Dr. Javier Osorio, a distinguished bariatric and metabolic surgeon, stands as a leading figure at the Obesitas Bariatric Surgery Clinic in Barcelona, Spain. Renowned for his exceptional expertise, Dr. Osorio specializes in the comprehensive treatment of multiple benign and malignant pathologies, including gastroesophageal reflux, hiatal hernia, gastric and colon tumor pathology, diverticulitis, and urgent abdominal pathology. With a stellar educational background, he earned his Degree in Medicine and Surgery from the University of Barcelona in 1997, followed by specialization in General Surgery and Digestive Systems at the Hospital of l’Hospitalet de Llobregat, University of Barcelona, in 2003. Dr. Osorio's professional journey is marked by a wealth of experience and a commitment to advancing surgical care. Currently serving as the head of the Bariatric and Metabolic Surgery Unit at the University Hospital of Bellvitge, University of Barcelona, and holding the position of 2nd Chief of Metabolic and Bariatric Surgery at the Obesitas Clinic, he has consistently demonstrated clinical excellence. His career includes diverse roles, from working as a Deputy at the General and Digestive System Surgery Department at Hospital Terrassa Mutual to serving as an Assistant at esteemed institutions such as the Hospital Santa Creu in Sant Pau (Barcelona) and the Hospital Center Hôpital Universitaire de Montpellier in France. Dr. Osorio's commitment to the advancement of surgical knowledge is reflected in his active memberships in key scientific societies. He is a proud member of the Spanish Society for Obesity Surgery (SECO) and the International Federation for the Surgery of Obesity (IFSO). Notably, he served as the President of the Catalan Society of Medical-Surgical Endoscopy from 2015 to 2019, contributing significantly to the field. Engaged in impactful research projects, Dr. Javier Osorio has delved into various areas, from exploring complications and mortality in emergency digestive surgery during the COVID-19 pandemic to investigating the impact of frailty on postoperative results of gastric cancer surgery. His dedication to research, education, and clinical practice solidifies his standing as a respected and accomplished surgeon in the realm of bariatric and metabolic surgery.