What is a characteristic of protein malnutrition?

A characteristic of protein malnutrition is Kwashiorkor, which is a severe form of malnutrition resulting from inadequate protein intake despite a sufficient caloric intake. It is particularly prevalent in children who are weaned from breastfeeding and do not receive adequate protein-rich foods. Individuals with Kwashiorkor often present with symptoms such as edema (swelling), irritability, and a distended abdomen, among other clinical signs. This condition highlights the critical role of protein in maintaining body function, growth, and development.

In contrast, the other conditions listed are not directly characterized by protein malnutrition. Obesity is related to excessive caloric intake and is associated with an abundance of fats and carbohydrates, rather than a deficiency. Hyperglycemia refers to elevated blood sugar levels and is not specifically a result of protein intake. Undernutrition is a broader term that encompasses deficiencies in various nutrients, not solely protein. Therefore, while undernutrition may encompass protein deficiency, the specific manifestation of protein malnutrition is most accurately represented by Kwashiorkor.