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The modification of dietary behaviors on a community-wide basis requires broad-based, multilevel approaches. Dietary interventions at the point of choice have the potential, as one approach, of reaching a large number of individuals at minimal cost. This article presents the potential advantages and limitations of point-of-choice interventions, and describes the controlled evaluations of their efficacy in restaurants/cafeterias and supermarkets. Discussion addresses the refinement and extension of successful restaurant-based strategies and the challenge of developing more powerful strategies for influencing supermarket purchases.
Mayer et al. (Wed,) studied this question.