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COVID-19 patients who had supplemented with Vitamin D were 3X less likely to enter ICU – June 2021

Vitamin D supplementation and Covid-19 outcomes: A systematic review, meta-analysis and meta-regression

Reviews in Medical Virology https://doi.org/10.1002/rmv.2269
Timotius Ivan Hariyanto,Denny Intan,Joshua Edward Hananto,Harapan Harapan,Andree Kurniawan

Vitamin D has many protective properties and potential role against acute lung injury. Low serum vitamin D is associated with high risk of pneumonia and development of acute respiratory distress syndrome. This study sought to analyse the efficacy of vitamin D in improving the outcomes of coronavirus disease 2019 (Covid-19) patients. Using specific keywords, we comprehensively searched the potential articles on PubMed, Europe PMC and ClinicalTrials.gov database until 8th May 2021. All published studies on Covid-19 and vitamin D were retrieved. Statistical analysis was conducted using Review Manager 5.4 software. A total of 11 studies with 22,265 Covid-19 patients were included in the meta-analysis. Our data suggested that vitamin D supplementation was associated with

  • reduction in intensive care unit admission rate (OR 0.27; 95% CI: 0.09–0.76, p = 0.010, I2 = 70%, random-effect modelling);
  • reduction of the need for mechanical ventilation (OR 0.34; 95% CI: 0.16–0.72, p = 0.005, I2 = 61%, random-effect modelling) and
  • reduction of mortality from Covid-19 (OR 0.37; 95% CI: 0.21–0.66, p < 0.001, I2 = 50%, random-effect modelling).

Further analysis showed that the associations were influenced by age (p = 0.020). Our study suggests that vitamin D supplementation may offer beneficial effects on Covid-19 outcomes. However, more randomized clinical trials are required to confirm this conclusion.

ICU Risk


Mortality Risk



This meta-analysis,like most others, ignores dose size
It also ignores if Vitamin D had been taken before or after entering hospital

Vitamin D meta-analyses for COVID-19

COVID-19 treated by Vitamin D - studies, reports, videos

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 Download the PDF from VitaminDWiki

Dosing:(subset of table in the PDF)


Created by admin. Last Modification: Wednesday June 30, 2021 13:43:14 GMT-0000 by admin. (Version 9)

Attached files

ID Name Comment Uploaded Size Downloads
15855 ICU Meta.jpg admin 30 Jun, 2021 13:38 24.70 Kb 418
15854 Mortality Meta.jpg admin 30 Jun, 2021 13:38 37.16 Kb 392
15853 Dose Meta.jpg admin 30 Jun, 2021 12:58 93.13 Kb 404
15852 Supplementation COVID meta-analysis.pdf PDF 2021 admin 30 Jun, 2021 12:58 1.13 Mb 338