The digestive system, encompassing the study, diagnosis, and treatment of disorders affecting the gastrointestinal tract. Gastroenterologists address a wide range of conditions, including but not limited to, irritable bowel syndrome (IBS), inflammatory bowel diseases (IBD), liver diseases, and gastrointestinal cancers. Procedures such as endoscopy and colonoscopy are frequently employed for both diagnosis and treatment. Nutrition plays a crucial role in this field, with gastroenterologists often providing dietary advice. The field continually evolves with advancements in technology and research, contributing to improved understanding and management of digestive health issues.