Research Summary
Analyzed using Evidence Intelligence™

Cocoa supplementation may improve diabetic neuropathy symptoms in type 2 diabetes.

Key finding

In the cocoa group, the TCSS decreased by 2.63 points.

This study investigated the effects of cocoa supplementation on diabetic neuropathy in individuals with Type 2 Diabetes. Results indicated no significant differences between cocoa and placebo groups.

Evidence strength

Moderate confidence

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Some Concerns bias
Last updated July 6, 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

Cocoa supplementation, Placebo (methylcellulose)

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Primary outcome

Toronto Clinical Scoring System (TCSS)

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

This study investigated the effects of cocoa supplementation on diabetic neuropathy in individuals with Type 2 Diabetes. Results indicated no significant differences between cocoa and placebo groups.

Clinical relevance

Understanding the effectiveness of dietary interventions like cocoa supplementation is crucial for managing diabetic neuropathy. If cocoa had shown significant benefits, it could have offered a simple dietary option for patients. However, the lack of significant findings indicates that further research is needed to explore effective treatments for this condition.

Keep in mind

No significant differences were found between groups. Sample size and demographic characteristics were not specified. The study's findings may not be generalizable to all populations with Type 2 Diabetes.

Published in

Journal Reference

Publication details and source links for this paper.

Rebeca K, Gabriela G, Luisa FS, et al. The Effect of Cocoa Supplementation on Diabetic Neuropathy in Individuals with Type 2 Diabetes: A Randomized Controlled Trial. International Journal of Molecular Sciences. 2025;26(16):8033. doi:10.3390/ijms26168033

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Main Effects

The TCSS decreased by 2.63 points in the cocoa group versus 1.84 points in the placebo group (p > 0.05).

The BEST score decreased by 1.45 points in the cocoa group compared to a 2.21 point decrease in the placebo group (p > 0.05).

Quality-of-Life questionnaire scores decreased by 9.2 points in the cocoa group, with no significant difference from the placebo group (p = 0.501).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Cocoa supplementation and BEST score, Quality of life, Toronto Clinical Scoring System (TCSS).

This study contributes evidence to

Primary intervention

Cocoa supplementation

Primary outcomes

  • BEST score
  • Quality of life
  • Toronto Clinical Scoring System (TCSS)

Evidence relationships

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

3
Evidence pairs
3
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: 54

0

Related topics

3

Evidence pairs

0

Related studies

Why it is useful

  • Contributes to 3 evidence relationships
  • Includes primary outcome data
  • Linked to 0 direct semantic evidence topics

Core evidence

Study findings

The primary outcomes reported in this study.

NoneDecrease

BEST score

Cocoa supplementation → BEST score

Cocoa supplementation → BEST score

Evidence profile

NoneDecreaseClinical Outcomes
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NoneDecrease

Quality of life

Cocoa supplementation → Quality of life

Cocoa supplementation → Quality of life

Evidence profile

NoneDecreasePatient-Reported
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NoneDecrease

Toronto Clinical Scoring System (TCSS)

Cocoa supplementation → Toronto Clinical Scoring System (TCSS)

Cocoa supplementation → Toronto Clinical Scoring System (TCSS)

Evidence profile

NoneDecreaseClinical Outcomes
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evidence suggest

Evidence Suggest

  • Cocoa group showed a TCSS decrease of 2.63 points, but not significant.
  • BEST score decreased by 1.45 points in cocoa group, also not significant.
  • Quality-of-Life scores decreased by 9.2 points in cocoa group, with no significant difference.
who this applies

Who this applies to

  • Adults diagnosed with Type 2 Diabetes.
  • Individuals experiencing diabetic neuropathy symptoms.
keep in mind

Keep in Mind

  • The study did not find significant benefits from cocoa supplementation.
  • Results may not apply to all individuals with Type 2 Diabetes.
  • Further research is needed to explore effective treatments for diabetic neuropathy.
between the lines

Between the Lines

  • No significant differences were found between groups.
  • Sample size and demographic characteristics were not specified.
  • The study's findings may not be generalizable to all populations with Type 2 Diabetes.

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

Questions answered by this study

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

Does Cocoa supplementation improve best score?

Limited Evidence

Current evidence does not show a clear benefit of Cocoa supplementation for BEST score.

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

Ranked evidence signals

  1. 1

    BEST score

    EvidenceScore™ Limited | EvidenceScore™ 34.2 | neutral | 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.
1 supporting studyUpdated: Jul 2026

Does Cocoa supplementation improve quality of life?

Limited Evidence

Current evidence does not show a clear benefit of Cocoa supplementation for Quality of life.

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

Ranked evidence signals

  1. 1

    Quality of life

    EvidenceScore™ Limited | EvidenceScore™ 34.2 | neutral | 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.
1 supporting studyUpdated: Jul 2026

Does Cocoa supplementation improve toronto clinical scoring system (tcss)?

Limited Evidence

Current evidence does not show a clear benefit of Cocoa supplementation for Toronto Clinical Scoring System (TCSS).

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

Ranked evidence signals

  1. 1

    Toronto Clinical Scoring System (TCSS)

    EvidenceScore™ Limited | EvidenceScore™ 34.2 | neutral | 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.
1 supporting studyUpdated: Jul 2026
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