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Nutrition

Gluconeogenesis in Endurance

Gluconeogenesis in endurance is the liver making glucose during long efforts when glycogen runs low—fueling strategy still matters more than forcing it.

Gluconeogenesis in endurance is liver production of glucose from non-carb sources during long efforts when glycogen falls—important for late-race fueling strategy. Under-fueling training raises reliance on gluconeogenesis and can feel like bonking.

Carbs before and during long sessions reduce the stress.

Common questions

  • Can low-carb training rely on gluconeogenesis?

    Yes, but performance in long hard events usually improves with adequate carbs. Practice race fueling in training instead of assuming gluconeogenesis covers gaps.

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