Shake This is a turnkey operation aimed at helping fitness centers make a larger profit. Shake This is a protein shake bar usually located inside area fitness centers. With hundreds of facilities located throughout the country Shake This has created their own shakes using only the best ingredients to create great tasting protein shakes and smoothies. Some of their shakes are called Purple People Eater, Candy Bar Craving, Candy Apple and Chocolate Peanut Butter, just to name a few. If you ever come across one in your area try one you’ll be pleasantly surprised.