Vitamin D and Disease

  A recent study out of Israel had once again confirmed that vitamin D levels may determine whether covid causes serious illness or not. In this study those with low blood levels of vitamin D (<20 ng/mL) were 14 times more likely to have severe or critical disease than patients with 25(OH)D ≥40 ng/mL. The higher level used in this study (40 ng/mL) is the low end of adequate vitamin D intake. The conclusion of the study was, "Among hospitalized COVID-19 patients, pre-infection deficiency of vitamin D was associated with increased disease severity and mortality."

I first wrote about the value of vitamin D in fighting the flu in 2007. 

Links-- Click on links to see articles

Dror AA, Morozov N, Daoud A, Namir Y, Yakir O, Shachar Y, et al. (2022) Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness. PLoS ONE 17(2): e0263069. https://doi.org/10.1371/journal.pone.0263069