AUTHOR=Guan Yiran , Zhu Ruixin , Zhao Wen , Wang Langrun , You Li , Zeng Zhaozhong , Jiang Qiuyue , Zhu Zeyang , Gou Jiayu , Zhang Qi , Guo Jie , Li Keji , Zhao Liang , Li Yixuan , Wang Pengjie , Fang Bing , Hung Weilian , He Jian , Zhang Liwei , Wang Ran , He Jingjing TITLE=Effects of Lacticaseibacillus paracasei K56 on perceived stress among pregraduate students: a double-blind, randomized, placebo-controlled trial JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1544713 DOI=10.3389/fnut.2025.1544713 ISSN=2296-861X