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 Oct 24, 2021, the page had: 34 trials, 6 trial results, 27 meta-analyses and reviews, 64 observations, 36 recommendations, 55 associations, 89 speculations, 48 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 Vaccines