Yerba Maté leaves have long been used in South America to help reduce hunger and fatigue. Higher in antioxidants than green tea, it has an invigorating effect and also increases energy use during exercise. This means you’ll not only feel more active, but the exercise you do will be even more beneficial because you’ll shift even more of those fat stores. Further research has shown Yerba Maté even has the ability to prevent the development of new fat cells2, meaning it can help prevent further weight gain.