I made this as a reaction to the new food plate that replaces the old food pyramid.
Their work is an improvement, but it amounts to some beautiful window-dressing.
I primarily used data from Environmental Working Group’s Farm Subsidy Database, as well as some other sources to determine crop usage (much of the corn, soy, etc. is used as feed). The data is scathing enough that I erred on the charitable side. Questions? email me.