I read an article a few years ago that postulated that Vitamin D itself (whatever it is) was only part of the Vitamin D story. Essentially, sunlight confers benefits that are associated with Vitamin D, but Vitamin D itself may not be the cause of those benefits. And so, supplements are not sufficient. Does anyone know enough to comment on that generally, and regarding COVID? Edit: here is the article https://www.outs…
Yes stories like this pop up all the time for lots of different diseases. There has never been a statistically significant large result observed. There's no way 90% of people dying from Covid would be saved by vitamin D supplements.
Why?
I’m not saying the opposite is true, but there is evidence for a inverse relationship between respiratory infections and vitamin D levels. We should all believe things for reasons, what reason do you have for discounting the possibility?