Fueling the Run That Matters Most: A Practical Guide to Marathon Nutrition

Fueling the Run That Matters Most: A Practical Guide to Marathon Nutrition

From Harmony With Food by Meg Marie ORourke

April 22, 2026 · 43 min · Episode 411

About this episode

Meg Marie O’Rourke discusses sports nutrition for endurance athletes and marathon runners, emphasizing the importance of proper nutrition for performance and wellness.

In this episode of the Harmony With Food Show, Meg Marie O’Rourke explores sports nutrition for endurance athletes, marathon runners, and active adults looking to improve energy, recovery, and overall health. With the Boston Marathon as the backdrop, Meg shares insights from her personal story and her father’s legacy as a track coach, while breaking down how proper nutrition supports both performance and long-term wellness. This episode covers how to fuel your body with real food, how to think about carbohydrates in endurance training, and how to avoid common pitfalls in the sports nutrition world. It also introduces Meg’s functional approach to nutrition using lab testing to better understand what your body needs. In this episode, you’ll learn: How to fuel for endurance training, running, and marathon preparation The role of carbohydrates, protein, and hydration in performance Differences between simple, complex, and refined carbohydrates How gut health and the microbiome affect energy and recovery Why many athletes struggle with fatigue, GI issues, and inflammation The risks of overtraining and disordered eating patterns like orthorexia How functional nutrition testing can…

People in this episode

Host: Meg Marie O’Rourke

Topics covered

  • sports nutrition
  • endurance training
  • marathon preparation
  • gut health
  • functional nutrition
  • energy and recovery

Keywords

  • marathon nutrition
  • carbohydrates
  • protein
  • hydration
  • gut health
  • functional nutrition testing
  • energy recovery
  • overtraining
  • disordered eating

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