Dietary index for gut microbiota, a novel protective factor for the prevalence of chronic kidney diseases in the adults: insight from NHANES 2007–2018 - Xiao, Yunfei; Yang, Yaqing; Gao, Shunyu; Zhang, Hao; Wang, Jia; Lin, Tao; Bai, Yunjin (Frontiers in Nutrition, 2025)