Hania Szajewska, MD, is Professor and Chair of the Department of Paediatrics at the Medical University of Warsaw. Since 1 March 2014, she has been serving as the Editor-in-Chief (Europe) of the Journal of Pediatric Gastroenterology and Nutrition.

Prof. Szajewska has broad interests in paediatric nutrition but her research focuses on probiotics and prebiotics, the effects of early dietary interventions on later outcomes, acute and chronic diarrheal diseases, and coeliac disease. She is or has been actively involved in several European Union-funded projects (e.g., PREVENTCD; NUTRIMENTHE; EarlyNutrition). She is an enthusiastic advocate for the practice of evidence-based medicine.

Prof. Szajewska served as a member of the Council of the European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN), and more recently as the General Secretary of ESPGHAN. She also served as a member and then as the Secretary of the ESPGHAN Committee on Nutrition. Currently, she serves as the co-chairperson of the ESPGHAN Working Group on Probiotics and Prebiotics, and the chairperson of the ESPGHAN Working Group on Outcomes in Nutrition Trials.

Prof. Szajewska has published more than 200 publications and 25 book chapters. Citations 5144; Hirsh index 43 (Web of Science, February 2015).