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Metabolic Fueling

Meaning

Metabolic Fueling describes the comprehensive physiological process of sourcing, processing, and efficiently distributing energy substrates, primarily glucose, fatty acids, and amino acids, to meet the complex energetic demands of the body’s tissues and organs. Efficient metabolic fueling is clinically characterized by metabolic flexibility, which is the crucial ability to seamlessly switch between different fuel sources based on availability and immediate physiological need. This essential efficiency is tightly regulated by key endocrine hormones, including insulin, glucagon, and cortisol.