Grains and Cereals

The defining difference between the way we used to eat as hunter-gathers and as settled peoples is in our relative recent decision as a species to subsist primarily on grains and cereals. Although grains and cereals are really just tiny seeds, to consume them in any significant quantity they must be cultivated on a very large scale, and as such, were never consumed in any great quantity by our hunter-gatherer Paleolithic ancestors.