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GURU Claim: "GURU is an effective energy drink
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GURU
Claim: "GURU is an effective energy drink that naturally gets you going."
Ingredients: organic juices, guarana seed extract, echinacea flower extract, panax ginsent root extract, ginkgo biloba leaf extract(Credit: AP)

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Energy drinks' content

Here are ingredients that make energy drinks tick, plus performance claims from their websites and cans.