Ginkgo
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Evidence Summary
Ginkgo biloba is extensively studied for its potential effects on cognitive function, dementia, and vascular conditions. While there is a high volume of meta-analyses and systematic reviews, the overall evidence for its efficacy remains inconsistent across various neurological and circulatory disorders.
Evidence by Condition
Large-scale Cochrane reviews and meta-analyses show mixed or inconclusive results regarding its ability to prevent or treat dementia and cognitive impairment.
Systematic reviews indicate insufficient evidence to support the use of Ginkgo for tinnitus.
Meta-analyses have found no significant benefit for the treatment of intermittent claudication.
Meta-analysis suggests potential efficacy and safety in patients experiencing acute ischemic stroke.
Effective Doses
Dose ranges are not specified in the provided research summaries.
Key Findings
- Large-scale Cochrane reviews (2026, 2009) provide mixed evidence for Ginkgo's role in cognitive impairment and dementia (PMID: 41641880, 19160216).
- Systematic reviews indicate insufficient evidence for the efficacy of Ginkgo in treating tinnitus (PMID: 23543524, 36383762).
- Meta-analysis suggests potential efficacy and safety in patients with acute ischemic stroke (PMID: 32349519).
- Research indicates no significant benefit for intermittent claudication (PMID: 23744597).
Limitations
There is a lack of adequately powered clinical trials specifically testing the effect of Ginkgo biloba on the incidence of dementia (PMID: 19017911).
Safety & Interactions
The provided research summaries do not explicitly list specific contraindications or drug interactions.
AI-generated summary from 183 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Drug-Supplement Interactions
⚠️ This information is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider before combining supplements with medications.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 99% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 80% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 4% | Tier D (Unknown) | ✅ Supported |
| Approved Health | 0% | Tier A (FDA Approved Health Claim (21 CFR 101.9)) | ✅ Supported |
| No Claim | 0% | Tier D (No claim on label) | ✅ Supported |
🏛️ NIH ODS Factsheet
Research by Topic
⚠️ FDA Safety Data
Research Evidence (183)
**Wieland et al., 2026** | Cochrane Database Syst Rev | Meta Analysis Wieland Lisa S, Ludeman Emilie, ... Amri Hakima. Ginkgo biloba for cognitive impairment and dementia. Cochrane Database Syst Rev. 2026-Feb-05;2(2):CD013661. doi:10.1002/14651858.CD...
**Birks et al., 2009** | Cochrane Database Syst Rev | Meta Analysis Birks Jacqueline, Grimley Evans John. Ginkgo biloba for cognitive impairment and dementia. Cochrane Database Syst Rev. 2009-Jan-21(1):CD003120. doi:10.1002/14651858.CD003120.pub3 BAC...
**Hilton et al., 2013** | Cochrane Database Syst Rev | Meta Analysis Hilton Malcolm P, Zimmermann Eleanor F, Hunt William T. Ginkgo biloba for tinnitus. Cochrane Database Syst Rev. 2013-Mar-28;2013(3):CD003852. doi:10.1002/14651858.CD003852.pub3 BACK...
**Sereda et al., 2022** | Cochrane Database Syst Rev | Systematic Review Sereda Magdalena, Xia Jun, ... Hoare Derek J. Ginkgo biloba for tinnitus. Cochrane Database Syst Rev. 2022-Nov-16;11(11):CD013514. doi:10.1002/14651858.CD013514.pub2 BACKGROUND:...
CONTEXT: Ginkgo biloba is widely used for its potential effects on memory and cognition. To date, adequately powered clinical trials testing the effect of G. biloba on dementia incidence are lacking. OBJECTIVE: To determine effectiveness of G. biloba...
OBJECTIVE: To conduct a meta-analysis of the effectiveness and safety of ginkgo biloba preparations combined with donepezil hydrochloride vs. donepezil for the treatment of Alzheimer's disease (AD). METHODS: Three English databases (Cochrane Library,...
**Nicolaï et al., 2013** | Cochrane Database Syst Rev | Meta Analysis Nicolaï Saskia P A, Kruidenier Lotte M, ... Teijink Joep A W. Ginkgo biloba for intermittent claudication. Cochrane Database Syst Rev. 2013-Jun-06;2013(6):CD006888. doi:10.1002/146...
**Lai et al., 2020** | Front Aging Neurosci | Systematic Review Lai Xin, Wen Hao, ... Tang Chunzhi. The Comparative Efficacy of Multiple Interventions for Mild Cognitive Impairment in Alzheimer's Disease: A Bayesian Network Meta-Analysis. Front Aging...
