Health economic evaluation provides crucial evidence for resource allocation decisions. Despite this, very few economic evaluations have been conducted for early childhood obesity prevention strategies. Part of the reason for this is the unique challenges associated with economic research in very young children. Anagha will be presenting an overview of key advances made by the health economics stream of CRE-EPOCH to address these challenges. She will discuss the EPOCH health economic model and a costing protocol which enables economic evaluation of early childhood interventions by predicting longer term costs and benefits. She will show how the model and protocol have been used to calculate the cost-effectiveness of two interventions in early childhood: the Prevention of Overweight in Infancy (POI) and Romp & Chomp. Finally, she will discuss the key findings and messages for policy and practice.