Professor Kassir was born in Tyr (Lebanon) in 1983 to a renowned family of doctors. Graph Professor Radwan Kassir is a digestive and bariatric surgeon in the Digestive, Oncology and Bariatric Surgery Department at Saint-Denis University Hospital (La Réunion, France), where he is the head of the department. Professor Kassir has often taken the initiative of working with industry in the development of approaches useful to the field bariatric surgery (Refill, CMI-NOV, horus care).