Fast Twitch. A New Energy Drink from Gatorade. Available in 6 great flavors: Strawberry Watermelon, Cool Blue, Glacier Freeze, Tropical Mango, Orange, Strawberry Lemonade with 200mg caffeine to help ignite power and athletic performance, zero sugar and 100% Daily Value of vitamins B6 and B12. No artificial flavors or colors from artificial sources Fast Twitch is an Official Partner of the NFL and NSF Certified for Sport.