Vitamin D halves the risk of dying from Covid-19 or suffering a life-threatening infection.
The protective effects of vitamin D supplements against a serious Covid infection has been conclusively established, say researchers from the National Relevance Hospital Trust in Palermo, Italy.
They looked at five randomised controlled clinical trials (RCTs)—considered to be the gold standard of medical studies—and found that people taking vitamin D supplements were half as likely to die from Covid, and were 28 percent less likely to need emergency treatment in an ICU.