Creating a whole-of-government approach to promoting healthy weight: What can Health in All Policies contribute?

Objectives: This paper examines the opportunities and barriers that the South Australian Health in all Policies (SA HiAP) approach encountered when seeking to establish a whole-of-government response to promoting healthy weight. Methods: The paper draws on data collected during 31 semi-structured interviews, analysis of 113 documents, and a program logic model developed via workshops to show the causal links between strategies and anticipated outcomes. Results: A South Australian Government target to increase healthy weight was supported by SA HiAP to develop a cross-government response. Our analysis shows what supported and hindered implementation. A combination of economic and systemic framing, in conjunction with a co-benefits approach, facilitated intersectoral engagement. The program logic shows how implementation can be expected to contribute to a population with healthy weight. Conclusions: The HiAP approach achieved some success in encouraging a range of government departments to contribute to a healthy weight target. However, a comprehensive approach requires national regulation to address the commercial determinants of health and underlying causes of population obesity in addition to cross-government action to promote population healthy weight through regional government action.