Final answer:
Gastric inhibitory peptide (GIP) is produced in the small intestine. It is secreted in response to the presence of fatty acids and sugars and has several functions, including inhibiting acid production and stimulating insulin release.
Step-by-step explanation:
Gastric inhibitory peptide (GIP), also known as glucose/insulin tropic peptide, is produced in the small intestine. It is secreted by the endocrine cells located in the mucosa of the gastrointestinal (GI) tract, specifically in the small intestine. GIP is released in response to the presence of fatty acids and sugars in the small intestine. Its main functions include inhibiting acid production, slowing down peristalsis, and stimulating the release of insulin.