Impact of Fluid Milk on Post-meal Glycemia and Insulinemia in Overwt/Obese Adults

The broad aim of the proposed research is to evaluate the effects of consuming milk and non-milk beverages with a breakfast meal on postprandial glucose and insulin responses in overweight and obese adults with varying levels of glucose tolerance (normal, pre-diabetic, type 2 diabetes). The investigators expect the consumption of fluid milk with breakfast to decrease the postprandial glucose response relative to other non-milk beverages (orange juice and sweetened coffee). Furthermore, the investigators expect that there will be no difference in the postprandial glucose or insulin response between varieties of fluid milk (skim, low-fat, and whole).