Glycemic Index (GI) is something that you may see thrown around in Paleo jargon from time to time. When you consume carbohydrates, your body turns them to glucose, thus creating a rise in blood sugar. The more that food is processed, the faster it breaks down, alternatively, the food that is less processed breaks down slower. The GI measures the rate that food breaks down in the body. In charts, you will typically see it measured as low, medium, or high. Most bread, grains, crackers, muffins, cake…high GI. Fruit and veggies, low GI.
What does this mean to me? I that we should be mindful of significant spikes in blood sugar over a short period of time. This should be avoided if possible. Below is a simple chart with a few different food items and their low, medium, or high GI assignment. As you can see, some low GI foods are not Paleo, and conversely, some Paleo foods have a high GI.