Only limited numbers of studies have been done on the cephalic phase in anorexia and bulimia. There are findings of a significant CPIR in anorexics as compared to controls which tends to rule out a deficient cephalic insulin response as a contributor to the self-starvation observed in anorexia nervosa. As to bulimics who often show endocrine abnormalities, their CPIR was only slightly differ or from controls.