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Research Summary
Analyzed using Evidence Intelligence™

Black tea with inulin improves glucose control in type 2 diabetes

Powered by the Dediabetes Evidence Intelligence™ framework

Last updated September 2, 2026

Key finding

Compared to placebo, BTID significantly reduced the change in glycaemia at 30 minutes.

This study examined the effects of black tea drinks with inulin and dextrin on postprandial plasma glucose in patients with type 2 diabetes, finding significant reductions in glycaemia compared to a placebo.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Short-Term (≤3 mo)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

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

Study focus

This study examined the effects of black tea drinks with inulin and dextrin on postprandial plasma glucose in patients with type 2 diabetes, finding significant reductions in glycaemia compared to a placebo.

Clinical relevance

These findings are significant for managing type 2 diabetes, as controlling postprandial glycaemia is crucial for preventing complications. The use of black tea drinks with inulin and dextrin could offer a dietary strategy to improve glycaemic control in diabetic patients, potentially leading to better long-term health outcomes.

Keep in mind

The sample size and demographic characteristics may limit generalizability. The study duration was short, potentially affecting long-term outcomes. Effectiveness in diverse populations remains unclear.

Published in

Journal Reference

Publication details and source links for this paper.

Si C, Danfeng P, Yingyi S, et al. Effects of Black Tea Drinks with Inulin and Dextrin on Postprandial Plasma Glucose in Patients with Type 2 Diabetes. Nutrition & Diabetes. 2024;14:95. doi:10.1038/s41387-024-00351-w

View DOIView on PubMedView on PMC

Main Effects

BTID significantly reduced glycaemia at 30 minutes by -1.5 mmol/L (p = 0.01).

BTID significantly reduced glycaemia at 1 hour by -1.2 mmol/L (p = 0.01).

The proportion of patients with minor PG fluctuations was 53.1% in the BTID group compared to 28.1% in the placebo group.

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Black tea drinks with inulin and dextrin (BTID) and Decreased risk of significant PG fluctuations after consuming black tea with inulin, Incidence of non-cardiovascular death, Mixed-meal-test glycaemia change at 1 hour, and 5 more.

This study contributes evidence to

Intervention

Black tea drinks with inulin and dextrin (BTID)

Outcome

Decreased risk of significant PG fluctuations after consuming black tea with inulin

Primary intervention

Black tea drinks with inulin and dextrin (BTID)

Primary outcomes

  • Decreased risk of significant PG fluctuations after consuming black tea with inulin
  • Incidence of non-cardiovascular death
  • Mixed-meal-test glycaemia change at 1 hour

Primary intervention

Black tea drinks with inulin and dextrin (BTID)

Primary outcomes

Decreased risk of significant PG fluctuations after consuming black tea with inulinIncidence of non-cardiovascular deathMixed-meal-test glycaemia change at 1 hour

Evidence relationships

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

8
Evidence pairs
8
Relationships
0
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

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: 50

0

Related topics

8

Evidence pairs

0

Related studies

Why it is useful

  • Contributes to 8 evidence relationships
  • Includes primary outcome data
  • Linked to 0 direct semantic evidence topics

Core evidence

Study findings

The primary outcomes reported in this study.

Decreased risk of significant PG fluctuations after consuming black tea with inulin

Black tea drinks with inulin and dextrin (BTID) → Decreased risk of significant PG fluctuations after consuming black tea with inulin

Black tea drinks with inulin and dextrin (BTID) → Decreased risk of significant PG fluctuations after consuming black tea with inulin

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Incidence of non-cardiovascular death

Black tea drinks with inulin and dextrin (BTID) → Incidence of non-cardiovascular death

Black tea drinks with inulin and dextrin (BTID) → Incidence of non-cardiovascular death

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Mixed-meal-test glycaemia change at 1 hour

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 1 hour

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 1 hour

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Mixed-meal-test glycaemia change at 2 hours

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 2 hours

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 2 hours

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Mixed-meal-test glycaemia change at 3 hours

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 3 hours

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 3 hours

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Mixed-meal-test glycaemia change at 30 minutes

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 30 minutes

Black tea drinks with inulin and dextrin (BTID) → Mixed-meal-test glycaemia change at 30 minutes

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Participant satisfaction with continuous glucose monitoring (CGM)

Black tea drinks with inulin and dextrin (BTID) → Participant satisfaction with continuous glucose monitoring (CGM)

Black tea drinks with inulin and dextrin (BTID) → Participant satisfaction with continuous glucose monitoring (CGM)

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Plasma glucose area under the curve (AUC)

Black tea drinks with inulin and dextrin (BTID) → Plasma glucose area under the curve (AUC)

Black tea drinks with inulin and dextrin (BTID) → Plasma glucose area under the curve (AUC)

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Evidence Library

Build your evidence library

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evidence suggest

Evidence Suggest

  • BTID reduced glycaemia at 2 hours by -1 mmol/L (p = 0.01).
  • Risk of significant PG fluctuations decreased by 65.5% (odds ratio 0.345, p = 0.044).
  • Areas under the curve for PG were significantly smaller after BTID.
who this applies

Who this applies to

  • Adults diagnosed with type 2 diabetes.
  • Individuals experiencing postprandial hyperglycaemia.
keep in mind

Keep in Mind

  • Results may not apply to non-diabetic populations.
  • Further studies are needed to confirm long-term effects.
  • Dietary interventions should complement standard diabetes management.
between the lines

Between the Lines

  • The sample size and demographic characteristics may limit generalizability.
  • The study duration was short, potentially affecting long-term outcomes.
  • Effectiveness in diverse populations remains unclear.

