Probiotics and developmental progression in healthy preschool-aged children: a double-blind, placebo-controlled trial

This first-of-its-kind study conducted among healthy preschoolers concludes that probiotic supplementation did not significantly influence developmental progress. However, the study was underpowered for its primary outcome. Future large-scale studies involving diverse populations are recommended.<b>Trial registration:</b> Australian New Zealand Clinical Trials Registry identifier: ACTRN12622000153718..