In a study conducted in a Galilee hospital, 26 percent of vitamin D-deficient coronavirus patients died, while among other patients the figure was at 3%.  — Times of Israel

If only black lives mattered?  Dark skins are so much more likely to be deficient, this is one of those absolutely easy wins for any politician, yet none of them are doing it?

Nearly half the people in the study were deficient, and half of those who were seriously deficient in Vitamin D would go on to develop a severe case. These were the people with levels below 20 ng/ml. Of all the people above that, only 10% would get a severe case. And just being "above 20ng" would still be classified as moderately deficient by many measures, yet it made such a huge difference.

It was a life and death thing — the mortality rate was 25%, fully five times higher for those who fell below the 20ng/ml bar.

The Israeli study looked at the Vitamin D levels of 1200 patients in their medical records before they got infected with Covid. This is important because although studies like the Indonesian study last year showed that people with low levels of Vitamin D were much more likely to die of Covid, those patients weren't assessed until they turned up at hospital when  they were already sick. We couldn't be sure that something about  Covid itself wasn't chewing through the Vitamin D levels and causing the deficiency. So an Israeli team looked back through their records for up to 2 years to see what their last blood tests showed.