The pathogenesis of diarrhea is closely related to the imbalance of intestinal bacteria. The number and types of certain beneficial bacteria are reduced, and the number and types of harmful bacteria are increased, which will lead to intestinal flora imbalance. At this time, the intestinal wall becomes dysfunctional, the absorption of water and electrolytes is reduced, intestinal peristalsis is enhanced, and the time for feces to pass through the intestines is reduced, thus causing diarrhea. Probiotics can improve diarrhea through the following mechanisms:
1. Regulate intestinal flora
Probiotics can promote the reproduction of beneficial bacteria and accelerate the restoration of the body's intestinal flora balance. When diarrheal pathogenic bacteria occupy a dominant position in the intestinal tract, probiotics increase the number of beneficial bacteria through growth and reproduction, inhibit the growth and reproduction of harmful bacteria, play a role in balancing and regulating the flora, and reduce the irritation of harmful bacteria to the intestinal tract.
2. Strengthen the intestinal mucosal barrier
Probiotics can strengthen the intestinal mucosal barrier and facilitate the absorption of nutrients in the intestine. When bacteria invade the intestines, taking probiotics can help strengthen the protective function of the intestinal mucosa and reduce inflammation, diarrhea, and other reactions caused by bacterial invasion.
3. Create an acidic environment
Probiotics can produce abundant lactic acid, which increases intestinal acidity and helps inhibit the growth of pathogenic bacteria. Increasing the acidity of the intestines can improve the intestinal tract's ability to resist bacterial infections and prevent diarrhea.
4. Regulate intestinal motility function
Probiotics can promote intestinal peristalsis and enhance the excretory function of the intestines. When there are too many harmful bacteria in the intestines, they will produce some toxins and wastes. If these substances cannot be excreted in time, they will irritate the intestinal mucosa and cause diarrhea. Probiotics can promote intestinal peristalsis and accelerate the elimination of waste.
For common viral diarrhea, probiotics can also reduce the incidence and duration of the disease. Therefore, probiotics have excellent intestinal control functions and can relieve intestinal discomfort through mechanisms such as regulating intestinal flora, reducing bacterial infections, and enhancing the intestinal mucosal barrier.