This study aims to evaluate the effectiveness of an artificial intelligence (AI)-supported, context-aware digital nudging intervention designed to reduce ultra-processed food consumption and improve dietary sustainability among adolescents and young adults. The intervention utilizes real-time behavioral data, including image-assisted dietary logging and contextual information, to identify high-risk consumption moments and deliver personalized, non-coercive nudges. The study will assess changes in ultra-processed food intake, contextual consumption patterns, and sustainability-related dietary indicators.
Adolescents aged 12 to 25 years
Ownership of a smartphone or regular access to a digital device
Ability to use the digital intervention platform
Willingness to provide informed consent (and parental consent where applicable)
Presence of medical conditions requiring a specific therapeutic diet
Participation in another dietary or behavioral intervention study
Severe cognitive or psychological conditions that may impair participation
Inability to use digital tools or applications