Childhood obesity has emerged as a global health risk, projected to increase by 100% from 2020 to 2035. Marketing unhealthy products, especially to children, plays a significant role in this crisis. As children enter adolescence, marketing dynamics evolve, shaping their perception and engagement with food marketing content and dietary choices. Using morphological analysis, we ascertained that social media's influence on adolescents' consumption behaviours, alongside family dynamics, though significant, were underexplored. Therefore, this research aims to investigate the impact of marketer-generated social media content and family dynamics on adolescents' food choice. The methodology will involve two approaches: first, analysing the nuances of typology, verbal, and visual aspects of social media marketer generated content through Artificial Intelligence (AI) and Natural Language Processing (NLP); and second, conducting experiments to explore the influence of family dynamics and social media marketer generated content on adolescents' food consumption. The study contributes to methods, theory, and policy recommendations to promote healthier food marketing practices and protect adolescents from unhealthy influence.