which hormone plays a significant role in appetite stimulation
Ghrelin Ghrelin (pronounced /ˈɡrɛlɪn/), the "hunger hormone", also known as lenomorelin (INN), is a peptide hormone produced by ghrelinergic cells in the gastrointestinal tract[5][6] which functions as a neuropeptide in the central nervous system.[7] Besides regulating appetite, ghrelin also plays a significant role in regulating the distribution and rate of use of energy.[8]