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Micronutrient perspective on COVID-19: Umbrella review and reanalysis of meta-analyses

Xie et al., Critical Reviews in Food Science and Nutrition, doi:10.1080/10408398.2023.2174948 (meta analysis), PROSPERO CRD42022353953
Xie et al., Micronutrient perspective on COVID-19: Umbrella review and reanalysis of meta-analyses, Critical Reviews in Food Science and Nutrition, doi:10.1080/10408398.2023.2174948 (meta analysis), PROSPERO CRD42022353953
Feb 2023   Source   PDF  
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Systematic review and meta analysis of micronutrient supplementation, showing vitamin D supplementation associated with lower mortality, mechanical ventilation, ICU admission, and severity. Note that forest plots have OR>1 favoring supplementation. Vitamin D deficiency was also associated with higher mortality, mechanical ventilation, ICU admission, severity, and cases.
Currently there are 111 vitamin D studies and meta analysis shows:
OutcomeImprovement
Mortality37% lower [28‑44%]
Ventilation26% lower [-2‑46%]
ICU admission50% lower [33‑62%]
Hospitalization20% lower [8‑31%]
Cases16% fewer [7‑23%]
This study includes zinc and vitamin D.
Xie et al., 15 Feb 2023, peer-reviewed, 16 authors, trial PROSPERO CRD42022353953.
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