Nutrition and Health in Aging

As the body ages, it gradually loses skeletal muscle mass and strength in a process called sarcopenia, which impairs mobility, increases fall risk, and worsens outcomes across a range of diseases. In cancer patients, a related but more aggressive phenomenon called cachexia—driven by tumor-induced inflammation and metabolic disruption—accelerates this muscle wasting in ways that standard nutritional support often fails to reverse. Researchers are working to establish consistent diagnostic criteria that account for both quantity and quality of muscle tissue, since body composition measures like lean mass alone do not always predict who will lose function or respond to treatment. Central open questions include how to disentangle the contributions of inflammation, malnutrition, and aging itself to muscle loss, and whether targeted nutritional or anti-inflammatory interventions can meaningfully preserve muscle and improve survival in vulnerable populations.

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Keywords

SarcopeniaCancer CachexiaMuscle MassNutritional StatusAgingInflammation