Dear sir: please try preserving foods w/o salt, you can't do it,,, the point being,, that w/o cheap food preservation,, there would be no fat blacks. disregard,, go back to sleep.......
There is no need for highly salted or preserved foods, other than to package them up and let them sit on a shelf.
It is a common feature of the diets of obese Americans of whatever population group to rely upon highly salted packaged foods, and there is no need for it, and it is, contrary to the authors suggestion, MORE expensive.
Never needed to put salt in my freezer :-p