It doesnt have anything to do with the iron in the beef that causes the greater chance for covid severity? Does it?
Did you actually read the observational study? Its very flawed. However the reason I believe it happens to be correct is vegetarians generally intake alot less iron than traditional American diet. So its not necessarily healthier for you in general but in the world of a weakening magnetic field, increas in radiation, & covid intaking less or no read meat is a good idea.