Ecological means concerned with the environment and the living systems within it — how plants, animals, and people interact and coexist — the study and the reality of living systems. In food, the word frames everything from farming method to footprint: ecological agriculture works with natural cycles rather than against them, ecological footprinting measures the land and resources a diet demands, and ecological thinking asks what a food system costs the planet, not just the shelf price. The term carries a normative charge — “ecological” implies in balance, sustainable, respectful of limits — which is why marketers reach for it and scientists qualify it. Behind the adjective sits the science of ecology itself: energy flows, nutrient cycles, and the webs of dependence that link a wheat field to the climate. To call a food choice ecological is to judge it by its place in that web.