The astounding variety of foods on offer in the modern supermarket obscures the fact that the actual number of species in the modern diet is shrinking. For reasons of economics, the food industry prefers to tease its myriad processed offerings from a tiny group of plant species, corn and soybeans chief among them.

Corn is an efficient way to get energy calories off the land and soybeans are an efficient way of getting protein off the land so we've designed a food system that produces a lot of cheap corn and soybeans resulting in a lot of cheap fast food.