Research Summary

Analyzed using Evidence Intelligence™

Probiotic improves metabolic profiles in type 2 diabetes patients

Key finding

IL-17 levels were significantly reduced (p < 0.05).

This study evaluated the effects of a multi-strain probiotic formula on inflammation, metabolism, and gut microbiota in patients with Type 2 Diabetes Mellitus, finding significant reductions in several inflammatory markers and metabolic indicators.

Evidence strength

Moderate confidence

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Some Concerns bias

Last updated June 22, 2026

Quick read

Study at a glance

The essential study design details in one scan.

Population

Young Adult (19–39), Middle Aged (40-64), Male, Female, Asia-Pacific (APAC), with T2 Diabetes

Intervention

Multi-strain probiotic formula, Placebo

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Primary outcome

IL-17

Comparator

Placebo Group

Plain-language summary

What this paper says

A plain-language read of the study's main message and where it applies.

Study focus

Clinical relevance

These findings suggest that probiotics could be a valuable adjunct therapy for managing inflammation and metabolic issues in Type 2 Diabetes Mellitus. By potentially lowering inflammatory markers and improving blood sugar control, probiotics may help reduce the risk of complications associated with diabetes, offering a new avenue for patient care.

Keep in mind

The sample size and demographic characteristics may limit generalizability. No long-term follow-up data was collected to assess sustained effects. The study did not explore the specific mechanisms by which probiotics exert their effects.

Published in

Journal Reference

Publication details and source links for this paper.

Sijia Z, Yan Q, Wenjing H, et al. Effects of a Multi-Strain Probiotic Formula on Inflammation, Metabolism, and Gut Microbiota in Patients with Type 2 Diabetes Mellitus: A Randomized, Double-Blind, Placebo-Controlled Trial. Food Science & Nutrition. 2026;14(4):e71735. doi:10.1002/fsn3.71735

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Main Effects

IL-17 levels were significantly reduced by 1 pg/mL (p < 0.05).

TNF-α levels were significantly reduced by 1 pg/mL (p < 0.05).

Total glycated hemoglobin (GHb) levels were significantly reduced (p < 0.05).

Fasting plasma glucose (FPG) levels were significantly reduced (p < 0.05).

Evidence network

How this study fits

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Evidence Context

This study contributes evidence to Multi-species synbiotic (12 probiotic strains + FOS prebiotic) and Fasting Plasma Glucose (FPG), HbA1c, Interleukin-17 (IL-17), and 5 more.

This study contributes evidence to

Intervention

Multi-species synbiotic (12 probiotic strains + FOS prebiotic)

Outcome

Fasting Plasma Glucose (FPG)

Evidence topic

Supplements and Nutraceuticals

Primary intervention

Multi-species synbiotic (12 probiotic strains + FOS prebiotic)

Primary outcomes

Fasting Plasma Glucose (FPG)
HbA1c
Interleukin-17 (IL-17)

Evidence topics

Supplements and Nutraceuticals Glycemic Control HbA1c Reduction Inflammatory and Vascular Markers

Primary intervention

Multi-species synbiotic (12 probiotic strains + FOS prebiotic)

Primary outcomes

Fasting Plasma Glucose (FPG)HbA1c Interleukin-17 (IL-17)

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

Evidence pairs

Relationships

Evidence topics

contributes_evidence

Editorial context

Why this study matters

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Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 72

Why it is useful

Contributes to 8 evidence relationships
Includes primary outcome data
Linked to 5 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Evidence topic

Multi-species synbiotic (12 probiotic strains + FOS prebiotic) → Tumor Necrosis Factor-alpha (TNF-α)

Evidence profile

StrongDecreaseMetabolic Health

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Evidence Suggest

IL-17 and TNF-α levels decreased significantly, indicating reduced inflammation.
Serum levels of threonine, isoleucine, and arginine were significantly reduced.
Total glycated hemoglobin and fasting plasma glucose levels showed significant improvement.

Who this applies to

Adults diagnosed with Type 2 Diabetes Mellitus.
Patients experiencing metabolic dysregulation or inflammation.

