Vitamin D, Immunity and the Evidence
Dr. John Campbell · Explainer · 30 min · 2020 · YouTube title: Vitamin D and Immunity, Lots of Evidence
Why it's here
Cited in COVID-era threads as a physician's evidence-based argument that vitamin D is cheap, low-risk and worth considering.
What it covers
Dr. John Campbell reviews studies on vitamin D deficiency and immunity, including links to influenza and COVID-19, with Public Health England advice. He walks through the sources he cites.