Semina Michalopoulou is a Research Assistant at the Great Ormond Street Institute of Child Health. She has a bachelor’s degree in Dietetics and Nutritional Science from the Harokopio University of Athens. During the final year of her studies, she completed 3 internships: in a hospital, in a freelance nutritionist office and in a research laboratory. Subsequently, she studied at the University of Glasgow and she obtained her master’s degree in Human Nutrition with specialisation in public health nutrition. During her summer dissertation, she analysed big survey data to assess the impact of the combination of breastfeeding and formula feeding on breastfeeding duration and later lactational issues. After the completion of her master’s, she worked as a research intern at HealthLumen. During that time, she worked closely with the epidemiology group and she assisted with literature reviewing, epidemiological data collection, cost-effectiveness analysis and report writing. Semina’s role in the Obesity Policy Research Unit (OPRU) is to support and lead projects that inform policy for children and young people.