**Tiemtad et al., 2026** | Phytomedicine | Meta Analysis Tiemtad Pailada, Ingkaninan Kornkanok, ... Dhippayom Teerapon. Comparative effects of Bacopa monnieri and Ginkgo biloba on cognitive functions: A systematic review and network meta-analysis. Ph...
**Nicolaï et al., 2009** | Cochrane Database Syst Rev | Meta Analysis Nicolaï Saskia P A, Kruidenier Lotte M, ... Teijink Joep A W. Ginkgo biloba for intermittent claudication. Cochrane Database Syst Rev. 2009-Apr-15(2):CD006888. doi:10.1002/14651858...
**Laver et al., 2016** | BMJ Open | Systematic Review Laver Kate, Dyer Suzanne, ... Crotty Maria. Interventions to delay functional decline in people with dementia: a systematic review of systematic reviews. BMJ Open. 2016-Apr-27;6(4):e010767. doi:10...
**Tsai et al., 2018** | BMJ Open | Meta Analysis Tsai Tou-Yuan, Wang Shih-Hao, ... Su Yung-Cheng. Ginkgo biloba extract for prevention of acute mountain sickness: a systematic review and meta-analysis of randomised controlled trials. BMJ Open. 2018-A...
**He et al., 2013** | Cochrane Database Syst Rev | Systematic Review He Dian, Zhang Yun, ... Zhou Hongyu. Pharmacological treatment for memory disorder in multiple sclerosis. Cochrane Database Syst Rev. 2013-Dec-17;2013(12):CD008876. doi:10.1002/1465...
**Chong et al., 2020** | Am J Chin Med | Meta Analysis Chong Phui Zee, Ng Huey Ying, ... Lee Shaun Wen Huey. Efficacy and Safety of Ginkgo biloba in Patients with Acute Ischemic Stroke: A Systematic Review and Meta-Analysis. Am J Chin Med. 2020;48(3)...
BACKGROUND: Research into Ginkgo biloba has been ongoing for many years, while the benefit and adverse effects of Ginkgo biloba extract EGb761 for cognitive impairment and dementia has been discussed controversially. OBJECTIVE: To discuss new evidenc...
**Zhan et al., 2021** | Oxid Med Cell Longev | Meta Analysis Zhan Min, Sun Linjuan, ... Liao Xing. EGb in the Treatment for Patients with VCI: A Systematic Review and Meta-Analysis. Oxid Med Cell Longev. 2021;2021:8787684. doi:10.1155/2021/8787684 BA...
(1) Background: Ginkgo biloba extract (GBE) has been widely used to treat central nervous system and cardiovascular diseases. Accumulating evidence has revealed the therapeutic potential of GBE against Alzheimer's disease (AD); however, no systematic...
**Nimmons et al., 2024** | Neurosci Biobehav Rev | Meta Analysis Nimmons Danielle, Aker Narin, ... Walters Kate. Clinical effectiveness of pharmacological and non-pharmacological treatments for the management of anxiety in community dwelling people l...
**Masserini et al., 2025** | Alzheimers Dement | Meta Analysis Masserini Federico, Gendarini Claudia, ... Pantoni Leonardo. Therapeutic strategies in vascular cognitive impairment: A systematic review and meta-analysis. Alzheimers Dement. 2025-Nov;21...
**Evans et al., 2013** | Cochrane Database Syst Rev | Systematic Review Evans Jennifer R. Ginkgo biloba extract for age-related macular degeneration. Cochrane Database Syst Rev. 2013-Jan-31;2013(1):CD001775. doi:10.1002/14651858.CD001775.pub2 BACKGRO...
**Sun et al., 2015** | Chin J Integr Med | Meta Analysis Sun Tian, Wang Xian, Xu Hao. Ginkgo Biloba extract for angina pectoris: a systematic review. Chin J Integr Med. 2015-Jul;21(7):542-50. doi:10.1007/s11655-015-2070-0 OBJECTIVE: To evaluate the e...
**Ji et al., 2020** | Medicine (Baltimore) | Meta Analysis Ji Hongjian, Zhou Xiaohua, ... Yao Shuai. Ginkgol Biloba extract as an adjunctive treatment for ischemic stroke: A systematic review and meta-analysis of randomized clinical trials. Medicine ...
BACKGROUND: The benefit of Ginkgo biloba has been discussed controversially. The aim of this review was to assess the effects of Ginkgo biloba in Alzheimer's disease as well as vascular and mixed dementia covering a variety of outcome domains. METHOD...
**Savaskan et al., 2018** | Int Psychogeriatr | Meta Analysis Savaskan Egemen, Mueller Heiko, ... Gauthier Serge. Treatment effects of Ginkgo biloba extract EGb 761® on the spectrum of behavioral and psychological symptoms of dementia: meta-analysis ...
