Enzymes that cleanse the intestinal tract are effective in relieving symptoms such as bloating, nausea, vomiting, loss of appetite and constipation. Enzyme is a product containing specific bioactive ingredients (such as polysaccharides, oligosaccharides, proteins and peptides, amino acids, vitamins, etc.) made by microbial fermentation using animals, plants, fungi, etc. as raw materials, with or without the addition of maltodextrin, sucrose and other auxiliary materials. The bioactive ingredients of enzymes include nutrients from plant materials and microorganisms, as well as some physiologically active substances generated by fermentation, including amino acids, peptides, vitamins, polysaccharides, polyphenols, flavonoids, alcohols, lipids, enzymes, organic acids and probiotics such as Lactobacillus. The enzymes and probiotics contained in enzymes can be used to promote the digestion and absorption of food and regulate the balance of intestinal microorganisms in the human body, with a two-way regulation, i.e., inhibit the growth of harmful bacteria and promote the reproduction of beneficial bacteria. It can effectively improve symptoms such as diarrhea, constipation, nausea, vomiting and loss of appetite caused by imbalance of intestinal flora. It should be noted that enzymes are recommended to be taken under the guidance of a doctor.