November 20, 2014 Control Blood Sugar With the Glycemic Index Diet The low glycemic index (GI) diet centers around a taxonomy of carbohydrates that classifies some foods as healthier than others. Proponents argue that the GI diet can help you lose weight and ward off chronic illness — without counting calories or cutting carbohydrates. The underlying premise behind the GI diet claims that your body metabolizes different carbohydrates at different rates. A carbohydrate that is consumed too quickly can cause unhealthy spikes in blood sugar. The diet purports that a healthier diet is composed of foods that will release sugar slowly and evenly. If you think the GI stands for good idea, here is a guide to the basics of a low glycemic index diet: