Sumac review reports improved blood sugar and lipid markers
Short trials found changes in metabolic risk markers, while inflammation and other cardiovascular risk factors showed no statistically significant improvement.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Across the included trials, sumac supplements improved blood sugar and blood lipid measures compared with placebo. Other cardiovascular risk factors did not show statistically significant changes, including inflammatory markers. These are findings about risk markers over a short study period; the abstract does not report whether supplementation prevented heart attacks or other cardiovascular events.
The abstract gives no individual outcome estimates, confidence intervals, doses or participant health profiles. It therefore cannot establish the size or clinical importance of the reported changes, or identify an optimal dose or duration.
What researchers found
Blood sugar and blood lipid profiles
Sumac versus placebo over 4–12 weeks. Changes were pooled as standardized mean differences; numerical estimates were not provided.
What the review assessed
Researchers combined randomized trials to examine body measurements, blood sugar, blood lipids and inflammatory markers. They also explored whether dose and treatment length related to outcomes, but the abstract provides no dose-response results.
What the findings can establish
The improvements concern laboratory risk markers, with no numerical estimates to show their size or practical importance. Nonsignificant findings for other measures leave uncertainty as well; they do not prove that sumac has no effect.
The original publication
Sumac (Rhus coriaria L.) and Human Metabolic Health: A Systematic Review and Meta-Analysis.
Jafari A, ParsiNezhad B, AhmadianMoghaddam M et al.
Endocrinol Diabetes Metab · 2026
- PubMed ID
- 41329614
- Record checked
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