Thread: Do energy drinks really work?
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Old 07-08-2011, 01:44 PM #8
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Join Date: Oct 2009
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8 oz of red bull has 80mg caffeine

7oz coffee has:

Drip 115-175
Brewed 80-135
Instant 65-100
Decaf, brewed 3-4
Decaf, instant 2-3
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