ArticleCurrent research in microbial sciences2025
Association between dietary index for gut microbiota and sleep duration in US adults: a cross-sectional study.
Article in Current research in microbial sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The microbiota-gut-brain axis underlies the pathogenesis of sleep disorders. The dietary index for gut microbiota (DI-GM) is an innovative diet quality metric related to gut microbiota diversity, with higher scores indicating a healthier gut microbiome. This study aimed to investigate its association with sleep duration. Methods: This cross-sectional study analyzed the National Health and Nutrition Examination Survey (NHANES) data from 2005 to 2018, involving 25,439 participants aged ≥20 years. The DI-GM score was calculated utilizing dietary recall data, encompassing both beneficial (BGMS) and unfavorable (UGMS) to gut microbiota score. Sleep duration was assessed via the question: "How much sleep do you usually get at night on weekdays or workdays?" and categorized as short (<7 h per night), optimal (7-8 h per night), and long (>8 h per night). Multivariable weighted linear and logistic regression models were performed to determine the association between DI-GM and sleep duration. Secondary analyses included restricted cubic splines (RCS) and subgroup analyses. Results: In the fully adjusted model, a higher DI-GM score was associated with longer sleep duration (β =0.03, 95 % confidence interval [CI]: 0.01-0.04, Conclusions: Higher DI-GM scores were associated with longer sleep duration, underscoring the potential of gut microbiota-targeted diets for sleep health.
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