Many of the diseases which afflict people in an affluent society like the United States seem to be related to food consumption (e.g., adult-onset diabetes mellitus, hyperlipidemia, and colon cancer). In recent years, the health-related professions have become aware that their exclusive aim of disease treatment must be expanded to include health promotion. Professionals in food and nutrition, health education, social marketing, and psychology, as well as others have become interested in finding ways to promote healthy behaviors such as appropriate food consumption patterns. To modify...