Lactobacillus plantarum has the function of maintaining the stability of intestinal flora, hydrolyzing lactose, and lowering cholesterol level, etc. Its functional treatments are irritable bowel syndrome, gastrointestinal dysfunction, dyspepsia, enteritis, and lactose intolerance. 1.Role: (1) Maintaining the stability of intestinal flora: Lactobacillus plantarum is a kind of lactic acid bacteria, which can produce a large amount of acid thus inhibiting the colonization and reproduction of harmful intestinal bacteria and promoting the reproduction of beneficial intestinal bacteria, which can regulate the balance of intestinal flora and maintain the stability of intestinal flora. (2) Hydrolyze lactose: Lactobacillus plantarum contains α-galactosidase, which can hydrolyze lactose. (3) Lowering cholesterol level: bile salt hydrolase of Lactobacillus plantarum can change bile salt from binding state to de-binding state, co-precipitate with cholesterol and lower cholesterol level. 2.Functional main treatment: (1) Irritable bowel syndrome, gastrointestinal dysfunction, dyspepsia, enteritis, etc.: adjust the intestinal flora and restore the stability of intestinal flora. (2) Lactose intolerance: it can relieve lactose intolerance and avoid diarrhea. The medication should be administered under the guidance of a doctor, and should not be used without authorization.