The relationship between social influence and the development of attitudes to eating was explored in an experimental study. Schoolgirls (n = 59, median age = 15 years) listened to an interview in which the interviewee (identified as a radical feminist, a sportswoman or a women's magazine journalist) gave either a pro-diet or an anti-diet message. Following the interview, participants completed a questionnaire which examine their attitudes to eating and their judgements of the interviewee. The results supported predictions that influence would vary as an interactive function of the message and the normative ingroup-outgroup Status of the message source. However, different patterns of influence were observed on two factors that emerged from an analysis of the eating disorder items, suggesting that there were important differences in the shaping of subjects' beliefs about appropriate eating behaviour, (a) for themselves personally and (b) for the community in general. The findings suggest that social influence has a significant but complex impact upon the development of potentially harmful attitudes to eating. It also appears that, for a variety of reasons, certain anti-diet messages may actually be a counter-productive means of improving female body satisfaction. (C) 1998 John Wiley & Sons, Ltd.