Yerba mate is a species of the holly genus, used to make the beverage known as mate in both Spanish and Portuguese. It is traditionally consumed in central and southern regions of South America, primarily in Paraguay, as well as in Argentina, Uruguay, southern and central-western Brazil, the Chaco region of Bolivia and southern Chile. Yerba mate can also be found in various energy drinks on the market today.
Yerba mate has been claimed to have various effects on human health and these effects have been attributed to the high quantity of polyphenols found in mate tea. Research has found that yerba mate may improve allergy symptoms and reduce the risk of diabetes mellitus and high blood sugar in mice.
Mate also contains compounds that act as an appetite suppressant and possible weight loss tool, increases mental energy and focus, improves mood, and promotes deeper sleep; however, sleep may only be affected in people who are sensitive to caffeine.