GU Original Energy Gels contain carbohydrates for energy, electrolytes for hydration, and BCAA's to help protect working muscles. Fast-acting and long-lasting carbohydrates - from maltodextrin and fructose - allow you to quickly digest more fuel without stomach upset. Our gels contain sodium, the electrolyte you lose when you sweat. Always take gels with a few sips of water to help your body efficiently absorb your fuel. Our BCAA blend helps protect muscles from breakdown, contributes to energy production, and helps prevent mental fatigue. † † These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Birthday Cake gives everyone permission to indulge and celebrate out on the trails. This flavor is delicious, indulgent, and takes us back to our childhood days of sneaking a swoop of cake batter without getting caught by mom or dad. Created to celebrate our 25th birthday, here’s to 25 more!