Researchers study the link between vitamin D and inflammation
An active metabolite of vitamin D—(not the over-the-counter version) — is involved in shutting down inflammation, which could potentially be beneficial in patients with severe COVID-19. Previous studies have shown vitamin D’s ability to reduce the inflammation caused by T cells — inflamed cells in the lung characteristic of the most severe and dangerous cases of COVID-19. But as important as understanding that a drug works is understanding the how and the why. This is both to maximize benefit and minimize harm (such as preventing people from eating livestock dewormer or injecting household cleaners into their veins) as well as to pave the way for future treatments.