ArticleBMC gastroenterology2025
Association between non-skimmed milk consumption and metabolic dysfunction-associated fatty liver disease in US adults: insights from NHANES data.
Article in BMC gastroenterology, 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
purposePrevious studies on the association between non-skimmed milk consumption and non-alcoholic fatty liver disease (NAFLD) have reported inconsistent findings, with some suggesting an increased risk and others indicating a protective effect. Moreover, as the research focus has shifted globally from NAFLD to metabolic dysfunction-associated fatty liver disease (MAFLD), there remains limited evidence on the relationship between non-skimmed milk consumption and MAFLD. The objective of this cross-sectional study was to investigate this association using data from the National Health and Nutrition Examination Survey (NHANES).
methodsIn this U.S. population-based study, adults with complete information on non-skimmed milk consumption and MAFLD diagnosis from the 2017-March 2020 Pre-Pandemic NHANES were included. MAFLD was defined using the controlled attenuation parameter (CAP). The association between non-skimmed milk consumption and MAFLD was assessed using weighted multivariable logistic regression, adjusting for potential confounders. Subgroup and sensitivity analyses were conducted to evaluate effect modifications and robustness.
resultsThe study involved 3,758 participants in total, 1,423 (37.87%) of whom had MAFLD according to the diagnosis. Frequent non-skimmed milk consumption was independently associated with higher MAFLD risk. Compared to the "Rarely" group (< 1 time/week), the "Sometimes" group (≥ 1 time/week but < 1 time/day) had an odds ratio (OR) of 1.67 (95% CI: 1.32-2.12, P = 0.004), and the "Often" group (≥ 1 time/day) had an OR of 1.36 (95% CI: 1.06-1.75, P = 0.046). Stratified analysis revealed that the association was significantly modified by education level (P for interaction = 0.010), with a stronger association observed among participants with higher education levels. Sensitivity analysis yielded consistent results, further supporting the robustness of the association.
conclusionOur findings suggest a significant association between frequent non-skimmed milk consumption and risk of MAFLD, particularly in highly educated individuals. These results highlight the importance of dietary modifications, specifically reducing non-skimmed milk intake, as a potential preventive strategy for MAFLD, especially in high-risk populations.
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