Probiotics are active microorganisms that are beneficial to the host by colonizing in the human body and changing the composition of the flora in a certain part of the host. Some are vegetable extracts, others can be extracted from dairy products and combined with prebiotics. By regulating the host's mucosal and systemic immune functions or the balance of intestinal flora, probiotics can promote the absorption of nutrients and maintain the intestinal health, thus producing single microorganisms or a clear mixture of microorganisms conducive to the host's health.

Plant extract is a product formed by taking plants as raw materials, according to the needs of the use of the extracted final product, through the process of physical and chemical extraction and separation, directional acquisition and concentration of one or more effective components of plants without changing the structure of their effective components. It is an industry corresponding to animal extract and can be used in medicine industry, food industry, health industry, beauty industry and other industries. According to the different components of extracted plants, there are glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc. According to different characters, it can be divided into vegetable oil, extractum, powder, crystalloid and so on.

As a focus of people's attention in recent years, probiotics have the following functions: 1. Maintain normal intestinal function. Probiotics help us digest and absorb nutrients better because they produce digestive enzymes in our gastrointestinal tract that help us digest the foods we eat better. 2. Help lactose intolerant people improve digestion. Lactose intolerance is a common condition in modern humans. According to research, lactase activity is declining in about 75% of adults worldwide, and the number of lactose intolerants has been increasing, especially in Asian countries. Probiotics can help lactose intolerant people produce galactosidase active bacteria, thus solving the adverse reactions such as abdominal pain and gas caused by lactose intake in lactose intolerant people. 3. Enhance human immunity. After ingestion, live probiotics can colonize the intestinal tract and thus regulate the balance of different intestinal flora. Probiotics can also have a direct impact on the intestinal immune system and enhance the immune function of the intestine. 4. Prevent cancer and inhibit tumor growth. Metabolites that inhibit tumor growth, such as polysaccharides, bacteriocins and lactic acid, are available from probiotics, these products by inhibiting the conversion of carcinogens enzymes, activate the body's immune system, reduce intestinal PH value, stimulate the intestinal peristalsis, exclude the pathogenic bacteria of intestinal toxins and carcinogenic substances, thereby reducing the possibility of cancer. 5. Relieve allergic reactions. In general, the more probiotics you have in your gut, the less likely you are to develop allergies. 6. Lower serum cholesterol. Probiotics have the effect of biliary salt hydrolytic enzyme, which can hydrolyze the bile salt in the small intestine with cholesterol, thereby reducing the absorption of cholesterol by the body.

But probiotics can vary from person to person, with the average adult taking about 100ml of live lactobacillus daily. However, it is important to note that probiotic yogurt should not be consumed in patients with excessive gastric acid, gastrointestinal surgery, endocarditis and severe pancreatitis. It is best to consult a doctor in advance.

Probiotics have many benefits, but every coin has two sides, so here are some things to look out for when taking probiotics: 1. The survival environment of probiotics strains requires strict requirements, with high standards for production and packaging. Therefore, when buying probiotics, it is important to pay attention to whether the brand you buy is trustworthy or not. 2. There are many different types of probiotics that have different benefits, so when you supplement your body with probiotics, please buy different types of probiotics for different causes and conditions. The benefits of probiotics vary from strain to strain, so please select the appropriate strain according to the specific problem you want to prevent or treat. 3. Some probiotics are not resistant to gastric acid and intestinal fluids. If the probiotics you eat do not reach the colon alive, they will not help. 4. Since everyone is different, it's important to observe how the body reacts after adding probiotics. 5.Keep probiotics well and avoid direct exposure to heat or sunlight. Keep probiotic products in cold storage. This will maximize the number of live probiotics. Probiotics in lactic acid products generally have a shelf life of 1 month, and the refrigeration temperature is controlled at about 2~10℃.