Those are some substantial assertions. Do you have references to back up those claims? The Mayo Clinic page on vitamin D lists a number of positive effects, f

Those are some substantial assertions. Do you have references to back up those claims? The Mayo Clinic page on vitamin D lists a number of positive effects, for example. https://www.mayoclinic.org/drugs-supplements-vitamin-d/art-20363792 https://www.mayoclinic.org/drugs-supplements-vitamin-d/art-2...