http://www.netvouz.com/narky/tag/guarana?feed=rss narky's bookmarks tagged "guarana" on Netvouz http://en.wikipedia.org/wiki/Caffeine Caffeine (sometimes called guaranine when found in guarana, mateine when found in mate, and theine when found in tea) is a xanthine alkaloid found in the leaves and beans of the coffee tree, in tea, yerba mate, guarana berries, and in small quantities in cocoa, the kola nut and the Yaupon holly. In plants, caffeine acts as a natural pesticide that paralyzes and kills many insects feeding upon them. Lifestyle > Drugs narky Thu, 01 Jun 2006 06:46:24 GMT