The title is quite something. The part that made it here seems reasonable enough, as it can be understood as "higher D3 levels help in not dying as much as with lower D3 levels" which is possible.
The other half is "a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3" which the abstract argues for because "Regression suggested a theoretical point of zero mortality at approximately 50 ng/mL D3."
Someone sent in the clowns. (after that abstract I'm not sure I want to check out the details)
That article is just a load of snark. It starts off my claiming that Vitamin D is suggested as a cure for all kinds of things, but the science shows that low Vitamin D levels are correlated with various diseases. There is a huge difference between saying low levels should be avoided in order to reduce disease and claiming that there is a cure. Not being able to tell the difference shows a lack of interest or understanding in the basic science involved. Railing against purported false claims is a rhetorical tactic and it is worth noting there are no citations for any of the claimed cure claims.
And the science involved is quite complex as recent studies have suggested that people can become resistant to Vitamin D in a way that mirrors insulin sensitivity. This means that serum levels vary in ways that are very much not directly related to supplementation, especially dietary supplementation.
In any case getting distracted by the "Regression SUGGESTED a THEORETICAL zero point of mortality ..." remark doesn't make sense because even Vitamin D enthusiasts rarely sustain levels much above 40.
I agree, that they even have a dosage at which they predict zero deaths is nothing short of ludicrous. It gives away that they authors are unqualified.
The other half is "a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3" which the abstract argues for because "Regression suggested a theoretical point of zero mortality at approximately 50 ng/mL D3."
Someone sent in the clowns. (after that abstract I'm not sure I want to check out the details)