It would have been beneficial if the study mentioned outcomes and levels of vitamin D supplementation. There are doctors who have pushed for 5,000 IU's for some time. And there is research that's over a year old that shows that at 50 nanograms per milliliter blood level you have near zero deaths. That same paper says that you need 5,000 IU to achieve that. I have supplemented with 5,000 IU for years and after having my level tested last year went to 7000. I haven't been vaccinated nor has my wife. Everyone where she works except her is vaccinated and has covid. Neither of us have gotten covid despite obviously being exposed to it and the only thing that we have done is maintained high vitamin D levels. And the misinformation folks we're saying this from the early days of the pandemic and yet mainstream media doesn't really seem to want to address it.