Resumen de Investigación

Probiotics reduce GI side effects of metformin without improving metabolic efficacy

Moderate confidence
Low bias
Última actualización 19 de junio de 2026

Conclusión Clave:

This study investigated whether multi-strain probiotic supplementation enhances the metabolic effects of metformin in women with elevated HOMA-IR, finding no significant improvements.

Estudio de un Vistazo

Qué se estudió

Multi-strain probiotic added to metformin in adults with type 2 diabetes.

Participantes

Young Adult (19–39), Middle Aged (40-64)

Male, Female

with T2 Diabetes

Intervención

Metformin + Multi-strain Probiotic

Resultados

Gastrointestinal symptoms frequency, Abnormal stool frequency, Hard or lumpy stools, Fasting Plasma Glucose (FPG), Insulin resistance, RBP4, Total cholesterol

Financiamiento

No Patrocinado por la Industria

Guarda este estudio y agrega notas a tu biblioteca de investigación.

Efectos Principales

Probiotic group reported 26% gastrointestinal symptoms vs. 52% in placebo (p < 0.05).

Probiotic group reported 18% abnormal stool frequency vs. 51% in placebo (p < 0.05).

No significant differences in fasting plasma glucose or insulin resistance between groups.

Resumen de Evidencia

InterventionOutcomeMeasured ChangeStudy Effect
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Safety
Abnormal stool frequency
(Safety)
Decrease
Strong
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Glycemic Control
Fasting Plasma Glucose (FPG)
(Glycemic Control)
No Change
Unclear
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Safety
Gastrointestinal symptoms frequency
(Safety)
Decrease
Strong
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Safety
Hard or lumpy stools
(Safety)
Decrease
Strong
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Metabolic Health
Insulin resistance
(Metabolic Health)
No Change
Unclear
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Metabolic Health
Retinol-Binding Protein 4 (RBP4)
(Metabolic Health)
No Change
Unclear
Supplements
Multi-species synbiotic (12 probiotic strains + FOS prebiotic)
(Supplements)
Metabolic Health
Total cholesterol
(Metabolic Health)
No Change
Unclear

Unlock Full Evidence Analysis

Create a free account to access effectiveness ratings, evidence strength and depth scores, consistency analysis, and direct links to all supporting studies.

evidence suggest

La Evidencia Sugiere

  • Probiotic supplementation reduced gastrointestinal symptoms by 26%.
  • Abnormal stool frequency decreased by 33% in the probiotic group.
  • No significant changes in metabolic markers like fasting plasma glucose.
who this applies

A quién se aplica

  • Women diagnosed with insulin resistance or elevated HOMA-IR.
  • Patients currently prescribed metformin for diabetes management.
keep in mind

Tener en Cuenta

  • Results may not apply to men or other populations.
  • The study did not assess long-term effects of probiotic use.
  • Further research is needed to explore different probiotic strains or dosages.
between the lines

Entre Líneas

  • Limited to women with elevated HOMA-IR, affecting generalizability.
  • Small sample size may limit the robustness of findings.
  • Short duration of the study may not capture long-term effects.

Unlock Full Analysis

Create a free account to unlock the bias score, detailed effectiveness analysis, and clinical outcomes for this study.

Already have an account?

Referencia de la Revista

Marzena R, Agnieszka B, Katarzyna M, et al. Multi-strain Probiotic Supplementation Does Not Enhance Metabolic Efficacy of Metformin in Women with Elevated HOMA-IR. Frontiers in Endocrinology. 2026;17:1765741. doi:10.3389/fendo.2026.1765741

Connected Evidence

Discover how this study fits into the broader diabetes evidence landscape.

This study contributes to evidence on Probiotics and Synbiotics and Adverse Events, Probiotics and Synbiotics and Adverse Events.

Relaciones de evidencia relacionadas

Explore in Evidence Archive

This study contributes to the evidence on the following intervention–outcome relationships.

No ads. No tracking.

Focused on evidence, not advertising.

Secure & private

Your data is always protected.

Always up to date

New studies added every day.