Professor Dr. Sibylle Koletzko studied medicine at the University of Münster, Germany and trained in paediatrics at the University Children’s Hospital in Düsseldorf. In 1980 she worked for 6 months in a Paediatric Department in Moshi, Tansania. From 1986 until 1988, she was a clinical research fellow in Division of Paediatric Gastroenterology at the Hospital of Sick Children, Toronto, Canada with Prof. Peter Durie and Prof. Phil Sherman.

She performed clinical research in cystic fibrosis and inflammatory bowel disease. After her return to Düsseldorf she extended her research to gastrointestinal motility disorders in children.

In 1994 she moved to Munich and became the head of the Division of Paediatric Gastroenterology and Hepatology at the Kinderpoliklinik and since 2002 of the Dr. v. Haunersches Kinderspital at the Ludwig Maximilians University Munich, Germany.

Her current research involves projects in inflammatory bowel disease, Helicobacter pylori infection in children, celiac disease and food allergy. She is one of the principle investigators of the German infant nutrition intervention (GINI) study, in which a cohort of more than 5000 children with and without a hereditary risk for allergy were enrolled and is now followed for 10 years. For her research work, she received several scientific rewards. Currently, she is secretary of committee of Gastroenterology of the European society of Paediatric Gastroenterology and Nutrition (ESPGHAN), and president of the German speaking society of Paediatric Gastroenterology and Nutrition (GPGE).