GUTR

Gut Training for Runners

GUTR

Train your gut. Run your race.

Your legs won't quit.
Make sure your stomach doesn't either.

Every runner hits a wall. But for most of us, it's not our legs that give out first — it's our gut. Nausea, cramps, gels that just won't sit right. Race day shouldn't feel like that.

Why we built this

At the London Marathon, I hit the wall at 28k. And instead of soaking in the atmosphere of one of the best marathons in the world, it became a blurred, painful slog — the finish line should be a moment, not a survival experience.

The reason? I hadn't fuelled properly. And everywhere I looked, the advice was the same: “you need to train your gut.” Great. But nobody was telling you how.

How much? How often? When should you start? Does your weight matter? Your pace? Your age? What about hydration? GUTR answers all of it — a week-by-week plan built around your body, your gel, and your race. So your finish line looks a little different to mine.

What you'll get

A week-by-week fuel plan built around you

Every training session mapped with exactly how many gels, when to take them, and how much water — based on your weight, pace, and chosen gel.

Timing and water, down to the minute

No guessing. Each session tells you when to take your first gel, how far apart the rest should be, and how much to drink — including an electrolyte guide based on your sweat rate.

A gradual build-up so race day isn't a shock

You start with less and build week by week — training your stomach the same way you train your legs.

A coach who reads your long runs and adjusts your plan

Check in after each long run. Your coach reads your feedback, answers your questions, and changes your plan if something isn't sitting right.

What you'll need

Your gel brandRace name & dateTarget finish timeWeight & heightFitness levelTraining plan (optional)

Takes about 2 minutes to fill in.

Free. No account needed.

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GUTR saves your plan to your device using local storage — no tracking cookies. We collect your name, email, and training data to power your personalised coaching. Privacy Policy