Middle class teenagers saw obesity as the result of being lazy, unhealthy or unable to control a desire for 'bad foods'. Middle class parents feel a moral urgency to ensure their children to stay an 'acceptable' size. Being seen to be 'respectable' in this regard is a significant sign of middle class distinctions.

The findings of the study have proved important for understanding why inequalities in diet, health and weight continue to persist. NHS Health Scotland have used to them to help Health Boards implement child healthy weight initiatives and the Department of Health's new Healthy Living social marketing initiative also uses the project's research.

However, policymakers should not expect quick results, the study warns. 'Given the complex, embedded nature of familiar practices and beliefs,' says Dr Wills, 'policy and practice targets need to be realistic in terms of the timescale needed for achieving change.'

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