With a legacy over 50 years in the making, Gatorade Thirst Quencher sports drinks are backed by science with electrolytes to help replace what is lost in sweat. Gatorade Thirst Quencher sports beverage has the #1 proven electrolyte blend to help athletes get the most out of their performance. Gatorade Thirst Quencher contains sodium and potassium electrolytes. This is because sweat contains more than just water - when athletes sweat, they also lose electrolytes such as sodium and potassium. Unlike other beverages that are not scientifically formulated with the recommended amount of electrolytes for the active occasion, Gatorade is lab-tested to ensure it helps replenish the electrolytes lost in sweat while maintaining thirst so athletes will adequately ingest enough fluid and electrolytes to stay well-hydrated.