Josep Vidal obtained his medical degree from the University of Barcelona. He trained as resident in Endocrinology and Nutrition at Hospital Clínic of Barcelona. He obtained his Ph.D from the University of Barcelona in 1998 following the study of the genetic basis of type 2 diabetes mellitus. He completed his post-doctoral training at the University of Washington. Since 2005, Josep Vidal is acting as Head of the Obesity Unit. He is currently the Director of Institute of Digestive and Metabolic Diseases at the Hospital Clínic of Barcelona. Dr. Vidal’s main interest of research is the role of gastrointestinal hormones in the type 2 diabetes mellitus.