400 IU Vitamin D for UK adults with COVID is based on a RTI study biased by infants

Editorial: Vitamin D and COVID-19 in older age: evidence versus expectations

British Journal of General Practice, January 2021

" Although recently updated meta-analytic evidence continues to suggest a modest protective effect against acute respiratory infections for a daily vitamin D dose equivalent of 400–1000 international units (IU) (odds ratio 0.70; 95% confidence interval = 0.55 to 0.89) ,13

📄 Download the PDF from VitaminDWiki

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Reference 13 follows:

Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of aggregate data from randomised controlled trials

Nov 2020 preprint, not peer reviewed

David A Jolliffe et al

📄 Download the preprint PDF from VitaminDWiki

This preprint had so many errors that it was not included in VitaminDWiki

That it ignored with weight/age of the participants was just one of many problems

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The editorial authors claim that there have been no trials completed - but there have been

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

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Many clinical trials are underway which are testing Vitamin D to fight COVID-19

The ones with shading have reported