Tapping into surging interest in the impacts of our food choices on ourselves and the wider world, Paul B. Thompson provides readers with a guided tour of the landscape of food ethics, applying more than thirty years of experience working with farmers, agricultural researchers, and food system activists. Thompson follows the ethics of diet and health from the ancient world to our current obesity crisis and goes on to examine diet and health issues, livestock welfare, world hunger, social injustice in food systems, environmental ethics, Green Revolution technology, and GMOs from a philosophical standpoint.