The modern food system has become hyper-efficient at producing large quantities of cheap food. Food chains, from farmer to consumer, have become increasingly dominated by supermarket oligopolies in both developing and developed countries. The economic power these supermarkets have derived from globalisation and economies of scale has been relentlessly focussed both upwards and downwards along the food chain, as well as sideways towards agencies of national and local governance. Consumers may enjoy cheaper meals but the food system is neither healthy nor sustainable. Obesity is already high...