Iron Deficiency in Endurance Athletes — What You Need to Know
Somewhere along the ultramarathon journey, host Erin Quinn lost sight of one crucial metric: iron. In this episode, she dives deep into iron deficiency and iron deficiency anemia among endurance athletes — especially female runners, up to 45% of whom may be affected.
Erin breaks down why iron matters (hint: it's tied directly to oxygen delivery and performance), how endurance training accelerates iron loss through hemolysis, sweat, and inflammation, and why menstruating and plant-based athletes face even greater risk. She also shares her own wake-up call — a summer of unexplained fatigue, heart palpitations, and hills that suddenly felt impossible — that led to a shocking blood test result.
You'll learn the symptoms to watch for, the difference between iron deficiency and iron deficiency anemia, how it's diagnosed, and what treatment options (from dietary changes to supplements to infusions) look like.
Knowledge is power — don't let iron be the blind spot in your training.
Start where you are, but make sure you start.
Follow Erin Quinn, @erinquinnultraruncoach for more tips and training and everything Ultra. To contact Erin and learn more about her 1:1 online ultrarunning coaching go to erinmaryquinn.com or just shoot her an email at [email protected]
She'd love to hear your thoughts, comments, and any stories you'd like to share or topics you're interested in having her cover on the podcast.
Start Where You Are, But Start!