Original Article

Synbiotic-Containing Bacillus coagulans (GBI-30) and the Effects on Glycemic Control, Androgen Hormones and Anthropometric Indices in Women with Polycystic Ovarian Syndrome

Abstract

Background: We aimed to investigate the effect of synbiotic supplement-containing spore-forming Bacillus coagulans (GBI-30) on the glycemic, hormonal and anthropometric parameters in patients with PCOS.
Methods: In this randomized, triple-blind, placebo-controlled trial, 72 patients with PCOS were randomly and equally assigned to receive a daily sachet of synbiotic (containing Bacillus coagulans (GBI-30), Lactobacillus rhamnosus, Lactobacillus helveticus, and fructooligosaccharide (FOS)) or placebo for 12 wk. Glycemic, hormonal and anthropometric parameters were measured at baseline and after the 12-week of intervention.
Results: At the end, 60 patients completed the study. After adjustment for potential confounders, significant decrease in insulin (−3.38±20.20 vs. +2.33, P=0.042), homeostatic model assessment for insulin resistance (HOMA-IR) (−0.43±3.61 vs. +0.73 ± 2.91, P=0.044) and dehydroepiandrosterone sulfate (DHEAS) (−1.47±6.62 vs. + 0.03 ± 2.06, P=0.047) was observed in the intervention group compared to the control group. Supplementation with synbiotic failed to show a significant effect on anthropometric parameters and fasting blood sugar.
Conclusion: Overall, 12 wk supplementation with synbiotic-containing Bacillus coagulans (GBI-30) can offer additional benefit to lifestyle intervention on metabolic status of women with polycystic ovarian syndrome.

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IssueVol 54 No 7 (2025) QRcode
SectionOriginal Article(s)
DOI https://doi.org/10.18502/ijph.v54i7.19160
Keywords
Polycystic ovary syndrome Bacillus coagulans Synbiotics Insulin resistance Hyperandrogenism

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How to Cite
1.
Hariri Z, Yari Z, Nilghaz M, Mirhoseini M, Hoseini S, Abhari K, Sohrab G. Synbiotic-Containing Bacillus coagulans (GBI-30) and the Effects on Glycemic Control, Androgen Hormones and Anthropometric Indices in Women with Polycystic Ovarian Syndrome. Iran J Public Health. 2025;54(7):1540-1550.