what is  lactobacillus
Lactobacillus is a type of bacteria. There are lots of different species of lactobacillus. These are friendly bacteria that normally live in our digestive, urinary, and genital systems without causing disease. Lactobacillus is also in some fermented foods like yogurt and in dietary supplements. Lactobacillus is used for treating and preventing diarrhea, including infectious types such as rotaviral diarrhea in children and traveler's diarrhea. It is also used to prevent and treat diarrhea associated with using antibiotics.