GU Energy Gel contains maltodextrin, the best complex carbohydrate for delivering energy to working muscles. Also contains the optimal balance of carbohydrates for the body during exercise: 80percen complex/20percen simple. The balance of maltodextrin and fructose delivers a quick rise in blood sugar and maintains that glucose level for up to 45 minutes during exercise. Flavors (24 gels per box): Vanilla Bean (VAN), Chocolate Outrage (CHO), Orange Burst (ORF), Just Plain (CLR), Tri-Berry (BRF), Espresso Love (JAV), Lemon Sublime (LMN), Strawberry Banana (BST), Multi-Pack (MUL)..