Pediatric health care providers are ideally situated to address this problem, especially since children are seen frequently for preventive care during the early years when intervention may be more likely to yield long-term change. However, most pediatric providers do not have the needed training to manage obesity effectively. This project will use the chronic care model to foster the effectiveness of an office-based intervention aimed at altering dietary intake and physical activity for children whose BMI reflects overweight and their parents. With the support of the health care system (through new reimbursement strategies), office redesign (assignment of tasks to the health assistant, physician and behavioral interventionist), self-management techniques (patient training) and enhanced community resources, a successful program for improved nutrition and physical activity will be built.