Nathalie M. Delzenne, Full Professor, is President of the Louvain Drug Research Institute and leads the Research Group in Metabolism and Nutrition at the Université catholique de Louvain (UCLouvain, Belgium). Nathalie Delzenne has been a pioneer in the discovery of nutrients (prebiotics) targeting the gut microbiota to control nutritional disorders (obesity and cardiometabolic diseases, cancer cachexia, addiction to alcohol). She has been nominated as a Highly Cited Researcher (Thompson Reuter) yearly from 2016. She has published more than 350 papers, as first or last author. She has been involved in many international projects in nutrition and health related to the microbiota (FP7 MyNewGut project; ERA-HDHL FiberTAG project). She has been awarded international prizes such as the Lucien Dautrebande Award in pathophysiology (2016). She has been invited as speaker in more than 50 congresses for the last 5 years, including Keystone symposia (one as scientific organizer in 2018), Sir Cuthbertson lecturer at ESPEN (European Society for Clinical Nutrition and Metabolism) (2019), International Congress in Obesity, European Congress for the Study of Diabetes... She is member of the Royal Academy of Medicine in Belgium and is a Founding member and Past-President of the Belgian Nutrition Society. She has been involved as an expert in many scientific evaluation committees. She is currently chair of the Scientific Committee of ESPEN.