Episode
Relative Energy Deficiency in Sport (RED-S)
- Podcast
- Black Iron Radio
- Published
- Mar 2, 2026
- Duration seconds
- 2526
- Processing state
not_requested
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Summary
Relative Energy Deficiency in Sport (RED-S) is what happens when an athlete's energy intake doesn't match the demands of their training and life. It's not just about missing periods or being "too lean." Chronic low energy availability can suppress hormones, reduce bone mineral density, alter thyroid function, impair recovery, and decrease performance. What was once labeled the Female Athlete Triad was expanded in 2014 to reflect what research made clear: this affects all genders and multiple physiological systems. Lauren, Amanda, and Krissy unpack how RED-S develops over time, why it's easy to normalize in competitive environments, and the patterns coaches and athletes should be paying attention to. They discuss weight-class and aesthetic sports, repeated fat loss phases, carbohydrate availability, stress load, and how to align nutrition with training cycles without compromising long-term health. If you care about performance that lasts, this conversation is foundational. Black Iron Nutrition Book a Free Discovery Call Free Macro Calculator Free Downloads Black Iron Blog