Disclaimer: The products and data discovered on this site are usually not meant to exchange skilled medical recommendation or treatment. They'll provide recommendation and teach you methods to depend carbohydrates and how to regulate your insulin. The primary reason that marathoners carbo-load (or eat a number of carbohydrates) before the race is to retailer up glycogen. It boils all the way down to stored vitality: glycogen and fatty acids. For these runners you see limping across the finish line, you may assume their our bodies have tapped into fatty acid reserves