You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following hormone is not involved in regulation of food intake? and explain in detail?
Ghrelin is secreted primarily by the stomach especially during fasting, and stimulates appetite. Peptide YY (PYY), Cholecystokinin (CCK), and Insulin are gastrointestinal hormones that are released by the ingestion of food and suppress fuher feeding. Gastrin has no role in regulation of food intake. Leptin is a hormone produced in increasing amounts by fat cells as they increase in size. It inhibits food intake.