About the study

This study investigates the complex relationship between adverse childhood experiences (ACEs) and childhood obesity, an area that has been significantly underexplored. Using data from 4,895 participants in the Growing Up in New Zealand (GUiNZ) longitudinal study, researchers examined the prevalence of ACEs at age 8 and their distribution across socioeconomic and ethnic groups. They also assessed how ACE exposure influences childhood obesity development, obesogenic behaviors, and the role of positive childhood experiences (PCEs) in mitigating these effects. Findings show that children who experience ACEs are at a higher risk of obesity and unhealthy weight-related behaviors, with ethnicity and poverty further increasing this vulnerability. Conversely, PCEs have a protective effect, reducing the likelihood of obesity even among children with high ACE exposure.

The study underscores the urgent need for policies and clinical interventions that recognize the links between childhood adversity and obesity. A holistic approach to child wellbeing—emphasizing early prevention, trauma-informed care, and strengths-based support—is essential in addressing the long-term health implications of ACEs. Promoting PCEs can be a crucial strategy in improving health outcomes for children in New Zealand, reinforcing the importance of nurturing and supportive environments in early development. These findings call for targeted initiatives to prevent ACEs and foster resilience in children, ensuring a healthier future for all.

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Suggested citation

Hashemi L, Mellar B, Ghasemi M, Gulliver P, Swinburn B, Milne B, Langridge F, McIntosh T, Fouche C (2025). Adverse Childhood experiences and childhood obesity: Can positive childhood experiences mitigate the association? Wellington: New Zealand Ministry of Social Development