Research Our work is carried out across four workstreams Child and adolescent obesityLed by Russell Viner at the Institute for Child Health (UCL)Child and adolescent obesity workstream project summaries > Environment and behaviour changeLed by Andrew Steptoe and Clare Llewellyn at the Behavioural Science and Health (UCL)Environment and behaviour change workstream project summaries >Economic analysisLed by Rachel Griffith and Britta Augsburg at the Institute for Fiscal StudiesEconomic modelling workstream project summaries >Food systems and policy analysisLed by Christina Vogel at City UniversityFood policy analysis workstream project summaries >