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1: Exerc Sport Sci Rev. 2007 Jul;35(3):135-40.Click here to read Links

Caffeine, fluid-electrolyte balance, temperature regulation, and exercise-heat tolerance.

Department of Kinesiology, Human Performance Laboratory, University of Connecticut, CT 06269-1110, USA. lawrence.armstrong@uconn.edu

Dietitians, exercise physiologists, athletic trainers, and other sports medicine personnel commonly recommend that exercising adults and athletes refrain from caffeine use because it is a diuretic, and it may exacerbate dehydration and hyperthermia. This review, contrary to popular beliefs, proposes that caffeine consumption does not result in the following: (a) water-electrolyte imbalances or hyperthermia and (b) reduced exercise-heat tolerance.

PMID: 17620932 [PubMed - indexed for MEDLINE]