Dr William Grant gives an overview of 15 trials testing how higher blood levels of Vitamin D ( a potent steroid hormone – not a nutrient ) can: 1. Reduce your chance of catching coronavirus by 50% 2. Reduce the severity if you do catch it BAMEBigBUPACall-To-D*ActionCare HomeCoronavirusCOVID-19COVID19dark skindoctorsDr William GrantEFSAGrantGrassrootsHealthGreenVitshealth and skin colourHealth Visitorshow much vitamin d do i needimmune systemIMMUNITYMidwivesnewsnina jablonskinursesPharmacistsPPPProof+that+Vitamin+D+WorksPublic Health DirectorsshadowrulevideoVitalityVITAMINvitamin CoronavirusVitamin Dvitamin D associationvitamin d deficiencyVitaminDukVitaminDWikivlogwilliamWPAYouTube