Professor of Human Nutrition, Norwich Medical School, the University of East Anglia. Her main research interests are mineral metabolism and requirements, in particular iron, and she has published extensively in this field. She has served on a number of national and international advisory committees, including the COMA Panel on Dietary Reference Values, the Scientific Advisory Committee on Nutrition Iron Working Group, the European Food Safety Authority (EFSA) Panel on Nutrition (NDA), the EFSA Health Claims Working Group, and the US NAS Committee on Harmonization of Methods for Estimating Nutrient Intake References. She is currently a member of the Scientific Advisory Group for the New Nordic Nutrition Recommendations (2019-2022), the Technical Advisory Group for Global Anemia Exemplars funded by the Gates Foundation (2020-2022), the UK Food Standards Agency Advisory Committee on Novel Foods and Processes (2020-2023), the Big C Research Advisory Panel, and chair of the FAO/WHO expert group on nutrient requirements for children aged 0-36 months. She was elected a Fellow of the American Society for Nutrition in 2017.