A comprehensive review in The Lancet Digital Health exposes a critical gap in digital obesity prevention: apps fail because they treat the problem as an individual behaviour issue rather than a systems problem. The analysis reveals that aggressive food marketing, structural inequality, and poorly integrated digital tools are the real drivers of rising adolescent obesity globally.
Current interventions remain narrowly focused on weight loss rather than holistic health gains, and most disconnect from how young people actually live their lives. Experts argue that sustainable prevention requires reimagining digital tools from the ground up—grounded in nutrition science, informed by adolescents themselves, and addressing the commercial and structural determinants that shape food environments.
The path forward demands systemic redesign, not incremental app improvements.
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