Nutrition
Sodium Gut Absorption Running
Sodium gut absorption running pairs salt in fluids with carb uptake during long efforts—too little sodium with high carbs often worsens bloating and sloshing.
Sodium gut absorption running links adequate salt in fluids to moving water and carbs across the intestinal wall during long efforts—too little sodium with high carb intake can worsen bloating and sloshing. Sweat-heavy athletes often need 300–600 mg sodium per liter or more in heat, individualized by testing.
Plain water alone is a common gut mistake on marathons.
Common questions
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Can extra sodium fix all GI issues on runs?
It helps fluid and carb absorption but cannot override osmotic overload, NSAIDs, or untrained fructose doses. Use sodium as part of a rehearsed race plan.
Related terms
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