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COVID-19 Mortality Risk Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3: Results of a Systematic Review and Meta-Analysis

Borsche et al., Nutrients, doi:10.3390/nu13103596 (date from earlier preprint) (meta analysis)
Borsche et al., COVID-19 Mortality Risk Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could.., Nutrients, doi:10.3390/nu13103596 (date from earlier preprint) (meta analysis)
Sep 2021   Source   PDF  
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Meta analysis of 8 studies with vitamin D levels measured pre-infection or on the day of hospital admission, showing a correlation between the levels and mortality. Authors recommend combining vaccination with vitamin D supplementation to maintain levels above 50 ng/ml. Authors extrapolate to predict a point of zero mortality, however there is no reason to predict a linear relationship where zero mortality would be reached.
Currently there are 111 vitamin D studies and meta analysis shows:
Mortality37% lower [28‑44%]
Ventilation26% lower [-2‑46%]
ICU admission50% lower [33‑62%]
Hospitalization20% lower [8‑31%]
Cases16% fewer [7‑23%]
Borsche et al., 25 Sep 2021, peer-reviewed, 3 authors.
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COVID-19 Mortality Risk Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3: Results of a Systematic Review and Meta-Analysis
Lorenz Borsche, Bernd Glauner, Julian Von Mendel
Nutrients, doi:10.3390/nu13103596
Risk Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3: Results of a Systematic Review and
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