No Evidence of Dehydration with Moderate Daily Coffee Intake: A Counterbalanced Cross-Over Study in a Free-Living Population

  title={No Evidence of Dehydration with Moderate Daily Coffee Intake: A Counterbalanced Cross-Over Study in a Free-Living Population},
  author={Sophie C. Killer and Andrew K. Blannin and Asker E. Jeukendrup},
  journal={PLoS ONE},
It is often suggested that coffee causes dehydration and its consumption should be avoided or significantly reduced to maintain fluid balance. [] Key Method In a counterbalanced cross-over design, 50 male coffee drinkers (habitually consuming 3-6 cups per day) participated in two trials, each lasting three consecutive days. In addition to controlled physical activity, food and fluid intake, participants consumed either 4×200 mL of coffee containing 4 mg/kg caffeine (C) or water (W).

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