ALB and Hypoalbuminemia: Clinically, this metric facilitates tiered interventions: malnourished patients can benefit from targeted nutritional optimization, such as protocol-driven albumin supplementation (e.g., 0.5 g/kg IV for hypoalbuminemia) and protein regimens tailored to renal function, while overnourished individuals (GNRI > 122) may require calibrated metabolic control through protein restriction and hypocaloric protocols.