There Is Currently Insufficient Scientific Evidence To Show That Vitamin D Can Be Beneficial In Preventing Or Treating COVID-19, Scientists Say, Warning Against Health Risk Due To High Doses Of Supplementation. London: There is currently insufficient scientific evidence to show that vitamin D can be beneficial in preventing or treating COVID-19, scientists say, warning against health risk due to high doses of supplementation. Following unverified reports that high doses of vitamin D could reduce the risk of contracting COVID-19, scientists, including those from the University of Manchester in the UK, assessed current scientific evidence base on the vitamin's use in treating infections. "Until there is more robust scientific evidence for vitamin D, we strongly caution against the use of high vitamin D supplementation," the scientists wrote in a report, published in the journal BMJ Nutrition, Prevention and Health. The report noted that vitamin D is a hormone, prod...