The purpose of Part V is to investigate various aspects of food consumption. There is some continuity from Part IV because in Chapter 21 we look at the role of the environment in terms of the ecology of consumption but, on the whole, the next three chapters adopt a social science approach. The emphasis will shift from environmental and biological considerations to notions about the economic and social constructions of diet. As prefigured in Chapter 1, this Part has been influenced by the ‘cultural turn’ in food studies in the 1990s, but our excursions into the further realms of poststructuralism are limited by available space. Bell and Valentine (1997) have already made inroads in this direction and in future we expect a significant expansion of post-structuralist work on food.