Vitamin D and COVID-19 for Patient Health Measures

The world is in the grip of the COVID-19 pandemic. Public health measures that can reduce the risk of infection and death in addition to quarantines are desperately needed. This narrative reviews the roles of vitamin D in reducing the risk of respiratory tract infections, knowledge about the epidemiology of influenza and COVID-19, and how vitamin D and COVID-19 for patient wellness might be a useful measure to reduce risk. Click here for a study review by Sally Lynch, MS, CDN.

Vitamin D and COVID-19


  • Several observational studies and clinical trials reported that vitamin D supplementation reduced the risk of influenza, whereas others did not.
  • Evidence supporting the role of vitamin D in reducing risk of COVID-19 includes that the outbreak occurred in winter, a time when 25-hydroxyvitamin D (25(OH)D) concentrations are lowest; that the number of cases in the Southern Hemisphere near the end of summer are low.

In this article, you will learn:

  1. Vitamin D and Mechanisms to Reduce Microbial Infections
  2. Clinical and Epidemiological Findings Regarding COVID-19
  3. Pneumonia
  4. Hospital-Acquired Infections
  5. Proposed Actions

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