Patients with vitamin D deficiency (less than 20 ng/mL) were 14 times more likely to have the severe or critical case of COVID than those with more than 40 ng/mL.
Vitamin D is most often recognized for its role in bone health, but low levels of the supplement have been associated with a range of autoimmune, cardiovascular, and infectious diseases. Early on in.
In a study, researchers from the Azrieli Faculty of Medicine of Bar-Ilan University in Safed, Israel and the Galilee Medical Center in Nahariya, Israel showed a correlation between vitamin D deficiency and COVID-19 severity and mortality.