A method of treating a gastrointestinal disease or disorder in a patient in need thereof comprising administering to said patient an effective amount of a controlled release composition comprising an ileum hormone stimulating ileal brake hormone releasing substance which releases at least 50% by weight of said ileal brake hormone releasing substance in the ileum of said patient wherein said gastrointestinal disease or disorder selected from the group consisting of atrophic gastritis, post chemotherapy disorder, intestinal motility disorder (gut dysmotility), mild reflux, chronic pancreatitis, malnutrition, malabsorption, voluntary or involuntary long term starvation, post infectious syndrome, short bowel syndrome, irritable bowel, malabsorption, diarrheal states, post chemotherapy gastrointestinal disorder, post infectious syndrome, radiation enteritis, celiac disease, fatty liver disease, cirrhosis, radiation, inflammatory bowel disease and Crohn's disease.