This report provides a comprehensive analysis of childhood obesity, a significant global health issue affecting children and adolescents. It explores the prevalence, impact on individuals, families, and communities, and its links to cardiovascular diseases and diabetes, aligning with Australian National Health Priorities. The report delves into social determinants such as parenting beliefs, psychosocial problems, and health behaviors, highlighting how these factors contribute to childhood obesity. It also examines an upstream nursing approach, emphasizing the role of nurses in educating and empowering families to make informed choices about nutrition and physical activity. The report concludes by suggesting interventions and strategies to promote healthy habits and reduce the prevalence of childhood obesity, supported by evidence-based research and references.