Being aware of your vitamin D levels and increasing your levels if you’re deficient are two of the simplest steps you can take to stay well. This includes helping to protect against infectious diseases like COVID-19, as a wealth of data show that vitamin D levels are strongly correlated with the severity of SARS-CoV-2 infection.1 In the video above, John Campbell, a retired nurse and teacher based in England, details the findings of yet another study showing that people with higher levels of vitamin D are less likely to die from COVID-19 — and suggesting that, theoretically, “a mortality rate close to zero” could be achieved if your vitamin D level reaches 50 ng/mL.2 This information has been largely ignored by major media, unfortunately, as it has the potential to save lives. The good news is that even if the press continue to ignore it, you can easily heed the …