Four Loko has made its way into the world of alcohol energy drinks and has become a controversial drink. It was banned from Utah in October 2010 and subsequently became a big hit worldwide. It is made with alcohol and sugar, artificial and natural flavors, FD&C red 40, and other ingredients. The beverage is sold in two 3.5-ounce cans and has different levels of alcohol by volume. In the past, Four Loko was a malt liquor-based, caffeine-infused alcoholic beverage with ingredients such as guarana and taurine.