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Unlock your personalised fuelling

Take the guesswork out of your race and training nutrition. Test your carbs like the pros with our science-backed, at-home kit and start seeing results.

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  • Unlock next level performance

    Target your next personal best or goal, feel more energised during races, recover better for training.

  • Reduce the risk of digestive issues

    No more worrying about what will happen on race day. Feel confident in your race nutrition strategy.

  • Access science-backed testing

    Developed by researchers, exercise physiologists and sports nutritionists with decades of experience.
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KNOW YOUR CARBS

Fuel Smarter

We are changing the game and bringing personalised fuelling to athletes at all levels - from elite to everyday,  at home and in the field.

If you’re a cyclist, runner, triathlete, or an all rounder, this test may be for you.

Backed by science. Delivered to your door.

Get your test
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Not sure about your race or training fueling?

No two athletes are the same

Measure directly how much of the carbohydrates you consume during training and racing is actually used by your muscles

This test shows you exactly how many gels, drinks, chews you can take during exercise

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How it works?

  • ORDER

    We will send everything you need, right to your door.

  • TEST

    Follow the instructions and complete your home test. All you need is access to a treadmill or indoor bike (this can be at the gym).

  • RETURN

    Ship your breath samples and metabolic mask back to us in the provided pre-paid return box. We’ll take care of the rest.

  • RESULTS

    You’ll receive your personalised fuelling report, including how much carbohydrate you can burn and how you might tailor your race nutrition to hit this.

  • PERFORM

    Over to you! Now you know your personalised results, it’s time to hit the road, confident in your training and race fuelling.

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Dr Jamie Pugh (PhD): Co-Founder and Exercise Physiologist

Trusted Science

"I've worked with athletes of all levels - from Olympic gold medalists through to everyday people looking to complete their first major endurance event. What I've learnt is that everyone is different and it's not always the Olympians who need more carbs."

Our team are experts in the field, with decades of scientific experience in nutrition and exercise physiology.

Learn More about the science

  • Imo Boddy - Ultra Endurance Runner

    "I was able to adapt my carb intake leading into both the final key sessions of my prep, and on race day, with great success.”

    Instagram 

  • Dr Mike Newell - Senior Lecturer Health, Nutrition and Exercise 

    "Having used Exo’s testing within our performance work, I’ve seen first-hand how the data can enhance understanding and drive improvements. It’s great that Exo are now bringing this level of testing into the hands of more athletes through their at-home approach."

    LinkedIn 

  • Ben Felton - Marathon Runner

    "Before the test, fuelling was the part of racing that caused me the most uncertainty."

    Instagram 
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