Which of the following is NOT a possible cause of unintentional weight loss in people with Alzheimer's disease?

Unintentional weight loss in individuals with Alzheimer's disease can be influenced by various factors, including changes in dietary habits and energy expenditure. Higher protein intake, however, is typically not a cause of unintentional weight loss.

In individuals with Alzheimer's disease, the focus often shifts to maintaining adequate nutrient intake to support overall health and cognitive function. A higher protein intake generally contributes to muscle preservation and can support metabolic function rather than lead to weight loss. In fact, it may help counteract some aspects of weight loss by providing essential nutrients needed for cellular repair and energy.

In contrast, lower energy intake, higher resting energy expenditure, and exaggerated physical activity can lead to weight loss. Lower energy intake may result from a diminished appetite or difficulty with eating, which is not uncommon in Alzheimer's patients. An increase in resting energy expenditure and physical activity may occur due to various factors, including heightened agitation or the need for more energy as cognitive functions decline. These aspects can contribute to an overall caloric deficit, resulting in unintentional weight loss.

Thus, the assertion that higher protein intake is not a cause of unintentional weight loss aligns with nutritional principles supporting adequate protein consumption, particularly in older adults, to maintain health and prevent weight loss.