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Lean Mass Retention Challenge

Meaning

The Lean Mass Retention Challenge describes the physiological and clinical difficulty in preserving muscle tissue (lean mass) in the face of catabolic stressors, chronic energy deficits, or age-related decline (sarcopenia). Maintaining muscle mass is not merely an aesthetic concern; it is fundamental for metabolic health, systemic insulin sensitivity, physical strength, and overall longevity, as muscle is the primary site of glucose disposal. This challenge requires a proactive, multi-faceted approach addressing both hormonal balance and adequate nutritional support.