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A member asked:
How effective is guarana for increased energy?
A doctor has provided 1 answer
Guarana is: A ubiquitously served beverage in brazil, a sweet pleasant gingerale like beverage. It is in the maple family, produces caffeine in its berries, a natural repllant/toxin to predators, but like other caffeines, can cause nervousness, difficulty sleeping, fast heart rates. It is now a darling in "energy drinks".
Answered 8/17/2012
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