Fiber is a carbohydrate, as the Joslin Diabetes Center factors out, but because your body can't break it down, it does not have an effect on your blood sugar levels. While it can be helpful to know a meals's glycemic index and glycemic load, understanding your personal physique is extra necessary, Heidi Karner, RDN, a dietitian at Harvard's Joslin Diabetes Center, points out. During digestion, your body breaks them down right into a simple sugar known as glucose, which is then absorbed into your bloodstream earlier than being shuttled into your physique's cells with the help of a hormone known as insulin, in accordance with the Mayo Clinic. For example, I may plan to walk an hour, and then it rains, and that i don’t walk. This glucose is then used as energy all through the day