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Caffeine
Caffeine, sometimes called 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.
Note: The above text is excerpted from the Wikipedia article "Caffeine", which has been released under the GNU Free Documentation License.
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December 16, 2024
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