Made with Superfruits Electrolytes Complex Carbs B Vitamins Caffeine from Yerba Mate USDA Non GMO Project Verified The Probar Chew for: Speedy, Sustained Energy Ready, set, Bolt. These chews step up your game right when you need it. They're packed to power you from morning workouts to race days— and they're loaded with electrolytes, B vitamins, antioxidants and complex carbs for fast fuel-ups that last through the home stretch.