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How to Tell If You’re Underfueling Your Runs (Even If You Eat Healthy)

Greenletes Podcast

Greenletes Podcast
How to Tell If You’re Underfueling Your Runs (Even If You Eat Healthy)
Jan 20, 2026
Natalie Rizzo, MS, RD

If your runs feel harder than they should, it's probably not your training. You're not fueling enough. 

In this episode, I break down how runners unintentionally underfuel their workouts, the subtle signs to watch for, and why eating “healthy” isn’t always enough to support performance. I’ll also share how my own first marathon taught me this lesson the hard way and how you can tell if underfueling might be affecting your runs. 

Take the quiz to find out if you're underfueling --> Are You Underfueling?


Have questions or want to request a show topic? DM us @greenletes

Check out Natalie's book 📕: Planted Performance