Nutrition
Carbohydrate Mouth Rinse
Swishing carb drink without swallowing may boost performance in short fasted efforts—modest effect; real fuel still wins for long sessions.
Carbohydrate mouth rinse is swishing a sports drink without swallowing during fasted or GI-sensitive efforts to activate oral receptors linked to performance in some studies. Effects are modest and person-specific; races still need real fuel when duration exceeds about an hour.
Not a substitute for hydration or sodium.
Common questions
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Does mouth rinse replace eating carbs during a race?
No—for events over roughly sixty to ninety minutes, ingest carbs and fluid. Rinse is a niche tool for GI-sensitive or very short high-intensity trials.
Related terms
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