Replenish your electrolytes and stay hydrated during prolonged exercise with GU Hydration Drink Tabs. Each serving contains 320 mg of sodium and 55 mg of potassium to help replenish the minerals lost through sweat. Plant-based Stevia and Xylitol are added for a light sweetness and to reduce gastrointestinal distress. Get the most out of your workouts with GU Hydration Drink Tabs.