 By protecting against many common infections, "L. reuteri" promotes overall wellness in both children and adults.Double-blind, randomized studies in child care centers have found "L. reuteri"-fed infants fall sick less often, require fewer doctor visits and are absent fewer days from the center compared to placebo and to the competing probiotic "Bifidobacterium lactis".Similar results have been found in adults; those consuming "L. reuteri" daily end up falling ill 50% less often, as measured by their decrease use of sick leave.