You're Fueling Less Than You Think During Marathons

In this episode, Brady and Thomas discuss a new study that showed marathon runners were consistently consuming less carbohydrates during their race than they either planned or perceived; why this is happening, why it’s important for runners to be aware of this, and how to avoid it. The RLRH Substack post on this article: https://runlongrunhealthy.substack.com/p/why-marathoners-keep-missing-their The study: Under Consumed and Overestimated: Discrepancies in Race-Day Carbohydrate Intake Among Endurance Athletes https://onlinelibrary.wiley.com/doi/10.1002/ejsc.70055 Run Long Run Healthy is brought to you by Marathon Handbook. ➡ https://marathonhandbook.com Subscribe to the Run Long Run Healthy podcast: ➡ Spotify: https://bit.ly/RLRH-spotify ➡ Apple podcasts: apple.co/43iqUKx Get the RLRH weekly newsletter (choose free or paid): ➡ https://marathonhandbook.com/run-long... ➡ https://runlongrunhealthy.substack.com/ Follow us online: BRADY ON X ➡ https://x.com/B_Holmer/ PHYSIOLOGICALLY SPEAKING (Brady's Newsletter) ➡ https://www.physiologicallyspeaking.com/ MARATHON HANDBOOK IG ➡ / marathon.handbook 00:00 Intro'ing the topic 01:20 The importance of carbs during the marathon 03:51 the study, explained 08:50 perceived vs actual carb intake 12:18 How sleep and anxiety play a role 15:48 GI issues a factor? 17:30 How this study has influenced Brady's fuelling strategy