Lifestyle, Exercise and Nutrition Study 2 (LEAN 2)

The intervention will be based on the Diabetes Prevention Program weight loss program, which uses a combination of reduced caloric intake, increased physical activity, and behavior therapy. The content of the weight loss program will be similar for the in-person and telephone interventions, but the approach will vary (i.e., in-person vs. telephone counseling). The weight loss intervention will be conducted by a Registered Dietitian, who has training in exercise physiology and behavior modification.