Dr Stefanie Vandevijvere is a Senior Public Health Nutrition Scientist at the Scientific Institute of Public Health (Sciensano) in Belgium and Honorary Senior Research Fellow at the University of Auckland in New Zealand. Her research focuses on nutrition policies for obesity prevention globally. Her work aims to support the development and implementation of policies to effectively and equitably improve the quality of population diets. In particular she has an interest in the role of food environments in determining people’s dietary habits and how to hold governments and food businesses to account for their actions to create healthy food environments to effectively reduce obesity. She is a member of the leadership team of the International Network for Food and Obesity/NCDs Research, Monitoring and Action Support (INFORMAS) and fellow for the Lancet Commission on Obesity. She is leading the implementation of the Healthy Food Environment Policy Index (Food-EPI) at the global level. She is Deputy Editor for the journal Public Health Nutrition. She is a member of the working group on nutrition and food safety of the Superior Health Council in Belgium and a Board member of the Belgian Nutrition Society.