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Effects of multistrain probiotic supplementation on hepatic function and anthropometric parameters in patients with metabolic dysfunction-associated steatotic liver disease: a double-blind, randomized controlled trial.

Małgorzata Moszak·Mariusz Kaczmarczyk·Matylda Kręgielska-Narożna·Igor Łoniewski·Karolina Skonieczna-Żydecka·Monika Szulińska·Paweł Bogdański
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Abstract

BACKGROUND: Metabolic dysfunction-associated steatotic liver disease (MASLD) is increasingly prevalent on a global scale. The gut microbiota is integral to its pathogenesis, prompting extensive research into microbiota modulation as a potential adjunctive therapeutic strategy. AIM: The study aimed to evaluate the effect of multistrain probiotics supplementation on hepatic function in patients with MASLD in a double-blind, randomized, controlled trial. The primary outcomes were changes in Fibrosis-4 index (FIB-4) and fatty liver index (FLI). Secondary outcomes included changes in anthropometric parameters, selected biochemical markers, and other liver-related indices. METHODS: A total of 64 patients with MASLD were randomly assigned to two groups receiving either placebo (C) or a probiotic mixture (PRO) containing the following bacterial strains: 50% Lactococcus lactis Rosell-1058, 25% Lacticaseibacillus casei Rosell-215, 12.5% Lactobacillus helveticus Rosell-52, 12.5% Bifidobacterium bifidum Rosell-71 for 12 wk. RESULTS: Significant group &#xd7; time interactions were observed for FIB-4 (Q = 0.007), with reduction in the PRO group and increase in the C group (-0.05 vs. 0.10; P = 0.002). No significant interaction was found for FLI (Q = 0.942). Significant group &#xd7; time interactions were also observed for aspartate aminotransferase (-2.87 vs. 1.87 U/L; Q = 0.003) and APRI (-0.03 vs. 0.02; Q = 0.001), favoring the PRO group (P < 0.001 for both). No significant changes were observed in anthropometric parameters, glucose levels, or lipid profile. CONCLUSIONS: In patients with MASLD, the 12-wk probiotic supplementation had a modest but statistically significant effect on FIB-4, aspartate aminotransferase, and APRI, with no significant effect on FLI or anthropometric and metabolic parameters. These findings suggest that this probiotic formulation may have potential benefits for liver function in MASLD. However, long-term studies incorporating imaging-based and histological endpoints are required to determine the clinical significance of these findings.

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HumansProbioticsDouble-Blind MethodFemaleMaleLiverMiddle AgedAdultDietary SupplementsAnthropometryFatty LiverGastrointestinal MicrobiomeBiomarkersAspartate AminotransferasesMetabolic DiseasesBMIFIB-4Gut microbiotaLiver functionMASLDProbioticJournal ArticleRandomized Controlled Trial

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Ma&#x142;gorzata Moszak, Mariusz Kaczmarczyk, Matylda Kr&#x119;gielska-Naro&#x17c;na, Igor &#x141;oniewski, Karolina Skonieczna-&#x17b;ydecka, Monika Szuli&#x144;ska, Pawe&#x142; Bogda&#x144;ski. 2026-06-11. Effects of multistrain probiotic supplementation on hepatic function and anthropometric parameters in patients with metabolic dysfunction-associated steatotic liver disease: a double-blind, randomized controlled trial.. https://doi.org/10.1016/j.nut.2026.113325

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Journal Article; Randomized Controlled Trial resourceAdult subjectAnthropometry subjectBMI subjectBiomarkers subjectDietary Supplements subjectDouble-Blind Method subjectFatty Liver subjectFemale subjectGastrointestinal Microbiome subjectGut microbiota subjectHumans subjectJournal Article subjectLiver subjectMASLD subjectMale subject

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