Yerba mate can be considered a fountain of nutrients as this traditional South American beverage contains practically all the vitamins necessary to sustain a healthy life. Yerba mate has become a popular choice in health food stores as it is a good source of not only vitamins but also minerals, and nutrients. Yerba mate contains vitamin A, C, E, B1, B2, B5, niacin (B3) as well as important minerals such as calcium, magnesium, zinc, iron, manganese, selenium, potassium, and phosphorus.