Corn Shouldn't Be Food, But It Is

You probably have a bag of frozen corn in your freezer, or have chowed down on a buttery ear of corn at a cookout. But not only did it take thousands of years for humans to domesticate teosinte to corral it into what we now know as corn, but there's a whole bunch of reasons that it never should have reached staple crop status in our diets. It took a few thousand years of random coincidences for us to end up with that tasty side dish, and avoid getting nasty diseases like pellagra on the way.

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