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Performance Fuel Transition

Meaning

Performance Fuel Transition is the adaptive metabolic process where the body shifts its primary energy substrate utilization from predominantly glucose (carbohydrates) to fatty acids and ketone bodies (fats). This transition is a key physiological goal in many advanced nutritional and athletic protocols, as it allows for sustained energy production, spares muscle glycogen stores, and is associated with enhanced endurance and mental clarity. Achieving this transition signifies a state of high metabolic flexibility.