Understanding Micronutrient Requirements
Kylee Van Horn discusses the importance of considering individualized micronutrient requirements for runners, such as iron and magnesium, and the potential impact on ferritin levels. She emphasizes the need for regular iron panels and the potential risks associated with low ferritin levels, urging athletes to prioritize their health and performance.In this clip
From this podcast

The Running Explained Podcast
s3/e43 Gut Health for Runners with Kylee Van Horn, RND (@flynutrition3)
Related Questions
I just listened to your bloodwork podcast episode and I’ve been considering the last few years of periodic bloodwork I’ve done. My serum iron is often high (above 200 µg/dL), while my ferritin is pretty low (44 ng/mL in 2021, but consistently getting lower: 13.8 ng/mL in May 2024 and 19 ng/mL in November 2024). My hemoglobin has run in the 14-14.8 g/dL range. I’m a 40-year-old female recreational ultra runner.
Why are iron levels critical for athletes?
What do experts recommend for athletes regarding magnesium supplementation?