ArticleDiabetology & metabolic syndrome2025
The newly proposed dietary index for gut microbiota and its association with the risk of nonalcoholic fatty liver disease: the mediating role of body mass index.
Article in Diabetology & metabolic syndrome, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Association Between Dietary Index for Gut Microbiota and the Risk of Pelvic Inflammatory Disease: Mediating Role of Anti- and Pro-Inflammatory Dietary Patterns.Food science & nutrition · 2026Article
- The impact of altered gut microbiota and lipid metabolism on the progression of endometrial cancer in overweight populations.Frontiers in endocrinology · 2025Article
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8 authors.
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Abstract
BACKGROUND AND
aimsNonalcoholic fatty liver disease (NAFLD) is strongly associated with dietary habits and the gut microbiota. The dietary index for the gut microbiota (DI-GM) is a newly proposed index that reflects gut microbial diversity based on dietary intake. However, its relationship with NAFLD remains unclear. This study aimed to explore the association between DI-GM and the risk of NAFLD.
methodsIn this cross-sectional study, we utilized data from the NHANES 2009-2018. Multivariable logistic regression, restricted cubic spline curves (RCS), subgroup analysis, and mediation analysis were used to evaluate the association between DI-GM and the risk of NAFLD.
resultsA total of 4,923 participants were included in the study. According to the fully adjusted model, a significant inverse association was observed between DI-GM and NAFLD (OR = 0.883, 95% CI: 0.835-0.932, P < 0.001). After stratification by quartiles, compared with participants in the first quartile of DI-GM score, those in the fourth quartile had a 36.5% lower odds of developing NAFLD (OR = 0.635, 95% CI: 0.481-0.839, P = 0.002). Mediation analysis revealed that 72.69% of the association between DI-GM and NAFLD was mediated by BMI (P < 0.001). Subgroup analysis suggested that the association between DI-GM and NAFLD might be influenced by race (P for interaction < 0.05). RCS analysis revealed a linear correlation between DI-GM and NAFLD (P for nonlinear = 0.883).
conclusionsDI-GM is negatively associated with NAFLD risk, with BMI mediating this relationship and race being a significant influencing factor.
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