Antonio Vidal-Puig (born Valencia, Spain June 12, 1962) is a Spanish medical doctor and scientist who works as a Professor of Molecular Nutrition and Metabolism at the University of Cambridge (UK), best known for advancing the concept that pharmacological targeting of brown fat may serve to treat overweight and obesity in affected individuals,[1] as well as for introducing the concept of adipose tissue "expandability" as an important factor in the pathogenesis of insulin resistance in the context of positive energy balance. His published work focuses on areas such as adipose tissue metabolism and lipotoxicity, regulation of insulin secretion, and the pathophysiology of metabolic syndrome, obesity, and type 2 diabetes.[2][3][4] In April 2024, he was granted the rank of doctor honoris causa from the King Juan Carlos University, Madrid.[5]