If You Really Want A Long Term Food Supply For A SHTF Type Situation – Here It Is!
Aquaponics. This is a highly efficient, productive, long-term if not indefinite, supply of food.
In a nut shell, it consists of a small fish farm which feeds the vegetable garden which in turn feeds the fish farm.
Fresh fish. Fresh fruits and vegetables, every day.
With a little research, anyone can do this, easily and affordably.