Production of Ghrelin main organ is the stomach, including the hypothalamus, pituitary, intestine, ovary, testis and placenta organization also can produce Ghrelin [36], so the distribution of Ghrelin in the hypothalamus, jejunum, duodenum, colon, lung, liver, fat, placenta, spleen, lymph nodes, thymus, such as many tissues and organs of animals, as well as the peripheral T lymphocytes, monocytes and dendritic cells and other immune cells [37]. Previous studies have found that Ghrelin has an effect on gastric emptation and intestinal transport in rats, and Ghrelin can significantly accelerate gastric emptation and intestinal transport in awake rats [38]. Ghrelin not only promotes feeding in mammals, but also enhances gastrointestinal peristalsis, so as to facilitate the rapid transfer of food to the intestine and the absorption of nutrients in the digestive tract