Dr Hayley O'Neill

Research interests

Dr Hayley M. O’Neill, PhD, BSc (Biomedical Science) (Hons), RNutr

Dr Hayley O’Neill is a biomedical scientist and nutrition researcher whose work focuses on metabolic health, body composition and cardiometabolic disease prevention, with a particular interest in women's health across the menopause transition. Her research integrates nutritional science, human physiology and clinical research to investigate how dietary and lifestyle interventions influence metabolic health, body composition and long-term cardiometabolic risk.

Her research expertise spans dietary interventions for weight management, obesity and metabolic health, body composition, meal timing, intermittent energy restriction and personalised nutrition. A key focus of her current research is understanding the physiological and metabolic changes associated with midlife and menopause, including their implications for adiposity, lipid metabolism and cardiometabolic disease risk. She is particularly interested in identifying modifiable determinants of cardiometabolic health and developing evidence-based, individualised approaches to prevention.

Dr O’Neill has extensive experience in the design, coordination and delivery of clinical trials, systematic reviews and meta-analyses, and translational nutrition research. Her research encompasses dietary assessment, metabolic outcomes, body composition and cardiovascular risk prediction, with an emphasis on translating emerging evidence into clinically relevant strategies and informing public health and nutrition practice.

She has authored more than 25 peer-reviewed publications and has secured over $800,000 in research funding. Her research has contributed to the evidence base informing dietary interventions for obesity, weight management and cardiometabolic health, and she has established a strong collaborative research profile across nutrition, biomedical science and women's health.

At Bond University, Dr O’Neill contributes to research leadership, higher degree research supervision and research-led teaching. She is also the Women's Research Lead within the Bond University Women and Children in Health and Sport Research Group. Her current research program aims to advance understanding of metabolic health across the female life course, with a particular emphasis on menopause, dietary strategies and the prevention of cardiometabolic disease.