- "COVID‐19 and Vitamin D" study recommends treatment of COVID‐19 patients with high dose of vitamin D - 200,000 IU of vitamin D2 or vitamin D3 when admitted with COVID-19 followed by 4,000-10,000 IU/day - since populations most vulnerable to COVID-19 are likely vitamin D deficient https://onlinelibrary.wiley.com/doi/abs/10.1111/exd.14170 119 comments science