Nutrition
Coffee Hydration Pre-Session
Coffee hydration pre-session adds water alongside caffeine—coffee does not replace fluid before sweat, especially in heat or double-session days.
Coffee hydration pre-session means treating caffeine as additive to—not replacing—water before sweat: one coffee plus sixteen to twenty ounces water in the hour before training, more in heat. Coffee is mildly diuretic at rest but habituated athletes often retain fluid normally during exercise.
Dark urine after morning cups signals under-hydration, not a need for more espresso.
Common questions
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Does coffee dehydrate you before the gym?
Moderate coffee with adequate water rarely hurts performance in habitual drinkers. Still drink extra fluid—especially before heat or long sessions—instead of counting coffee as hydration.
Related terms
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