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Energy Reserve Saturation

Meaning

The physiological state characterized by the maximal storage capacity of energy substrates, specifically glycogen in the liver and muscle tissue, and triglycerides in adipose tissue, being reached or exceeded. From a metabolic health perspective, achieving saturation in healthy energy reserves (like muscle glycogen) is beneficial for performance, while excessive saturation in adipose tissue signals metabolic inflexibility and potential insulin resistance. It is a key metric in assessing nutritional status and metabolic burden.