Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study – Science Direct

The vitamin D endocrine system have a variety of actions on cells and tissues involved in COVID-19 progression. Early calcifediol (25-hydroxyvitamin D) treatment to hospitalized COVID-19 patients significantly reduced intensive care unit admissions-Calcifediol seems to be able to reduce severity of the COVID-19. Calcifediol seems to be able to reduce severity of the disease. https://www.sciencedirect.com/science/article/pii/S0960076020302764