
That Triathlon Show Carbohydrate intake in racing - a case for going very high with Aitor Viribay Morales (Astana Pro Team) | EP#269
Aitor Viribay Morales is a performance nutritionist at Astana Proteam (a World Tour cycling team) with a background in science and academia. In this interview we discuss his research findings and practical experience with ingesting really high amounts of carbohydrate (up to 120 g/h) in races, and the effects such high-carb strategies can have.
IN THIS EPISODE YOU'LL LEARN ABOUT:
-Aitor's studies in mountain marathon runners on high-carbohydrate (up to 120 g/h) intake during racing and its effects
-Performance effects, recovery effects, and muscle damage effects of high-carbohydrate intake in races
-Is there not an absorption rate limit of 90 g/h as we have been told?
-How to train the gut to absorb 120 g/h of carbohydrate
-How do the potential benefits of high-carbohydrate intake in racing relate to training?
-Metabolic flexibility, and the height and width of the fat oxidation curve
-Practical takeaways
SHOWNOTES:
https://scientifictriathlon.com/tts269/
SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE:
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LINKS AND RESOURCES:
- Glut4Science website, Twitter and Instagram
- Aitor's profile on Twitter and Research Gate
- All Nutrition-related episodes on That Triathlon Show
- Effects of 120 g/h of Carbohydrates Intake during a Mountain Marathon on Exercise-Induced Muscle Damage in Elite Runners - Viribay et al. 2020
- Effects of 120 vs. 60 and 90 g/h Carbohydrate Intake during a Trail Marathon on Neuromuscular Function and High Intensity Run Capacity Recovery - Otegui et al. 2020
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CONTACT:
Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.
SPONSORS:
- Precision Fuel & Hydration produce our favourite gels, sports drinks, and electrolyte and carbohydrate products here at That Triathlon Show and Scientific Triathlon. Use the free Fuel & Hydration Planner to get a personalised plan for your carbohydrate, sodium and fluid intake in your next event, and get 15% off your first 2026 order by using the code TTS2026 at checkout.
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