AUTHOR=Weström Björn , Pierzynowski Stefan G. TITLE=Editorial: Precocious Gut Maturation: Environmental and Dietary Factors JOURNAL=Frontiers in Nutrition VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.868722 DOI=10.3389/fnut.2022.868722 ISSN=2296-861X