The Hidden Cost Of Underfueling For Runners

Send us Fan Mail We speak with registered dietitian Lauren Ganim about how underfueling can quietly derail both running performance and long-term health, from thyroid slowdown to disrupted hormones, sleep, and rising heart rate. We also look at the emotional and cultural forces that shape how runners eat, then land on simple, practical ways to fuel, hydrate, and recover well. • low energy availability and the hormone cascade that slows metabolism and switches off non-essential systems&n...