Training the gut - Part 2

In this course, Asker Jeukendrup, Aitor Viribay and Ricardo Costa discuss the theory behind 'training the gut' and outline how this can be implemented in practise in elite sport
You will learn about:
  Overview of what 'training the gut' means
  New research around training the gut
  Practical considerations for training the gut
  Examples of training the gut in pro cycling and elite running
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Asker Jeukendrup,  Aitor Viribay, and Ricardo Costa

Number of lectures


Video time

2 hours

Key readings





Professor Asker Jeukendrup

Professor Asker Jeukendrup is one of the world’s leading sports nutritionists and exercise physiologist who spent most of his career as a professor at the University of Birmingham (UK) as Head of The Human Performance Laboratory. Currently he is a (visiting) professor at Loughborough University. He has authored 9 books and over 250 research papers and book chapters. During his career Asker has worked at the forefront of research as well as directly with athletes, including Olympic and World champions, Tour de France cyclists and Champions league football teams.

After many years of working at Universities, Asker accepted a position as the Global Senior Director of the Gatorade Sports Science Institute. At present he is the director of his own performance consulting business “Mysportscience”, and worked or works with a number of football clubs (including FC Barcelona, Chelsea, Red Bull Leipzig, Red Bull Salzbuyrg and PSV eindhove). He is head of performance nutrition of the Jumbo Visma pro cycling team and the Red Bull Athlete Performance Center, and Performance Manager of Nutrition for the Dutch Olympic team.
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Aitor Viribay

Aitor Viribay is a passionate advocate for endurance sports, physiology, and metabolism. Following his retirement from elite cycling, he began conducting research in exercise physiology, metabolism, and nutrition, with a particular focus on exogenous carbohydrate intake and gut training. In 2020, along with a distinguished team of researchers, they published the first evidence demonstrating the effects of ingesting 120 grams of carbohydrates per hour on running performance, recovery, and potential adaptations in comparison to standard recommendations. Since then, Aitor has been implementing practical knowledge and research findings among professional cyclists and trail runners. Having collaborated with Kilian Jornet, among other trail and road runners, and various World Tour cycling teams, he now serves as the head of the Physiology and Nutrition Department at the INEOS Grenadiers Pro Cycling Team. In addition, Aitor is actively engaged in exercise physiology and metabolism research as part of his PhD studies. In 2019, he initiated a project called Glut4Science, which aims to provide practical insights derived from scientific knowledge.
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Dr Ricardo Costa

Dr Ricardo Costa works in the Department of Nutrition Dietetics & Food, Faculty of Medicine Nursing and Health Sciences at Monash University as an academic, researcher, consultant and practitioner in Sports Dietetics and Extremes Physiology. Ricardo is a HCPC Registered Dietitian-UK, SENr Registered Sport Dietitian- UK, Accredited Practicing Dietitian-Aus and Advanced Sports Dietitian-Aus, who came to Monash University in August 2013 from Coventry University-UK. Ricardo completed his PhD at the University of Wales- UK, in neuroendocrine and nutritional immunology on the influence of sleep deprivation, cold exposure, exercise stress and nutritional intervention on selected immune responses. Ricardo's recent work has focused on immune, thermoregulatory, and gastrointestinal health in sport. He also studies the impact of ultra-marathon competition on nutrition and hydration status, and implication for health.Before entering a career in academics he was a professional/semi-professional Trialthlete/Duathlete competing on the World and European circuit between 1994-2003.
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