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

Powered by the Dediabetes Evidence Intelligence™ framework

This study contributes to evidence on Black tea drinks with inulin and dextrin (BTID) and Incidence of non-cardiovascular death, Black tea drinks with inulin and dextrin (BTID) and Mixed-meal-test glycaemia change at 1 hour.

Related evidence relationships

Explore in Evidence Explorer

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

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

Black tea drinks with inulin and dextrin (BTID) Evidence Hub

All studies on Black tea drinks with inulin and dextrin (BTID)

1 studies
intervention_hub

Contributes to Black tea drinks with inulin and dextrin (BTID) evidence base.

Incidence of non-cardiovascular death Evidence Hub

All studies measuring Incidence of non-cardiovascular death

1 studies
outcome_hub

Measures Incidence of non-cardiovascular death as a key outcome.

Mixed-meal-test glycaemia change at 1 hour Evidence Hub

All studies measuring Mixed-meal-test glycaemia change at 1 hour

1 studies
outcome_hub

Measures Mixed-meal-test glycaemia change at 1 hour as a key outcome.

Recent Diabetes Research

Latest published studies

recency_collection

Published within the last 2 years.

Explore more in Evidence Explorer

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All studies on Black tea drinks with inulin and dextrin (BTID) and Incidence of non-cardiovascular death

Intervention: Black tea drinks with inulin and dextrin (BTID)Outcome: Incidence of non-cardiovascular death

1 results

All studies on Black tea drinks with inulin and dextrin (BTID) and Mixed-meal-test glycaemia change at 1 hour

Intervention: Black tea drinks with inulin and dextrin (BTID)Outcome: Mixed-meal-test glycaemia change at 1 hour

1 results

All studies on Black tea drinks with inulin and dextrin (BTID)

Intervention: Black tea drinks with inulin and dextrin (BTID)

1 results

All studies measuring Incidence of non-cardiovascular death

Outcome: Incidence of non-cardiovascular death

1 results

All studies measuring Mixed-meal-test glycaemia change at 1 hour

Outcome: Mixed-meal-test glycaemia change at 1 hour

1 results

Questions answered by this study

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

Does Black tea drinks with inulin and dextrin (BTID) reduce decreased risk of significant pg fluctuations after consuming black tea with inulin?

Emerging Evidence

Black tea drinks with inulin and dextrin (BTID) appears to reduce decreased risk of significant pg fluctuations after consuming black tea with inulin.

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

Ranked evidence signals

  1. 1

    Decreased risk of significant PG fluctuations after consuming black tea with inulin

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

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

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence

Does Black tea drinks with inulin and dextrin (BTID) reduce incidence of non-cardiovascular death?

Emerging Evidence

Black tea drinks with inulin and dextrin (BTID) appears to reduce incidence of non-cardiovascular death.

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

Ranked evidence signals

  1. 1

    Incidence of non-cardiovascular death

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

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

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence

Does Black tea drinks with inulin and dextrin (BTID) improve mixed-meal-test glycaemia change at 1 hour?

Emerging Evidence

Black tea drinks with inulin and dextrin (BTID) appears to improve mixed-meal-test glycaemia change at 1 hour.

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

Ranked evidence signals

  1. 1

    Mixed-meal-test glycaemia change at 1 hour

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

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

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence

Does Black tea drinks with inulin and dextrin (BTID) improve mixed-meal-test glycaemia change at 2 hours?

Emerging Evidence

Black tea drinks with inulin and dextrin (BTID) appears to improve mixed-meal-test glycaemia change at 2 hours.

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

Ranked evidence signals

  1. 1

    Mixed-meal-test glycaemia change at 2 hours

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

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

Limitations

  • Only one supporting study is available.
1 supporting study
View Full Evidence
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Next steps

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Explore in Evidence Explorer

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All studies on Black tea drinks with inulin and dextrin (BTID) and Decreased risk of significant PG fluctuations after consuming black tea with inulinAll studies on Black tea drinks with inulin and dextrin (BTID) and Incidence of non-cardiovascular deathAll studies on Black tea drinks with inulin and dextrin (BTID) and Mixed-meal-test glycaemia change at 1 hourAll studies on Black tea drinks with inulin and dextrin (BTID) and Mixed-meal-test glycaemia change at 2 hours

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