Yerba mate is considered the national beverage of several South American countries, including Brazil, Paraguay, Argentina and Uruguay. In fact, taking a break to refresh with yerba mate tea is as commonplace in these places as coffee drinking is to Americans.
Yerba mate contains several active compounds that make the herb flavorful and nutritious. Like green and black tea, yerba mate contains antioxidant flavonoids, such as kaempferol, quercetin and rutin. The herb also provides calcium, iron, magnesium, manganese, phosphorus, potassium and selenium and vitamins A, C, E, B1, B2, B3 (niacin) and B complex.