Performance Nutrition Digest

Performance Nutrition Digest

What happens to the gut after an ultramarathon? πŸƒβ€β™‚οΈ

Do ultra runners have iron guts?

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Tom Coughlin
Oct 25, 2025
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The Impact of Ultra-Marathon Running on the Gut Microbiota as Determined by Faecal Bacterial Profiling, and Its Relationship with Exercise-Associated Gastrointestinal Symptoms: An Exploratory Investigation

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