Probiotics are a kind of living bacteria beneficial to human health, which is closely related to human health. How much do you know about probiotics? Let's talk about probiotics in detail!
The word probiotics that we often talk about actually means life. It includes not only what we often call lactic acid bacteria (found in yogurt), but also all the beneficial bacteria that naturally exist in the human gut. It is generally believed that Bifidobacterium and Lactobacillus acidophilus are the safest in human body. When a newborn is just born, its intestinal tract is sterile, but when it passes through the mother's birth canal and contacts with the mother, the source of bacteria can be obtained. Therefore, Enterobacteriaceae, Micrococcus, Streptococcus, etc. can be detected within a few hours after birth, and the number is increasing.
Intestinal tract, oral cavity, skin and vagina are the four major bacterial libraries of human body. Now, the microecology of intestine and vagina is the most studied, and the intestinal tract is the largest bacterial Library in human body.
The number of bacteria in the digestive system is so large that some people once counted that there are more than 400 kinds of bacteria in the intestinal tract, about 0 trillion bacteria, weighing up to 2 kg. There were 03-06 bacteria / g in the esophagus, 03-06 cells / g in the small intestine, and 08-0 cells / g in the large intestine or colon, and 0-30% of the wet weight of feces contained bacteria
In fact, there are more bacteria in your gut than there are cells in your body. In healthy intestinal tract, under normal circumstances, the ratio of beneficial bacteria to harmful bacteria is 0. The huge intestinal flora is interdependent and mutually restricted. Under normal circumstances, this system is in a dynamic balance state to maintain human health.
It can be involved in the normal biological barrier and intestinal biochemical barrier. Chemical barrier refers to the metabolites of normal intestinal flora, such as acetic acid, lactic acid, propionic acid, hydrogen peroxide and bacteriocin. These substances can prevent the growth and reproduction of pathogenic bacteria in the body or directly kill pathogenic bacteria. The biological barrier is a biofilm like structure formed by the normal flora between mucous membrane or skin epithelial cells. It can resist the invasion of foreign pathogenic bacteria.
Probiotics can also be used as non-specific immune regulatory factors to stimulate host immune cells through bacteria themselves or cell wall components to activate them, thus promoting phagocyte activity and increasing the ability of human body to resist diseases.
In terms of human health care and nutrition, probiotics can synthesize many vitamins, such as nicotinic acid, folic acid, pantothenic acid, nicotinic acid and vitamin BL, B2, B6, B2, etc., to promote the body's digestion and absorption of protein; promote the body's absorption of calcium, iron, vitamin D, with the function of helping digestion and increasing appetite
Probiotics can also reduce cholesterol, inhibit cancer, treat gastrointestinal diseases, protect you from food poisoning, improve human immunity, fight against all kinds of pathogenic microorganisms, and discharge toxins and environmental pollutants. Fortunately, you already have (or should have) hundreds of millions of such guards in your body. They're probiotics - the living probiotics that live in the body's gastrointestinal tract, and they form your body's first line of defense against disease.