the context of COVID-19, particularly among individuals with comorbidities.
  • Addressing vitamin D status may be a potential strategy to mitigate COVID-19 severity in at-risk populations.
  • Further research is warranted to establish causality and optimal therapeutic strategies.

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