Thus, increasing the body's metabolism rate, just slightly. Fat does not do this. Carbohydrates only lower the thermic responses when a person is insulin resistant. In this case, weight loss and aerobic activy are much more important than adjusting nutrient intake. If you weren't aware, aerobic exercise is the most effective method of lowering and normalizing insulin production in insulin resistant people.
Weight loss allows the cells to more easily recognize insulin so that less insulin is required.
Regular physical activity is important because muscle cells are the biggest users of insulin. Decreasing the muscle's insulin requirements through exercise cuts down on insulin resistance to a large extent. This means that insulin can bind more easily to the cell receptors and be more effective in promoting glucose uptake. Now, despite what Sears and others claim, most Americans are not insulin resistant. So insulin problems should not be a factor for the majority of us.