Olle Ljungqvist MD, PhD, trained at the Karolinska Institutet serves as Professor of Surgery, Örebro University, Sweden. Dr Ljungqvist has chaired international societies including ESPEN and IASMEN in the ISS, co founded and chairs the ERAS® Society. He proposed preoperative carbohydrate treatment. He studies surgical stress metabolism and nutrition and ERAS, publishing approximately 300 original contributions, international guidelines, textbooks, book chapters and reviews. He delivers about 20 main lectures worldwide annually.