Association between magnesium depletion score and the risk of metabolic dysfunction associated steatotic liver disease: a cross sectional study
Abstract
The relationship between magnesium deficiency and metabolic dysfunction associated steatotic liver disease (MASLD) remains unclear. This study aimed to examine the association between the magnesium depletion score (MDS) and the risk of MASLD, as well as explore potential underlying mechanisms. Data from 12,024 participants from the National Health and Nutrition Examination Survey (NHANES) 2005–2018 were analyzed. MDS was calculated based on the use of diuretics and proton pump inhibitors, kidney function, and alcohol consumption. MASLD was defined using the fatty liver index. Logistic regression, restricted cubic spline analysis, and mediation analyses were conducted to evaluate the association between MDS and MASLD and to identify potential mediators. A higher MDS was significantly associated with an increased risk of MASLD (OR = 2.00, 95% CI [1.47, 2.74] for MDS 3 vs. 0). A dose-response relationship between MDS and MASLD risk was observed. Neutrophils, albumin, and white blood cells partially were identified as partial mediators of the association, with albumin exhibiting the highest mediating effect (14.05%). Elevated MDS is significantly associated with an increased risk of MASLD in U.S. adults. Inflammation and albumin may serve as potential mediators of this relationship. These findings underscore the importance of addressing magnesium deficiency in the prevention and management of MASLD.
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