Vitamin D Supplements for Prevention of Covid-19 [pdf]

If these were UK participants with median age 60, and the last follow-up was june 2021, more than half would have been vaccinated during the period.<p>Also, the probability of hospital visits (not ventilation) for covid in this group was 1.5%.

CONCLUSIONS:<p>Among adults with a high baseline prevalence of vitamin D insufficiency, implementation of a test-and-treat approach to vitamin D replacement did not reduce risk of all-cause ARI or Covid-19.

Having enough vitamin D seems like it&#x27;d be correlated with getting enough outside-time in the sun, which also likely means the person moves their body, maybe eats real food, maybe gets some decent sleep, and maybe has stretches of good mental health, all of which at least seem to help people have higher resistance to infection.