GU Energy | Energy Drink MixCreated for athletes, GU Energy Drink Mix delivers a great tasting source of complex and simple carbohydrates that use non competing pathways to help maximise absorption while diminishing stomach distress. Each 100 calorie serving also contains sodium, the primary electrolyte lost in sweat, to help maintain fluid balance for optimal hydration. How to use: Mix 2 scoops with 473ml or 3 scoops with 710ml of water. Shake well. Hydrate before activity.