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Topic: Nutrition - September 10 2026
Why Fasting Hurts Endurance Gains

Intermittent fasting can undermine recovery, hormone health, and endurance performance. VIS Expert Jessica Garay, PhD, RDN, explains how restricted eating windows limit glycogen storage, disrupt adaptation, and make consistent training harder for female athletes.

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For women endurance athletes, the real work of performance doesn’t just happen in training, it happens during recovery. During recovery, our bodies have the energy and rest to properly absorb training stress. That's when we make the best training adaptations.  That’s why what we do between sessions—especially how we fuel—plays a critical role in determining how well we actually adapt.  Carbohydrates: The Foundation of Endurance Endurance performance relies h...
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