http://www.smart-energy-drink.com Once a traditional South American tribal drink, yerba mate is now sweeping the world as a new and healthy energy drink, offering everyone a refreshing alternative to coffee and tea. Yerba mate is a gently-caffeinated substance and is prized because of its ability to give that reviving kick without the jitters. And as its popularity continues to grow, it has become much easier to get our hands what has been a jungle secret for centuries.