Harmony With Food
Harmony With Food
Meg Marie ORourke
Fueling the Run That Matters Most: A Practical Guide to Marathon Nutrition
42 minutes Posted Apr 22, 2026 at 4:00 pm.
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Show notes
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 guide personalized food and supplement plans
  • Practical strategies to support consistent energy and recovery
Topics include:
  • Sports nutrition for runners
  • Marathon fueling strategies
  • Gut health and performance
  • Functional nutrition and lab testing
  • Energy, recovery, and metabolic health
Work With Meg

If you’re ready to stop guessing and start understanding what your body actually needs, there are several ways to work with Meg.

The BioUnique Boutique is a personalized, testing-guided approach to functional nutrition. Through targeted assessments—including food sensitivity testing, digestive analysis, and nutrient evaluation—Meg helps clients identify what’s driving their symptoms and build a plan rooted in data, not trends. This is for those who want answers, structure, and ongoing guidance.

Your Diet Do-Over is designed for people who feel stuck in cycles of restriction, elimination diets, or “doing everything right” without results. This program focuses on rebuilding trust with food, identifying personal triggers, and creating a sustainable way of eating that supports energy, digestion, and inflammation without unnecessary rules or overwhelm. 

Schedule a Free Call

Not sure where to start? You don’t have to figure it out alone.You can schedule a free call to talk through your symptoms, health history, and goals, and to see which option makes the most sense for you. This is a no-pressure conversation focused on clarity and next steps.Your symptoms are real.

Your questions matter.

And understanding your body is the first step forward.

About Meg Meg Marie (AKA- Megnificent):


Meg is a Registered Dietitian and Functional Nutrition practitioner who helps clients understand the science behind their symptoms. She debunks outdated beliefs like “calories in, calories out,” the overreliance on BMI, and the idea that food isn’t connected to chronic issues such as eczema, joint pain, or fatigue.Her work highlights the powerful role of genetics, microbiome balance, nutrient deficiencies, and food intolerances in shaping long‑term health. Meg bridges the gap between conventional medicine and...