This report delves into the critical issue of childhood obesity, particularly prevalent in Australia and New Zealand, highlighting its impact on children's health and well-being. It explores the significance of body mass index (BMI) as a key indicator and the psychological and physical implications of obesity, including potential long-term health risks. The report focuses on the KOALA (Kinder Overweight Activity Lifestyle Actions) Program, which aims to address childhood obesity through environmental, behavioral, and genetic factors. The KOALA Program's approach, involving intensive therapy and community interventions, is evaluated using Cognitive Social Theory, emphasizing the role of observational learning and social interaction in influencing behavioral changes. The evaluation considers how the program aims to promote health and fitness within families and communities, and how it uses pre-clinical biomarkers for early detection of obesity-related complications, ultimately aiming to transform the overall approach to childhood obesity in society.