**Bhidayasiri et al., 2018** | J Neurol Sci | Systematic Review Bhidayasiri Roongroj, Jitkritsadakul Onanong, ... Fahn Stanley. Updating the recommendations for treatment of tardive syndromes: A systematic review of new evidence and practical treatme...
**Tan et al., 2018** | Chin J Integr Med | Meta Analysis Tan Di, Wu Jia-Rui, ... Zhang Bing. Ginkgo Leaf Extract and Dipyridamole Injection as Adjuvant Treatment for Angina Pectoris: A Meta-Analysis of 41 Randomized Controlled Trials. Chin J Integr M...
**Jialiken et al., 2021** | Medicine (Baltimore) | Meta Analysis Jialiken Dinala, Qian Lichao, ... Zou Chong. Combined therapy of hypertensive nephropathy with ginkgo leaf extract and dipyridamole injection and antihypertensive drugs: A systematic re...
**Cheng et al., 2022** | Mol Nutr Food Res | Meta Analysis Cheng Nancy, Bell Lynne, ... Williams Claire M. Dietary Flavonoids and Human Cognition: A Meta-Analysis. Mol Nutr Food Res. 2022-Nov;66(21):e2100976. doi:10.1002/mnfr.202100976 Improving cogn...
BACKGROUND: Mild dementia is distressing for patients and their relatives. Due to its chronic and progressive nature, healthcare systems are at risk of being overwhelmed by the increasing number of affected patients. Thus, there is a need for safe an...
**Wu et al., 2025** | Nutr Neurosci | Meta Analysis Wu Zi-Ming, Wu Wei, ... Yao Min. Neuroprotective effect and possible mechanisms of the extract of ginkgo biloba for spinal cord injury in experimental animal: a meta-analysis and systematic review. ...
**Zeng et al., 2005** | Cochrane Database Syst Rev | Meta Analysis Zeng X, Liu M, ... Asplund K. Ginkgo biloba for acute ischaemic stroke. Cochrane Database Syst Rev. 2005-Oct-19;2005(4):CD003691 BACKGROUND: Ginkgo biloba extract is widely used in th...
BACKGROUND: Ginkgo biloba is a natural medicine used for cognitive impairment and Alzheimer's disease. The objective of this review is to explore the effectiveness and safety of Ginkgo biloba in treating mild cognitive impairment and Alzheimer's dise...
**Si et al., 2022** | J Ethnopharmacol | Meta Analysis Si Xia, Yu Zhiying, ... Feng Yufei. Efficacy and safety of standardized Ginkgo biloba L. leaves extract as an adjuvant therapy for sudden sensorineural hearing loss: A systematic review and meta-...
**Mousavi et al., 2022** | Phytother Res | Meta Analysis Mousavi Seyedeh Neda, Hosseinikia Mahboobe, ... Saboori Somayeh. Beneficial effects of Ginkgo biloba leaf extract on inflammatory markers: A systematic review and meta-analysis of the clinical ...
**Liu et al., 2024** | J Ethnopharmacol | Systematic Review Liu Yaoyuan, Niu Puyu, ... Pang Wentai. Efficacy and safety of Ginkgo biloba extract in the treatment of unstable angina pectoris: A systematic review and network meta-analysis. J Ethnopharm...
**Kellermann et al., 2011** | Pharmacotherapy | Meta Analysis Kellermann Andrea J, Kloft Charlotte. Is there a risk of bleeding associated with standardized Ginkgo biloba extract therapy? A systematic review and meta-analysis. Pharmacotherapy. 2011-M...
**He et al., 2011** | Cochrane Database Syst Rev | Meta Analysis He Dian, Zhou Hongyu, ... Wu Bo. Pharmacologic treatment for memory disorder in multiple sclerosis. Cochrane Database Syst Rev. 2011-Oct-05(10):CD008876. doi:10.1002/14651858.CD008876.p...
**Whitton et al., 2015** | Cochrane Database Syst Rev | Meta Analysis Whitton Maxine E, Pinart Mariona, ... Ezzedine Khaled. Interventions for vitiligo. Cochrane Database Syst Rev. 2015-Feb-24;2015(2):CD003263. doi:10.1002/14651858.CD003263.pub5 BACK...
**Yuan et al., 2023** | Pharm Biol | Meta Analysis Yuan Chao, Zhang Huan, ... Zhang Kai. Efficacy and safety of Ginkgo biloba extract as an adjuvant in the treatment of Chinese patients with sudden hearing loss: a meta-analysis. Pharm Biol. 2023-Dec;...
**Lin et al., 2024** | Front Pharmacol | Systematic Review Lin Jingya, Sun Xiaojing, Yang Lingli. Effects and safety of Ginkgo biloba on depression: a systematic review and meta-analysis. Front Pharmacol. 2024;15:1364030. doi:10.3389/fphar.2024.13640...
