Each participant will have 5 visits with a dietitian in the course of 6 months. Participants randomized to receive pedometer feedback will review objectively monitored step-count data during their nutritional counseling sessions and will use the data to set new step-count goals. The primary outcome, weight loss, will be assessed at the sixth and final session at the end of the 6-month intervention. Enhanced pedometers that can monitor step-counts throughout the day and upload time stamped step count data to a central computer will be used to monitor adherence to a walking program.