Big, if true. Wouldn't one have trouble building up higher concentrations of zinc in the cells without ionophores though?
But Zinc does not need to be in the cell to help. It will also increase ACE2 activity, which is more important they are finding. When the ACE2 is destroyed, there is a build up of ANGII, which seems to be causing a majority of the issues. They are in a trial giving ACE2 directly to patients.
https://www.medrxiv.org/content/10.1101/2020.04.07.20056788v...
ACE inhibitors lower ACE, not ACE2. They actually increase ACE2.
https://www.medrxiv.org/content/10.1101/2020.04.07.20056788v... seems to support your assertion.
But yes, more zinc in meat for sure, and phytic acid will play a role reducing absorption, but deficiency could depend on genetics a lot as well.