¹Hospital of Sagunto, Department of Digestive Disease, Sagunto, Spain, ²Lifesequencing–ADM Nutrition, Genomics Laboratory, Paterna, Spain, ³Hospital General de Castellón, Department of Digestive Disease, Castellón, Spain, ⁴Hospital La Fe, Department of Digestive Disease, Valencia, Spain, ⁵Hospital Doctor Peset, Department of Digestive Disease, Valencia, Spain, ⁶Hospital Clínico de Valencia, Department of Digestive Disease, Valencia, Spain, ⁷Hospital General de Valencia, Department of Digestive Disease, Valencia, Spain, ⁸Hospital LLuís Alcanyís, Department of Digestive Disease, Xàtiva, Spain, ⁹Hospital Manises, Department of Digestive Disease, Manises, Spain

Samsung Medical Center, Gastroenterology, Seoul, Republic of Korea

Kyushu University, Department of Medicine and Clinical Science, Fukuoka, Japan

¹Kawasaki Medical School Department of Internal Medicine- Division of Gastroenterology, 1Kawasaki Medical School, Department of Internal Medicine- Division of Gastroenterology, Okayama, Japan, ²Kyoto Prefectural University, Laboratory of Animal Science as a lecturer, Kyoto, Japan, ³Kyoto Prefectural University of Medicine, Division of Gastroenterology and Hepatology, Kyoto, Japan

Microbiology, 1IDIBAPS, Intestinal Bowel Disease, Barcelona, Spain

¹Division of Gastroenterology and Hepatology- McGill University Health Centre, Medicine, Montreal, Canada, ²Farncombe Family Digestive Health Research Institute- McMaster University, Medicine, Hamilton, Canada, ³Division Gastroenterology- College of Medicine- Jacksonville- University of Florida, Medicine, Jacksonville, USA

Gastroenterology, West China Hospital- Sichuan University, Chengdu, China

University of Padua, Department of Surgery- Oncology and Gastroenterology, Padua, Italy

¹Department of Surgery and Cancer, Imperial College London, London, UK, ²Department of Gastroenterology, St Mark’s Hospital, Harrow, UK, ³Imperial College London, Division of Integrative systems medicine and digestive disease, London, UK, ⁴St Mark’s Hospital, Colorectal Surgery, Harrow, UK

Reina Sofía University Hospital, Department of Gastroenterology, Córdoba, Spain

¹GoodGut SL, IBD Department, Girona, Spain, ²Universitat de Girona, Departament de Biologia, Girona, Spain, ³GoodGut SL, Chief Executive officer, Girona, Spain, ⁴Institut d’Investigació Biomèdica de Girona, Digestiu, Girona, Spain, ⁵Hospital Universitari Doctor Josep Trueta de Girona, Aparell Digestiu, Girona, Spain

¹Hospital Universitari Vall d’Hebron, Gastroenterology, Barcelona, Spain, ²Institut de Recerca Vall d’Hebron, Gastroenterology, Barcelona, Spain, ³Unitat de Suport Nutricional, Nutrition, Barcelona, Spain

¹GoodGut, Laboratory, Girona, Spain, ²GoodGut S.L., Project Manager, Girona, Spain, ³GoodGut S.L., Laboratory, Girona, Spain, ⁴GoodGut S.L., Quality, Girona, Spain, ⁵IdIBGi, Gastroenterology, Girona, Spain, ⁶Hospital Universitari Doctor Josep Trueta, Gastroenterology, Girona, Spain, ⁷GoodGut S.L., Chief Executive Officer, Girona, Spain, ⁸GoodGut S.L., Scientific Director, Girona, Spain

¹Kliniczny Szpital Wojewodzki Nr 2 im. Sw. Krolowej Jadwigi w Rzeszowie, Klinika Gastroenterologii i Centralna Pracownia Endoskopii, Rzeszow, Poland, ²Uniwersytet Rzeszowski, Instytut Nauk o Zdrowiu- Kolegium Nauk Medycznych, Rzeszów, Poland

¹Inje University Busan Paik Hospital, Internal Medicine, Busan, Republic of Korea, ²Inje University Haeundae Paik Hospital, Internal Medicine, Busan, Republic of Korea, ³Eunpyeong St. Mary’s Hospital- College of Medicine- The Catholic University of Korea, Internal Medicine, Seoul, Republic of Korea, ⁴Pusan National University School of Medicine & Pusan National University Hospital, Internal Medicine, Busan, Republic of Korea

¹Universidad El Bosque, Cellular and Molecular Immunology Group/ INMUBO, Bogota D.C, Colombia, ²Universdidad El Bosque, Bacterial Molecular Genetics Laboratory, Bogota D.C, Colombia, ³Grastroadvanced SAS, Gastroenterology, Bogota D.C, Colombia, ⁴Hospital Militar Central/Universidad Militar Nueva Granada, Rheumatology and Immunology Department- School of Medicine- Clinical Immunology Group, Bogota D.C, Colombia

¹University Hospitals of Leicester, Digestive Diseases Centre, Leicester, UK, ²University Hospitals of Leicester, Microbiology, Leicester, UK, ³University Hospitals of Leicester, Histopathology, Leicester, UK

¹University Hospitals of Leicester, Gastroenterology, Leicester, UK, ²University Hospitals of Leicester, Microbiology, Leicester, UK, ³University Hospitals of Leicester, Histopathology, Leicester, UK

¹Università del Piemonte Orientale, Department of Pharmaceutical Sciences UNIUPO, Novara, Italy, ²Università degli studi di Trieste, Departement of Chemical and Pharmaceutical Sciences, Trieste, Italy, ³Università degli Studi di Torino, Department of Medical Science, Torino, Italy

¹University Hospital Zurich, Gastroenterology and Hepatology, Zurich, Switzerland, ²Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Cambridge, USA, ³Pharmabiome, Zurich, Switzerland