{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T13:57:27Z","timestamp":1783605447269,"version":"3.55.0"},"reference-count":61,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,11,5]],"date-time":"2024-11-05T00:00:00Z","timestamp":1730764800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Phytotherapy Research"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>The objective of this study is to assess the impact of pomegranate supplements on insulin resistance (IR) and insulin sensitivity through a systematic review and meta\u2010analysis of randomized controlled trials (RCTs). Additionally, we aim to analyze the differences in efficacy among various pomegranate extracts and the sensitivity of different diseases to pomegranate supplementation. We conducted searches in PubMed, Embase, Web of Science, and Cochrane Library up to October 30, 2023, for relevant studies published in English. The treatment group required the intake of pomegranate extract for a minimum of 4\u2009weeks, with no restrictions on the extract type. The control group received a placebo or a treatment excluding pomegranate extract. The primary outcome was homeostatic model assessment for insulin resistance (HOMA\u2010IR) and fasting insulin (FI), and the secondary outcome was quantitative insulin sensitivity check index (QUICKI). RoB 2 was used to assess the risk of bias in the original studies. We pre\u2010specified subgroup analyses based on types of intervention, intervention duration, health condition, and intervention dose. Sensitivity analysis was conducted to validate result stability, utilizing Begg's test and Egger's test for publication bias. Data synthesis and analysis were performed using Stata 15.1 software. This study included a total of 15 RCTs with 673 participants conducted in 7 countries. Risk of bias results indicated an overall low risk of bias of the articles. Participants included healthy individuals, overweight and obese individuals, non\u2010alcoholic fatty liver disease (NAFLD) patients, type 2 diabetes (T2DM) patients, polycystic ovary syndrome (PCOS) patients, metabolic syndrome (MS) patients, and individuals with hyperlipidemia. Pomegranate extract variations included pomegranate juice (PJ), pomegranate seed oil (PSO) capsule, pomegranate\/pomegranate peel (PP) extract capsule, and pomegranate peel\u2010added bread. The control groups primarily received placebo treatments with varying dosage and frequency. No adverse reactions were reported in any of the studies. The summary results showed that compared to the control groups, pomegranate extract had no significant impact on improving HOMA\u2010IR levels in participants (WMD\u2009=\u2009\u22120.03, 95%CI: \u22120.37 to 0.31, and <jats:italic>p<\/jats:italic>\u2009=\u20090.851) and FI (WMD\u2009=\u2009\u22120.03, 95%CI: \u22120.42 to 0.36, and <jats:italic>p<\/jats:italic>\u2009=\u20090.862). Additionally, there was no significant advantage of pomegranate extract on QUICKI changes in T2DM and PCOS patients (WMD\u2009=\u20090.00, 95%CI: 0.00 to 0.01, and <jats:italic>p<\/jats:italic>\u2009=\u20090.002). Subgroup analysis results indicated that pomegranate extract could improve HOMA\u2010IR levels in PCOS patients (WMD\u2009=\u2009\u22120.42, 95%CI: \u22120.54 to \u22120.29, and <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) and FI levels in T2DM, PCOS, and NAFLD patients. Our results indicate that pomegranate extract only improves HOMA\u2010IR and FI levels in PCOS patients and FI levels in T2DM and NAFLD patients. No significant difference has been found for HOMA\u2010IR, FI, or QUICKI in other metabolic diseases. The current evidence suggests that we should interpret the value of pomegranate extract in regulating IR and sensitivity cautiously. In the future, there is a need for more rigorously designed RCTs to specifically evaluate the impact of pomegranate supplementation on insulin sensitivity in patients with NAFLD, PCOS, and T2DM.<\/jats:p>","DOI":"10.1002\/ptr.8362","type":"journal-article","created":{"date-parts":[[2024,11,5]],"date-time":"2024-11-05T13:54:17Z","timestamp":1730814857000},"page":"77-89","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Lack of Efficacy of Pomegranate Supplementation on Insulin Resistance and Sensitivity: A Systematic Review and Meta\u2010Analysis of Randomized Controlled Trials"],"prefix":"10.1002","volume":"39","author":[{"given":"Shao","family":"Yin","sequence":"first","affiliation":[{"name":"Hospital of Chengdu University of Traditional Chinese Medicine  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fengya","family":"Zhu","sequence":"additional","affiliation":[{"name":"Traditional 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