Ghrelin:This is known as the 'hunger hormone' because it stimulates appetite, increases food intake and promotes fat storage.
Cholecystokinin (CCK): This is another hormone that aids digestion and reduces appetite. It acts as an antagonist to ghrelin.
Glucagon-like peptide-1 (GLP-1): A hormone involved in regulating blood sugar levels and slowing down gastric emptying which can lead to feelings of satiety.