01274naa a2200169 a 450000100080000000500110000800800410001902400290006010000140008924500820010326000090018552007690019465000130096365000210097670000180099777300890101518896092021-03-25 2010 bl uuuu u00u1 u #d7 a10.1093/ecam/nem1622DOI1 aSMITH, N. aGuarana's journey from regional tonic to aphrodisiac and global energy drink. c2010 aGuaraná (Paullinia cupana H.B.K., Sapindaceae) is a rainforest vine that was domesticated in the Amazon for its caffeine-rich fruits. Guaraná has long been used as a tonic and to treat various disorders in Brazil and abroad and became a national soda in Brazil about a century ago. In the last two decades or so, guaraná has emerged as a key ingredient in various ?sports? and energy drinks as well as concoctions that allegedly boost one's libido. For some time, guaraná's high caffeine content was thought to be a detriment because of health concerns about excessive intake of caffeine-rich drinks. But it is precisely this quality, and the fact that it has a mysterious name and comes from an exotic land, that has propelled guaraná into a global beverage. aGuaraná aPaullinia Cupana1 aATROCH, A. L. tEvidence-Based Complementary and Alternative Medicinegv. 7, n. 3, p. 279-282, 2010.