# The Science of Nutrition, Gut Training, Supplements, and Performance with Dr. Emily Dow

Page: https://stenobird.com/podcast/everyday-ultra-4835603/the-science-of-nutrition-gut-training-supplements-and-performance-with-dr-emily-dow
Text version: https://stenobird.com/podcast/everyday-ultra-4835603/the-science-of-nutrition-gut-training-supplements-and-performance-with-dr-emily-dow.md
Podcast: [Everyday Ultra](https://stenobird.com/podcast/everyday-ultra-4835603)
Published: 2026-04-29T22:45:01+00:00
Episode link: https://podcasters.spotify.com/pod/show/everyday-ultra/episodes/The-Science-of-Nutrition--Gut-Training--Supplements--and-Performance-with-Dr--Emily-Dow-e3ilrof
Audio file: https://anchor.fm/s/78c622f8/podcast/play/119254223/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-3-29%2F51cd87f0-8f03-91ea-1a4c-fc236ee8dd2a.mp3
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JSON: https://stenobird.com/v1/public/podcasts/everyday-ultra-4835603/episodes/the-science-of-nutrition-gut-training-supplements-and-performance-with-dr-emily-dow
Duration seconds: 3836

## Resource

Are you actually fueling enough to support your ultramarathon training… or are you unknowingly sabotaging your performance? In this episode, I’m joined by Dr. Emily Dow: nutrition scientist, strength and conditioning specialist, educator, and content creator who helps athletes cut through the BS and understand what the science actually says about performance nutrition. And this conversation is a must-listen for any ultrarunner who wants to train harder, recover better, avoid GI issues, and stay healthy long-term. We dive into why “lighter is better” can be a dangerous mindset for endurance athletes, how underfueling can wreck your recovery and adaptations, what runners need to know about iron, fiber, gut health, and supplements, and how to properly train your gut to handle more carbs during long runs and races. In this episode, we cover: Why underfueling is one of the biggest performance limiters for endurance athletes The problem with chasing race weight or “lighter is better” Signs you may not be eating enough to support your training Supplements that may actually be worth taking — and which ones may not be Why probiotics and greens powders might not be as useful as people think How fiber impacts gut health, longevity, and performance How to train your gut to tolerate more carbs Whether gels every day are bad for long-term health Why health, recovery, and performance are all connected Huge thank you to Dr. Emily Dow for coming on the show and sharing so much science-backed insight for ultrarunners and endurance athletes. SHOW LINKS: Want to work with me to crush your next ultramarathon in our group coaching program? Sign up for our group coaching program here: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠https://www.theeverydayultra.com/group-coaching⁠⁠⁠⁠⁠…

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