Associate Professor in Human Nutrition, Principal Investigator at Trinity College Dublin. I have a strong research profile in nutrition, vitamin D, inflammation, ageing, malnutrition, and extensive expertise in randomised controlled trials. With 25+ years of experience in the field, I am the first Irish recipient of the Nutrition Society UK Cuthbertson medal. I have held national and international committee roles, including in the Nutrition Society (UK) and the Royal Irish Academy. I am a former Editor-in-Chief of Proceedings of the Nutrition Society, doubling its impact factor under my tenure. https://orcid.org/0000-0002-1152-979X