**Wang et al., 2025** | J Ethnopharmacol | Meta Analysis Wang Liuding, Liang Xiao, ... Zhang Yunling. Ginkgo diterpene lactone meglumine for functional recovery in patients with acute ischemic stroke: A systematic review and meta-analysis. J Ethnopha...
**Rainer et al., 2013** | Wien Klin Wochenschr | Meta Analysis Rainer Michael, Mucke Hermann, Schlaefke Sandra. Ginkgo biloba extract EGb 761 in the treatment of dementia: a pharmacoeconomic analysis of the Austrian setting. Wien Klin Wochenschr. 201...
**Wang et al., 2015** | Zhong Nan Da Xue Xue Bao Yi Xue Ban | Meta Analysis Wang Lin, Zhang Tao, Bai Kezhen. [System evaluation on Ginkgo Biloba extract in the treatment of acute cerebral infarction]. Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2015-Oct;40(...
**Hyde et al., 2017** | J Psychopharmacol | Meta Analysis Hyde Anna J, May Brian H, ... Xue Charlie Changli. Herbal medicine for management of the behavioural and psychological symptoms of dementia (BPSD): A systematic review and meta-analysis. J Psy...
**Zhang et al., 2020** | Front Pharmacol | Systematic Review Zhang Tingting, Liu Nanyang, ... Li Hao. Different Doses of Pharmacological Treatments for Mild to Moderate Alzheimer's Disease: A Bayesian Network Meta-Analysis. Front Pharmacol. 2020;11:7...
**Chen et al., 2025** | Front Pharmacol | Systematic Review Chen Qiuhan, Wang He, ... Zhou Yabin. Efficacy and safety of different traditional Chinese medicine injections in the treatment of unstable angina pectoris: a systematic review and Bayesian ...
**Li et al., 2025** | BMJ Open | Systematic Review Li Peifan, Che Chenhao, ... Sun Shan. Pharmacotherapy options for the management of subjective tinnitus: a systematic review and network meta-analysis. BMJ Open. 2025-May-28;15(5):e096995. doi:10.113...
**Li et al., 2025** | Front Neurol | Systematic Review Li Wenting, Liu Xinyu, ... Liao Xiaoling. Network meta-analysis of the efficacy of pharmacological treatments for post-stroke cognitive impairment and vascular cognitive impairment. Front Neurol....
**Rejali et al., 2004** | Clin Otolaryngol Allied Sci | Meta Analysis Rejali D, Sivakumar A, Balaji N. Ginkgo biloba does not benefit patients with tinnitus: a randomized placebo-controlled double-blind trial and meta-analysis of randomized trials. C...
**Wu et al., 2007** | Stroke | Meta Analysis Wu Bo, Liu Ming, ... Fang Yuan. Meta-analysis of traditional Chinese patent medicine for ischemic stroke. Stroke. 2007-Jun;38(6):1973-9 BACKGROUND AND PURPOSE: A large number of traditional Chinese patent ...
Showing top 50 of 183 sources, sorted by quality score.
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Frequently Asked Questions
What is Ginkgo biloba and what is it used for?
Ginkgo biloba is a supplement studied for its potential effects on cognitive function, dementia, and various vascular conditions. While it is widely researched, the overall evidence for its effectiveness across different health issues remains inconsistent.
Does Ginkgo help with memory loss or dementia?
There is moderate evidence regarding Ginkgo's role in cognitive impairment and dementia, but large-scale reviews show mixed or inconclusive results. It is not currently proven to effectively prevent or treat these conditions.
Can Ginkgo help with tinnitus (ringing in the ears)?
There is weak evidence to support using Ginkgo for tinnitus. Systematic reviews indicate that there is currently insufficient evidence to claim it is an effective treatment for this condition.
Is Ginkgo effective for leg pain caused by poor circulation?
There is weak evidence regarding Ginkgo for intermittent claudication. Meta-analyses have found no significant benefit for using this supplement to treat this specific vascular condition.
Does Ginkgo show any benefits for acute ischemic stroke?
There is moderate evidence suggesting potential efficacy and safety for patients experiencing an acute ischemic stroke. However, more research is needed to confirm these findings.
Are there any dangerous drug interactions with Ginkgo?
Ginkgo can have moderate interactions with antiplatelet drugs and warfarin, which may increase your risk of bleeding. People taking these types of blood thinners should consult a doctor, as Ginkgo may enhance their effects.
What is the recommended dose of Ginkgo?
Current research summaries do not specify an effective or recommended dose for Ginkgo. You should consult a healthcare professional to determine an appropriate dosage for your needs.
Answers generated from research evidence. Not medical advice.