University of Copenhagen - Biotech Research and Innovation Centre, University of the Basque Country - Department of Liver and Gastrointestinal Diseases, Owl Metabolomics, Owl Metabolomics, University of Copenhagen - Biotech Research and Innovation Centre, University of the Basque Country - Department of Liver and Gastrointestinal Diseases, University of the Basque Country - Department of Liver and Gastrointestinal Diseases, Hospital Juan Ramón Jiménez, University of Seville - UCM Digestive Diseases, Pontificia Universidad Católica de Chile - Department of Gastroenterology, University of Copenhagen - Center for Clinical Metabolic Research, University of Copenhagen - Center for Clinical Metabolic Research, Aarhus University - Department of Hepatology and Gastroenterology, Aarhus University - Department of Hepatology and Gastroenterology, Grenoble Université, Students, University of São Paulo (USP) - Department of Gastroenterology, University of São Paulo (USP) - Department of Gastroenterology, Carlos III National Institute of Health - Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health - Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), University of the Basque Country - Department of Liver and Gastrointestinal Diseases and University of Copenhagen - Biotech Research and Innovation Centre