Diets are more universal now. In many locations, in the recent past, frying would have been done with lard rather than vegetable oil. One can make lard from pig

Diets are more universal now. In many locations, in the recent past, frying would have been done with lard rather than vegetable oil. One can make lard from pigs that one raises in the backyard. I don't even know what a canola plant looks like, and olive trees tend not to like climates that freeze for months at a time.