It took vast new quantities of meat and corn to fabricate these dishes, a spike in demand that re-created the very essence of American agriculture and exacted a terrible environmental toll. A whole new system of industrial farming emerged, with penny-conscious conglomerates cramming chickens into feces-covered pens and stuffing them full of antibiotics. By the time we came to understand the consequences of our revised patterns of consumption, the damage had been done to our waistline, longevity, soul, and planet.