Nutrition
Ultramarathon Gut Training Protocol
Ultramarathon gut training protocol ramps race-day carb and fluid rates on long runs so the stomach adapts before event week.
Ultramarathon gut training protocol gradually increases carb and fluid rate on weekly long runs—same gel brands and drink mixes planned for race day. Start at tolerable grams per hour, add five to ten every two weeks while GI stays calm.
Practice eating while breathing hard on uphills. Night sessions and heat both stress the gut; include them before A-races.
Common questions
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How long does gut training take before a hundred-miler?
Most need six to ten weeks of progressive long-run fueling. Taper week keeps familiar products only—no new flavors or brands.
Related terms
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