GO FAST! LIGHT ENERGY SUPPLEMENT 16oz Can / 24 Can Case. A Superior, Premium Energy Drink. Go Fast found a way to bring you the benefits of our Original in a Light formula without the "diet" after-taste. Go Fast was formulated with valuable input from athletes of all kinds who wanted the most functional and best tasting energy drink. Go Fast gives you a longer, smoother, and more sustained energy boost. Without the crash or jittery feeling often associated with other energy drinks. As always, Go Fast contains no preservatives, no aspartame, and no high fructose corn syrup.