Research Summary

Analyzed using Evidence Intelligence™

Vitamin D may reduce inflammation in type 2 diabetes

Key finding

Vitamin D3 supplementation increases the serum vitamin D3 levels from the baseline (p < 0.0001).

This study investigated the effects of vitamin D3 supplementation on inflammation in type 2 diabetes patients, finding significant reductions in various inflammatory markers.

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

Vitamin D3 supplementation, Placebo

Study type

RCTs

Follow-up

Medium-Term (3–12 mo)

Primary outcome

Serum vitamin D3

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 vitamin D3 supplementation on inflammation in type 2 diabetes patients, finding significant reductions in various inflammatory markers.

Clinical relevance

Reducing inflammation is crucial for managing type 2 diabetes, as it can lead to better health outcomes and potentially lower the risk of complications. This study highlights the importance of vitamin D supplementation as a simple and effective intervention for improving inflammatory profiles in diabetic patients.

Keep in mind

The study did not specify the sample size, which may affect the generalizability of the findings. Effectiveness of vitamin D3 on platelet activation was unclear due to insufficient data. Long-term effects of vitamin D3 supplementation were not assessed.

Published in

Journal Reference

Publication details and source links for this paper.

Ebin J, Aishwarya J, Bishamber N, et al. Vitamin D Supplementation Reduces Platelet-Mediated Inflammation in Type 2 Diabetes Patients. Frontiers in Immunology. 2022;13:869591. doi:10.3389/fimmu.2022.869591

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Main Effects

Vitamin D3 supplementation increased serum vitamin D3 levels by 12.38 ng/mL (p < 0.0001).

Total 25-OH vitamin D levels increased significantly from baseline (p < 0.0001).

Serum levels of IL-18, TNF-α, and other inflammatory markers were significantly reduced (p < 0.05).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Vitamin D supplementation and Platelet activation, Serum CCL-11, Serum CCL-2, and 9 more.

This study contributes evidence to

Intervention

Vitamin D supplementation

Outcome

Platelet activation

Primary intervention

Vitamin D supplementation

Primary outcomes

Platelet activation
Serum CCL-11
Serum CCL-2

Primary intervention

Vitamin D supplementation

Primary outcomes

Platelet activation Serum CCL-11 Serum CCL-2

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: 50

Why it is useful

Contributes to 12 evidence relationships
Includes primary outcome data
Linked to 0 direct semantic evidence topics

Evidence profile

StrongIncreaseMetabolic Health

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Evidence Suggest

Vitamin D3 significantly increased serum vitamin D levels (12.38 ng/mL, p < 0.0001).
Inflammatory markers like IL-18 and TNF-α were reduced after supplementation (p < 0.05).
Total 25-OH vitamin D levels also increased significantly (p < 0.0001).

Who this applies to

Adults diagnosed with type 2 diabetes.
Patients experiencing inflammation-related complications.

Keep in Mind

Results may not be applicable to populations outside the study's demographic.
Further research is needed to confirm long-term benefits of vitamin D supplementation.
The study's findings are based on specific dosages and may vary with different regimens.

Between the Lines

The study did not specify the sample size, which may affect the generalizability of the findings.
Effectiveness of vitamin D3 on platelet activation was unclear due to insufficient data.
Long-term effects of vitamin D3 supplementation were not assessed.

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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 Vitamin D supplementation and Serum concentration of vitamin D, Vitamin D supplementation and Platelet activation.

Related evidence relationships

Explore in Evidence Archive

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

Vitamin D supplementationSerum concentration of vitamin D

Supplements

4 studies

Detailed evidence

Vitamin D supplementationPlatelet activation

Supplements

1 studies

Detailed evidence

Included in these evidence collections

Curated evidence collections and hubs this study is part of.

Serum concentration of vitamin D Evidence Hub

All studies measuring Serum concentration of vitamin D

4 studies

outcome_hub

Measures Serum concentration of vitamin D as a key outcome.

Vitamin D supplementation Evidence Hub

All studies on Vitamin D supplementation

4 studies

intervention_hub

Contributes to Vitamin D supplementation evidence base.

Platelet activation Evidence Hub

All studies measuring Platelet activation

1 studies

outcome_hub

Measures Platelet activation as a key outcome.

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

Does Vitamin D supplementation improve serum concentration of vitamin d?

Moderate Evidence

Vitamin D supplementation appears to improve Serum concentration of vitamin D.

ConsensusScore™: Results are consistent across studies.

Ranked evidence signals

1
Serum concentration of vitamin D
EvidenceScore™ Moderate | EvidenceScore™ 61.9 | strong positive | ConsensusScore™ Consistent | 1 study

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

Limitations

Only one supporting study is available.
Population details are unavailable.

View Full Evidence

Does Vitamin D supplementation improve platelet activation?

Emerging Evidence

Vitamin D supplementation appears to improve Platelet activation.

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

Ranked evidence signals

1
Platelet activation
EvidenceScore™ Emerging | EvidenceScore™ 53.0 | 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.

View Full Evidence

Does Vitamin D supplementation improve serum ccl-11?

Emerging Evidence

Vitamin D supplementation appears to improve Serum CCL-11.

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

Ranked evidence signals

1
Serum CCL-11
EvidenceScore™ Emerging | EvidenceScore™ 53.0 | 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.

View Full Evidence

Does Vitamin D supplementation improve serum ccl-2?

Emerging Evidence

Vitamin D supplementation appears to improve Serum CCL-2.

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

Ranked evidence signals

1
Serum CCL-2
EvidenceScore™ Emerging | EvidenceScore™ 53.0 | 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.

View Full Evidence

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Next steps

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All studies on Vitamin D supplementation and Serum concentration of vitamin D All studies on Vitamin D supplementation and Platelet activation All studies on Vitamin D supplementation and Serum CCL-11 All studies on Vitamin D supplementation and Serum CCL-2

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