COVID-19 Vitamin D, now conclusive that Dr John Campbell can’t critically assess a study February 6, 2023
COVID-19 December 23, 2021 Fact checking Vitamin D claims (The Science)There is no question that vitamin D is essential for optimal immune function, but that doesn’t mean it will give you superpowers against COVID, and it is possible to get too much of a good thing. In this video, Dr…