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Old 06-25-2012, 05:29 PM   #61
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Join Date: Aug 2004
Posts: 81

Caffeine has a known pharmacologic diuretic effect. Many believe it is dose dependent and only larger doses do it. I actually think it is true based on personal experience of exposure to high doses. Second aspect is that individual diuretic response may be dependent on person's overall exposure to caffeine. Having said that, a potential diuretic would be the last thing I'd take before expected dehydration of a tennis match. Caffeine, as many above said, provides zero metabolic fuel value.
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