Yerba mate contains:
The Pasteur Institute and the Paris Scientific society in 1964 were interested in this healthy source of vitamins and did a thorough study of its properties. The investigators concluded "it is difficult to find a plant in any area of the world equal to mate in nutritional value" and that yerba mate contains "practically all of the vitamins necessary to sustain life." In addition, results from a study done by researchers at the University of Madrid assert a high content of mineral elements, especially K, Mg, and Mn, in mate. They considered those findings “to be of great relevance” to the nutritional value of mate infusions.
Yerba mate is more nutritious than green tea:
Yerba mate has been used as a base for herbal medicines in South America for centuries, and the plant’s benefits and therapeutic properties have recently been verified by a number of scientific studies. The chemical components of yerba mate are similar to those found in green tea; however, yerba mate is more nutritious than green tea.
Of the six commonly used stimulants in the world: yerba mate, coffee, tea, kola nut, cocoa and guarana, yerba mate triumphs as the most balanced, delivering both energy and nutrition.