Eating foods rich in probiotics and maintaining healthy gut flora can help a person maintain a more effective immune system. One study indicated that subjects who were given fermented dairy drinks instead of regular milk had a higher level of lymphocytes in their system. Women's Health A poor balance of good and bad bacteria inside the vagina can cause serious, uncomfortable infections such as yeast infections and bacterial vaginosis. Some studies have shown that probiotics such as L. acidophilus, when taken as vaginal suppositories, can support antibiotics in the prevention and treatment of vaginal infections. Safety of Probiotics Studies have shown that probiotics can trigger an allergic reaction, which can manifest as diarrhea, mild stomach upset, bloating. and flatulence in the first days of application. Some probiotics have been shown to negatively affect metabolic pathways such as carbohydrate metabolism or overstimulation of the immune system. For these reasons, if you have a serious illness or certain intestinal problems, avoid using