Powerbar IsoActive Red Fruit 1320gDuring sport you lose both water and electrolytes through sweat. Your body also needs electrolytes and carbohydrates in order to enhance water absorption. Additionally you should top up your energy levels before you start and refuel during sport with up to 90g carbohydrates per hour depending on the intensity and duration. Product details Carbohydrate electrolyte solution enhances the absorption of water during physical exercise C2MAX Dual Source Carb