Pierre Dukan is a French nutritionist and physician best known for creating the Dukan Diet, a high-protein, low-carbohydrate weight loss plan. He developed this diet in the early 2000s, emphasizing the consumption of lean proteins while restricting carbohydrates and fats. The diet gained popularity for its promise of rapid weight loss and has been followed by many around the world. Dukan's approach consists of four phases: the Attack phase, the Cruise phase, the Consolidation phase, and the Stabilization phase. Each phase has specific dietary guidelines aimed at helping individuals lose weight and maintain their results. His work has sparked discussions about diet and nutrition, influencing various other weight loss programs.