Gastroenterology is the branch of medicine focused on the digestive system and its disorders. Diseases affecting the gastrointestinal tract, which include the organs from the mouth into anus, along the alimentary canal, are the primary focus of this speciality.

Patients with various gastrointestinal disease may be prescribed enteral formula.  Some common gastrointestinal disorders are irritable bowl syndrome, crohn's disease, celiac disease, eosinophilic esophagitis, gatroesophageal reflux (GERD), ulcerative colitis, acute and chronic pancreatitis, GI obstruction and others.