Describe a key sign of potential malnutrition.

A key sign of potential malnutrition is significant weight loss over a short period. When an individual experiences rapid weight loss, it often indicates that they are not receiving sufficient nutrients to meet their body's needs. This can be due to various factors, such as decreased intake of food, malabsorption issues, or increased metabolic demands.

Weight loss, especially when it occurs unexpectedly and is substantial, is a clear signal that the person may not be consuming adequate calories or nutrients, which is a crucial aspect of maintaining health. Monitoring weight changes is one of the important ways health care aides can assess an individual’s nutritional status and overall well-being.

Other options do not reflect signs of potential malnutrition. Increased appetite and weight gain are typically associated with a positive nutritional status, while improved strength and mobility suggest the opposite of malnutrition. Frequent snacking between meals might not necessarily indicate malnutrition; it could vary widely in meaning depending on the nutritional value of the snacks consumed.