Mark has 30 years experience working in food policy at local, national and international levels. As Director of the University's Food Policy Unit, Mark's research interests focus on: food systems and health - in particular protecting food security in the context of environmental sustainability challenges; obesity prevention; and the politics of food fortification and dietary guidelines. Mark teaches at undergraduate and postgraduate level in food policy and food regulation and is the coordinator of the University's postgraduate public health nutrition programme. He is a regular presenter at national and international conferences and has published widely. Mark is a technical advisor to the World Health Organization, a Council Member of the World Public Health Nutrition Association, a member of Food Standards Australia New Zealand's Consumer and Public Health Dialogue and the Australian National Health and Medical Research Council's Dietary Guidelines Working Committee.