AUTHOR=Wu Chenguang , Xu Zhenyan , Chen Xin , Liu Hualong , Chen Yuliang , Huang Jiaxing , Lu Teng , Huang Zixi TITLE=L-shaped association between fasting blood glucose and urea in a non-diabetic population JOURNAL=Frontiers in Nutrition VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1504855 DOI=10.3389/fnut.2025.1504855 ISSN=2296-861X