High 5 energy source summer fruits 1000g energysource is a scientifically formulated carbohydrate and electrolyte sports drink for use during exercise research on traditional sports drinks suggests that you can only consume 60g carbohydrate per hour using energysource with 21 fructose you can consume substantially more carbohydrates up to 90g per hour that means you get 50 more energy energysource helps you to sustain your performance during endurance events and keeps you hydrated by en