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Substrate Utilization Rates

Meaning

A quantitative physiological measure of the speed and overall efficiency at which the body’s cells metabolize specific fuel sources, such as glucose, fatty acids, and amino acids, for energy production and essential biosynthesis. Clinically, the optimization of these rates is absolutely crucial for enhancing metabolic flexibility, which is the body’s ability to seamlessly switch between different fuel sources based on availability and fluctuating physiological demand. Balanced and efficient utilization rates are fundamental for stable energy levels, effective weight management, and the prevention of chronic insulin resistance.