Evidence mapPaperPMID 40813857Full record

SynthesisNutrition & diabetes2025

The effect of turmeric/curcumin supplementation on anthropometric indices in subjects with prediabetes and type 2 diabetes mellitus: A GRADE-assessed systematic review and dose-response meta-analysis of randomized controlled trials.

Mohammadreza Moradi Baniasadi, Pishva Arzhang, Azin Setayesh, Maedeh Moradi, Ensieh Nasli-Esfahani, Leila Azadbakht

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Nutrition & diabetes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 3 pooled it
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Review
  7. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Mohammadreza Moradi BaniasadiDiabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Pishva ArzhangQods Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Azin SetayeshDepartment of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
Maedeh MoradiAdelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.
Ensieh Nasli-EsfahaniDiabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Leila AzadbakhtDiabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. azadbakhtleila@gmail.com.ORCID 0000-0002-5955-6818

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effective management of diabetes, a prevalent metabolic condition globally, relies on paying close attention to anthropometric measurements, while recent years have seen a growing interest in researching the potential anti-obesity properties of turmeric/curcumin. In this systematic review and dose-response meta-analysis of randomized controlled trials, the impact of turmeric/curcumin supplementation on anthropometric indices in individuals with prediabetes and type 2 diabetes mellitus (T2DM) was assessed. PubMed, Cochrane Library, Web of Science, Scopus, and Google Scholar were searched to identify relevant records published from 1 January 1990 to 1 June 2024. Random-effects meta-analysis was performed to evaluate the weighted mean difference (WMD) and 95% confidence interval (CI), with a p-value ≤ 0.05 indicating statistical significance. Grading of Recommendations Assessment, Development and Evaluation (GRADE) was used to assess the certainty of evidence. Twenty randomized controlled trials (RCTs) were included in the meta-analysis. Pooled analysis displayed that supplementation with turmeric/curcumin significantly decreased body weight (WMD: -1.9 kg; 95% CI: -2.9 to -0.9; P ≤ 0.001; GRADE = low), waist circumference (WMD: -1.9 cm; 95% CI: -3.5 to -0.2; P = 0.024; GRADE = low), fat mass% (WMD: -2.9%; 95% CI: -5.6 to -0.1, P = 0.041; GRADE = very low), and hip circumference (WMD: -1.0 cm; 95% CI: -1.2 to -0.8; P ≤ 0.001; GRADE = moderate) but no effects on body mass index and waist-to-hip ratio in people with T2DM. In individuals with prediabetes, body weight (WMD: -2.5 kg; 95% CI: -4.8 to -0.2; P = 0.037; GRADE = moderate) and waist circumference (WMD: -2.9 cm; 95% CI: -5.3 to -0.6; P = 0.015; GRADE = moderate) were significantly lower in the turmeric/curcumin supplement-treated group than their untreated counterparts. The study found that turmeric/curcumin has a beneficial effect on some obesity indicators, which could contribute to weight management in individuals with prediabetes and T2DM. Systematic Review Registration: This study was registered at PROSPERO as CRD42023440612.

Indexed as

CurcumaCurcuminDiabetes Mellitus, Type 2Dietary SupplementsPrediabetic StateAnthropometryBody WeightHumansMiddle AgedRandomized Controlled Trials as TopicWaist CircumferenceCurcumin

Identifiers

PMID40813857
PMCPMC12354764

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.