1. Healthy Weight Clinic, MQ Health Macquarie University Hospital Sydney New South Wales Australia
2. Department of Clinical Medicine, Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia
3. Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, Charles Perkins Centre The University of Sydney Camperdown New South Wales Australia
4. Department of Health Sciences, Faculty of Medicine and Health Sciences Macquarie University Sydney New South Wales Australia
5. Department of Surgery, School of Medicine University of Notre Dame Sydney New South Wales Australia