>Is there additional evidence that Vitamin D supplements may help or do we just know about the correlation? Yes. COVID-19 is known to affect the renin-angioten

>Is there additional evidence that Vitamin D supplements may help or do we just know about the correlation? Yes. COVID-19 is known to affect the renin-angiotensin-aldosterone signalling cascade. Vitamin D is also known to be involved in this signalling. That's why speculation about vitamin D is more than just statistical hokum. There is the chance of an error, but there is also a clear indicator for an underlying mechanism here.