Which nutrient deficiency is most commonly linked to involuntary weight loss in older adults?

Involuntary weight loss in older adults is often linked to protein deficiency. Protein is essential for maintaining muscle mass and strength, which are crucial for overall health and physical function. As individuals age, they may experience a natural decline in appetite or difficulty swallowing, leading to reduced protein intake. Moreover, inadequate protein consumption can result in a condition known as sarcopenia, characterized by the loss of muscle mass and function, which further exacerbates weight loss and can impair mobility and increase the risk of falls.

Older adults may also face additional challenges, such as chronic illnesses or medications that impact their nutritional status and appetite. Ensuring an adequate protein intake is vital for recovery from illness, maintaining immune function, and supporting various bodily functions. Hence, addressing protein deficiency is critical in preventing and managing involuntary weight loss among this population, making it a primary concern in gerontological nutrition.