Dr Catharine Fleming is a Lecturer in Public Health in the School Health Science, Western Sydney University and is Stream Co-Lead for Youth Participation and Engagement in the Young and Resilient Research Centre. Dr Fleming has a PhD in paediatric nutrition and dietetics and over 12 years’ experience in paediatric nutrition relating to infant and young child feeding, paediatric food allergy and childhood obesity. Dr Fleming has research experience in mixed methods, co design, clinical and public health research methodologies covering quantitative, qualitative and data linkage studies. This experience has involved working with families, children and population-based data in paediatric nutrition in a variety of clinical, community and global settings. Dr Fleming is building a body of work focusing on protecting against lifelong chronic disease through investigating different aspects of feeding and diet in the most teachable moments of childhood and adolescents. Dr Fleming is passionate about ensuring a sustainable nutritional change occurs for children and adolescents through co-designed and development of interventions by young people for young people.