The Diabetes Prevention Program is a structured lifestyle intervention that includes dietary coaching, lifestyle intervention, and moderate physical activity, all with the goal of preventing the onset of diabetes in individuals who are pre-diabetic. The clinical intervention consists of 16 intensive “core” sessions of a curriculum in a group-based, classroom-style setting that provides practical training in long-term dietary change, increased physical activity, and behavior change strategies for weight control. After the 16 core sessions, less intensive monthly follow-up meetings help ensure that the participants maintain healthy behaviors. The primary goal of the intervention is at least 5 percent average weight loss among participants.