Because of the strong link between excess weight and insulin resistance/type2 diabetes, weight loss, through a combination of healthy eating and exercise, is the primary focus of diabetes prevention Prevention Program (DPP) found that in a diverse group of overweight people with impaired glucose tolerance, exercise, and behavior modification decreased the incidence of diabetes by 58% (DPP Research Group, 2002). Study participants walked at moderate intensity, an average of 150 minutes/week, and decreased their intake of fat and calories. Average weight loss was a modest 5% to 7% of initial weight, or about 15 pounds.