Paulinia cupana (guarana) is a Brazilian plant given great prestige in popular medicine, for example as being a potent stimulator of brain functions. The authors assessed the effects of the long-term administration of guarana on the cognition of normal, elderly volunteers. Forty-five volunteers were studied, with a random distribution in three experimental groups: placebo (n = 15), caffeine (n = 15), and guarana (n = 15), in a double-blind study. There were no significant cognitive alterations in these volunteers.
CITATION STYLE
Galduróz, J. C., & Carlini, E. A. (1996). The effects of long-term administration of guarana on the cognition of normal, elderly volunteers. São Paulo Medical Journal = Revista Paulista de Medicina, 114(1), 1073–1078. https://doi.org/10.1590/S1516-31801996000100003
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