Food and Behaviour Research

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The role of vitamin D in the prevention of coronavirus disease 2019 infection and mortality

Ilie PC, Stefanescu S, Smith L. (2020) Aging Clin Exp Res. 2020   May 6. doi: 10.1007/s40520-020-01570-8. [Epub ahead of print] 

Web URL: Read this and related abstracts via PubMed here. Free full text of this article is available online


WHO declared SARS-CoV-2 a global pandemic. The present aim was to propose an hypothesis that there is a potential association between mean levels of vitamin D in various countries with cases and mortality caused by COVID-19.

The mean levels of 
vitamin D for 20 European countries and morbidity and mortality caused by COVID-19 were acquired.

Negative correlations between mean levels of 
vitamin D (average 56 mmol/L, STDEV 10.61) in each country and the number of COVID-19 cases/1 M (mean 295.95, STDEV 298.7, and mortality/1 M (mean 5.96, STDEV 15.13) were observed. 

Vitamin D levels are severely low in the aging population especially in Spain, Italy and Switzerland. This is also the most vulnerable group of the population in relation to COVID-19.

It should be advisable to perform dedicated studies about 
vitamin D levels in COVID-19 patients with different degrees of disease severity.


This research group has already made available a free report on Vitamin D and Immunity, documenting the very low levels of Vitamin D in the Irish population, particularly in older adults, who are by far the most vulnerable to severe forms of both influenza and COVID-19.

See the associated news article here:

And for more information on the fundamental importance of Vitamin D for both brain and body health, see: