AUTHOR=Kong Weiliang TITLE=Associations between ultra-processed foods intake and preserved ratio impaired spirometry in U.S. adults JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1523736 DOI=10.3389/fnut.2025.1523736 ISSN=2296-861X