https://c19vitamind.com/
Update: Vitamin D reduces COVID-19 by 80 percent - anonymous meta-analysis - Jan 5, 2021
Snapshot as of Dec 15. 2020
Treatment↓80% 42 Vitamin D studies. 33 peer reviewed
89% of studies report positive effects.
80% is the median improvement.
Sufficiency ↓53% 96% of studies report positive effects
Sufficiency (levels) studies analyze outcomes for vitamin D levels.
Confounding factors may be significant.
I have asked who is the owner of the excellent data analysis
.
See also VitaminDWiki
COVID-19 treated by Vitamin D - studies, reports, videos
As of April 17 the page had: 34 trials, 5 trial results, 17 meta-analyses and reviews, 55 observations, 34 recommendations, 53 associations, 86 speculations, 43 videos see related: Governments, HealthProblems, Hospitals, Dark Skins, 26 risk factors are ALL associated with low Vit D, Recent Virus pages Fight COVID-19 with 50K Vit D weekly