What condition is characterized by excessive hunger associated with diabetes insipidus?

The condition characterized by excessive hunger associated with diabetes insipidus is polyphagia. This phenomenon occurs when the body is unable to effectively use glucose due to the lack of sufficient insulin or insulin resistance, triggering an increase in hunger signals as the body attempts to obtain more energy. In the context of diabetes insipidus, although the primary concern is the excessive thirst and urination due to a deficiency in the hormone that regulates water balance, the resulting dehydration can lead to increased feelings of hunger as the body tries to compensate for the lack of fluids and nutrients.

Polydipsia, which refers to excessive thirst, is related to the need for hydration rather than hunger. Polyuria describes the increased production of urine, also related to the condition's effects on fluid balance. Anorexia refers to a lack of appetite, which contrasts the condition of excessive hunger. Each of these terms illustrates different aspects of the body's responses to metabolic shifts and hormonal imbalances, making polyphagia the correct term to identify excessive hunger in the context outlined.