Red Bull Energy Drink is a functional beverage that vitalizes body and mind. Appreciated worldwide by top athletes, busy professionals, college students, and travelers on long journeys. Red Bull Sugarfree is Red Bull Energy Drink without the sugar, meaning we swapped the sugar with Aspartame and Acesulfame K so it still tastes sweet. Red Bull was the first global energy drink brand to address the consumer need for a sugar-free/diet variety. Red Bull Energy Drink gives you wiiings whenever you need them.