Final answer:
Gastric inhibitory peptide modulates vagus-mediated gastric emptying, appetite, and suppresses glucagon secretion.
Step-by-step explanation:
The hormone being described in the question is gastric inhibitory peptide. Gastric inhibitory peptide modulates vagus-mediated gastric emptying and centrally mediated appetite. It also suppresses glucagon secretion. It is secreted by the small intestine in the presence of fatty acids and sugars, and it inhibits acid production and peristalsis to slow down the rate at which food enters the small intestine. This hormone plays a role in regulating digestion, appetite, and glucose metabolism.