Última actualización 5 de julio de 2026
Key finding
FBS decreased significantly from 147 (122, 167) to 100 (92, 121) with p=0.002.
This study investigated the anti-diabetic effects of sumac in patients with type 2 diabetes, finding significant improvements in fasting blood sugar and HbA1C levels.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Extended (5–20+ y)
Risk of bias
Some Concerns
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
This study investigated the anti-diabetic effects of sumac in patients with type 2 diabetes, finding significant improvements in fasting blood sugar and HbA1C levels.
These findings suggest that sumac could be a beneficial dietary supplement for managing blood sugar levels in type 2 diabetes patients. As diabetes management is crucial for preventing complications, incorporating natural supplements like sumac may enhance treatment strategies.
The study did not assess long-term effects of sumac supplementation. Sample size and demographic diversity may limit generalizability. No significant changes were observed in total cholesterol, LDL, or triglycerides.
Published in
Publication details and source links for this paper.
Hossein A, Soleiman M, Mohsen Y, Siamak N, Shervin A, AliSina S. The anti-diabetic effect of sumac in patients with type 2 diabetes: A double-blind randomized controlled trial. Caspian Journal of Internal Medicine. 2025;16(3):417-423. doi:10.22088/cjim.16.3.417
Fasting Blood Sugar decreased significantly from 147 mg/dL to 100 mg/dL (p=0.002).
HbA1C decreased significantly from 7.74% to 6.47% (p=0.007).
HDL Cholesterol increased significantly from 46 mg/dL to 50 mg/dL (p<0.001).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Sumac supplement and Fasting blood sugar (FBS), HDL cholesterol, HbA1c, and 3 more.
This study contributes evidence to
Primary intervention
Sumac supplement
Primary outcomes
Evidence topics
Primary intervention
Primary outcomes
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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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.
2
Related topics
6
Evidence pairs
555
Related studies
Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
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Evidencia principal
Tema de evidencia
matched_outcome
Evidencia relacionada
Tema de evidencia
Guardar evidencia
Core evidence
The primary outcomes reported in this study.
Sumac supplement → Fasting blood sugar (FBS)
Sumac supplement → Fasting blood sugar (FBS)
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Sumac supplement and Fasting Glucose, Sumac supplement and HbA1c.
This study contributes to the evidence on the following intervention-outcome relationships.
Supplements
Supplements
Curated evidence collections and hubs this study is part of.
All studies measuring Adipokine and Angiogenic Markers
Measures Adipokine and Angiogenic Markers as a key outcome.
All studies measuring Fasting Glucose
Measures Fasting Glucose as a key outcome.
All studies measuring HbA1c
Measures HbA1c as a key outcome.
All studies on Sumac supplement
Contributes to Sumac supplement evidence base.
Latest published studies
Published within the last 2 years.
Jump to pre-filtered views in Evidence Explorer.
1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Sumac supplement appears to improve Fasting blood sugar (FBS).
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Fasting blood sugar (FBS)
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Sumac supplement appears to improve HDL cholesterol.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
HDL cholesterol
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Sumac supplement appears to improve HbA1c.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
HbA1c
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Current evidence does not show a clear benefit of Sumac supplement for LDL cholesterol.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
LDL cholesterol
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | neutral | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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