Keep in Mind

Results may not be applicable to all populations, particularly non-diabetic individuals.
The study focused on short-term effects; long-term benefits remain uncertain.
Further research is needed to confirm findings and explore mechanisms.

Between the Lines

The sample size and demographic characteristics may limit generalizability.
No long-term follow-up data was collected to assess sustained effects.
The study did not explore the specific mechanisms by which probiotics exert their effects.

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Probiotics and Synbiotics and HbA1c, Probiotics and Synbiotics and Fasting Glucose.

Related evidence relationships

Explore in Evidence Archive

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

Probiotics and SynbioticsHbA1c

Supplements

2 studies

Detailed evidence

Probiotics and SynbioticsFasting Glucose

Supplements

3 studies

Detailed evidence

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

Fasting Glucose Evidence Hub

All studies measuring Fasting Glucose

3 studies

outcome_hub

Measures Fasting Glucose as a key outcome.

HbA1c Evidence Hub

All studies measuring HbA1c

2 studies

outcome_hub

Measures HbA1c as a key outcome.

Probiotics and Synbiotics Evidence Hub

All studies on Probiotics and Synbiotics

2 studies

intervention_hub

Contributes to Probiotics and Synbiotics evidence base.

Recent Diabetes Research

Latest published studies

recency_collection

Published within the last 2 years.

Generated from the study's connected evidence using Evidence Intelligence™.

Does Probiotics and Synbiotics improve HbA1c?

Emerging Evidence

Probiotics and Synbiotics appears to improve HbA1c.

ConsensusScore™: Results are consistent across studies.

Ranked evidence signals

1
HbA1c
EvidenceScore™ Emerging | EvidenceScore™ 55.9 | strong positive | ConsensusScore™ Consistent | 1 study

Why this answer: This answer is based on 10 supporting studies with consistent results and a positive effect signal.

Limitations

Population details are unavailable.

View Full Evidence

Does Probiotics and Synbiotics improve fasting glucose?

Emerging Evidence

Probiotics and Synbiotics may improve Fasting Glucose.

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

1
Fasting Plasma Glucose (FPG)
EvidenceScore™ Emerging | EvidenceScore™ 54.3 | moderate positive | ConsensusScore™ Generally Consistent | 1 study

Why this answer: This answer is based on 9 supporting studies and existing graph evidence signals.

Limitations

Consistency cannot yet be determined.
Population details are unavailable.

View Full Evidence

Does Probiotics and Synbiotics improve inflammatory markers?

Emerging Evidence

Probiotics and Synbiotics appears to improve Inflammatory Markers.

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

1
Tumor Necrosis Factor-alpha (TNF-α)
EvidenceScore™ Emerging | EvidenceScore™ 51.7 | strong positive | ConsensusScore™ Unclear | 1 study

Why this answer: This answer is based on 3 supporting studies and existing graph evidence signals.

Limitations

Consistency cannot yet be determined.
Population details are unavailable.

View Full Evidence

Does Multi-species synbiotic (12 probiotic strains + FOS prebiotic) improve interleukin-17 (il-17)?

Emerging Evidence

Multi-species synbiotic (12 probiotic strains + FOS prebiotic) appears to improve Interleukin-17 (IL-17).

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

1
Interleukin-17 (IL-17)
EvidenceScore™ Emerging | EvidenceScore™ 51.7 | strong positive | ConsensusScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

Only one supporting study is available.
Consistency cannot yet be determined.
Population details are unavailable.

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Next steps

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Evidence topics

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Supplements and Nutraceuticals Evidence Hub Glycemic Control Evidence Hub HbA1c Reduction Evidence Hub Inflammatory and Vascular Markers Evidence Hub

Explore in archive

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All studies on Multi-species synbiotic (12 probiotic strains + FOS prebiotic) and HbA1c All studies on Multi-species synbiotic (12 probiotic strains + FOS prebiotic) and Fasting Plasma Glucose (FPG)All studies on Multi-species synbiotic (12 probiotic strains + FOS prebiotic) and Interleukin-17 (IL-17)All studies on Multi-species synbiotic (12 probiotic strains + FOS prebiotic) and Serum arginine

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