During intense exercise, you should provide up to 90g of carbohydrates per hour before and during exercise. PowerGel Original is convenient during exercise due to its compact package size and non-chewing consumption. It contains a combination of various carbohydrate sources, making it a classic choice for athletes since 1996. Improved packaging: easy to open. The C2MAX dual-source carbohydrate blend contains a special ratio of glucose and fructose sources. It contains sodium, the main electrolyte lost through sweat. Espresso flavor: contains 53 mg of caffeine per packet.