Vitamin D has been hypothesized by a lot of people as it explains a lot of peculiarities about covid.
Northern Hemisphere countries have a seasonal pattern of the virus that countries nearer to the equator don’t. Southern Hemisphere countries have opposite patterns as in the north.
VD deficiencies also could help explain why black people get covid something like 1.5x more than white people do but die from it 3x as frequently. In the US, Asians, who have VD deficiencies as bad as black Americans, get covid less frequently than whites but do far, far worse when infected.
Of course, low VD could mean you have a disease that depletes your stores which would be a comorbidity, could mean you’re already sick and simply staying inside and avoiding sunlight, could mean you’re black and have whatever other risk factors black people have whatever risk factors make blacks more susceptible to the illness or could mean nothing whatsoever.
Trials around the world in giving hospital patients higher doses of VD have been mixed.
Perhaps it’s all simply happy coincidence but writing off somebody for saying something that is under clinical study throughout the world has having possible merit as being a drunken bar conversation or deriding that person as being a ‘total rando’ is part of the reason better discussions aren’t had here.