Introduction: The incidence of overweight among youth in Western Countries requires the implementation of initiatives to promote healthy lifestyles. Although under particular conditions obesity is not preventable, drawing attention on factors affecting teenagers' preferences can ameliorate the efficacy of public interventions designed for health promotion.
Methods: This study aims at eliciting teenagers' food preferences through a discrete choice experiment, conducted in Tuscany using a webAPP survey, with the participation of more than 4,700 teenagers. Respondents expressed their preferences for breakfast food based on three attributes: food quality, packaging and claim. The survey also collected information on respondents' socio-demographic characteristics, social influence and media use for food information.
Results: Teenagers' preferences for healthy foods seem positively related with their own level of food literacy. The tendency of respondents to read labels and nutritional facts is positively associated with preferences for healthier foods. Peers' influence is not significant, while family influence has a positive impact on teenagers' healthy choices. Internet usage is associated with unhealthy choices with a healthy aspect.
Conclusion: The results can be useful in defining effective actions for the promotion of healthy behaviors among teenagers, either in communication and awareness campaigns or in education and activation initiatives, with respect to the reading and interpretation of nutritional facts and labels, the role of family and friends, and the use of media.
Keywords: Discrete choice experiment; Food literacy; Food preferences; Health promotion; Teenagers.
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