This 2015 review examines the multifactorial causes of anorexia of aging, highlighting physiological factors (e.g., diminished taste and smell, delayed gastric emptying), pathological conditions (e.g., depression, dementia, chronic diseases), and social influences (e.g., poverty, loneliness). The condition is associated with adverse outcomes such as protein-energy malnutrition, sarcopenia, frailty, and increased
