The severity of nephrogenic diabetes insipidus
can be reduced by decreasing the intake of salt and, if possible, protein
. However, this will not completely correct the problem. Fluid restriction may reduce urine output
in some patients but it should never be tried as treatment because it will also result in hypernatremic dehydration
and marked increase in thirst. Patients with severe hypernatremic dehydration
can suffer small strokes that permanently damage the brain.