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Fuel Agnostic Performance

Meaning

Fuel Agnostic Performance describes a highly adaptable metabolic state where the human body possesses the inherent flexibility to efficiently utilize multiple energy substrates, including glucose, fatty acids, and ketone bodies, depending on the immediate availability and fluctuating physiological demand. Achieving this state means that physical and cognitive performance is effectively “agnostic” or indifferent to the specific fuel source being utilized, thereby allowing for sustained, resilient energy and remarkable stability against dietary or activity variations. This metabolic flexibility is recognized as a key biomarker of robust health and superior energy regulation.