Nutrition
Diarrhea Predominant IBS Fueling
Diarrhea predominant IBS fueling manages meal size, caffeine, polyols, and session timing—soluble fiber and tested gels while replacing fluid losses after loose stools.
Diarrhea predominant IBS fueling limits meal size before hard sessions, spreads carbs across the day, and watches caffeine, sorbitol gels, and high-fat race foods that hurry transit. Soluble fiber like oats may firm stool for some; excess insoluble fiber or magnesium can worsen urgency.
Short low-FODMAP trials clarify fermentable triggers; reintroduction still matters for long-term carb options. Hydration with electrolytes replaces losses after loose stools.
Common questions
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Are sugar-free sports products risky for IBS-D?
Often yes—polyols in gels and gum concentrate in the gut. Test labeled products in training weeks, not on race morning.
Related terms
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