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Microbial gains: How your gut health affects your cycling performance

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Microbial gains: How your gut health affects your cycling performance

Tristan Rees investigates how the gut microbiome is becoming professional cycling's newest performance frontier, from stool samples to seasonal health strategies.

By Tristan Rees

Illustration by Paula Esteve

21 FEBRUARY 2026 | UPDATED 11.47 PM BST

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Rouleur Issue 144 — The Tour Issue
In printIssue 144

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The Tour Issue

Le Tour de France: a race defined by colour, passion and history, whose drama and romance continue to shape the identity of cycling’s greatest stage.