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Population-level gut microbiome and its associations with environmental factors and metabolic disorders in Southwest China

Qianyu Qu, Qing-Yu Dou, Zhejun Xiang, Bin Yu, Lili Chen, Zhen-Xin Fan, Xing Zhao, Shu-Juan Yang et al.

npj Biofilms and Microbiomes, 2025

13 citations

Abstract

Gut microbiota affects host health and disease. Large-scale cohorts have explored the interactions between the microbiota, host, and environment to reveal the disease-associated microbiota variation. A population-level gut metagenomic cohort is still rare in China. Here, we performed metagenomic sequencing on fecal samples from the CMEC Microbiome Project in Southwest China. In this study, we identified host socioeconomics, diet, lifestyle, and medical measurements that were significantly associated with microbiome function and composition. We revealed extensive novel associations between the host microbiome and common metabolic disorders. Our results provide new insight into associations of gut microbiota with metabolic disorders so as to support the translation of gut microbiome findings into potential clinical practice.

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Evidence Hub reads this as a cohort study. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence.

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