I've recently posted 2 Vitamin D studies on HN. One "COVID‐19 and Vitamin D" study recommends treatment of COVID‐19 patients with high dose of vitamin D - 200,

I've recently posted 2 Vitamin D studies on HN. One "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://news.ycombinator.com/item?id=24132440 https://news.ycombinator.com/item?id=24132440) Another study (cited by Deva Boone) discusses Vitamin D deficiency is a predictor of poor prognosis in patients with acute respiratory failure due to COVID-19: 81% of patients had hypovitaminosis D; severe vitamin D deficiency patients had a 50% mortality probability, while those with vitamin D ≥ 10 ng/mL had a 5% mortality risk (https://news.ycombinator.com/item?id=24109396 https://news.ycombinator.com/item?id=24109396)