Pandemy of vitamin D deficiency

Yes, we know “slow virus is good for your lab as it keeps your lab running” with similiar mechanisms are being found in many research areas. Best of all – declare everybody as diseased (or at least at risk) like seen in Vol 624 (sic!) of “Advances in Experimental Medicine and Biology”:
One billion humans with a serious disorder? Forget both Darwin and intelligent design? I think some people forgot how rickets looks like, yea, yea.