Lactobacillus reuteri is a probiotic bacterium that has co-evolved with humans since the beginning of time, and because of that it is adapted to its host. L. reuteri is one of the first bacterial species to naturally become established in the microbiota of the new-born. BioGaia’s probiotic products with L. reuteri are among the most scientifically well-documented probiotics in the world in terms of both efficacy and safety. To date, over 280 clinical studies with BioGaia’s L. reuteri-strains have been performed in approximately 19,000 people of all ages. Positive results have been shown for several gastrointestinal disorders, oral health, and bone health.