Lay summary
This study will examine Pacific Tongan youth understandings of prediabetes and its risk factors to reduce the prevalence of prediabetes by empowering Pacific communities using collective action to lead healthier lives. Specific objectives of this research are to: (1) examine Pacific Tongan youths’ perceptions and understanding of prediabetes and its risks on health and wellbeing, including identifying the ‘barriers’ of access to lifestyle management programmes; (2) develop a community-based intervention programme aimed at reducing the risk for prediabetes using community-based participatory action research and co-design methods and; (3) evaluate the effectiveness of the intervention programme on outcomes associated with risk reduction of prediabetes