The Glycemic Impact Diet is based on the premise of how certain foods affect your insulin levels and thus the storage of fat in your body, particularly in reference to carbohydrates. Glycemic Impact Diet Recipes are designed to replace simple carbohydrates, such as white sugar and flour, with more complex carbohydrates, such as whole grains, and vegetables. Glycemic Impact Diet Recipes intentionally use foods with a lower glycemic impact to help control and regulate the body's insulin response. When higher glycemic impact food are called for, they are used in smaller portion sizes in order to keep their glycemic impact relatively low.