The aim of this program is to inform new methods and approaches for reducing obesity-related chronic diseases (OCDs) among socially disadvantaged populations in Australia. Available prevention programs focus on mainstream communities, yet, these sub-populations experience an excess in disease burden related to such chronic conditions. I will test and evaluate prevantion models to strengthen and overcome impediments to prevention of OCDs among disadvantaged populations and for inclusion in large scale prevention programs at population-level. These prevention models will improve the evidence base in this field as well as inform public health policy and practice in Australia (and other industrialised countires)