Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of aggregate data from randomised controlled trials
et al., medRxiv, doi:10.1101/2020.07.14.20152728 (Preprint) (meta analysis)
Meta analysis of 40 RCTs showing that vitamin D supplementation is safe and reduced risk of acute respiratory infections, odds ratio OR 0.89 [0.81-0.98].Currently there are
94 vitamin D
for COVID-19 studies, showing 35% [25‑43%] lower mortality, 31% [-1‑53%] lower ventilation, 49% [32‑62%] lower ICU admission, 18% [5‑29%] lower hospitalization, and 12% [2‑21%] lower cases.
Jolliffe et al., 17 Jul 2020, preprint, 41 authors.
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