Are Ginkgo biloba supplements effective for improving memory or preventing dementia?

Ginkgo biloba supplements are among the most popular herbal supplements promoted for their ability to enhance cognitive performance, improve memory, and prevent age-related mental decline. However, reliable scientific studies indicate that there is no conclusive evidence to support these claims [2].

What does research say about Ginkgo biloba?

Despite its long history of use in traditional medicine, recent research has not proven the effectiveness of Ginkgo biloba in any of the health conditions studied. In large-scale studies involving older adults, including the long-running Ginkgo Evaluation of Memory (GEM) study, there was no significant difference between individuals who took Ginkgo biloba supplements and those who took a placebo regarding the rates of dementia or Alzheimer's disease [2].

Furthermore, it is unclear whether these supplements positively affect cognitive performance in healthy individuals. Most available research on this subject is of low quality, and there is no definitive evidence that taking Ginkgo prevents or slows the progression of dementia or mild cognitive impairment [2].

Potential risks and side effects

Caution should be exercised when considering the use of Ginkgo biloba supplements, as they are not risk-free. Ginkgo leaf extracts are generally considered safe for most adults when taken in moderate doses, but some common side effects may occur, such as dizziness, digestive disturbances, and headaches [2].

More importantly, there are potential drug interactions; Ginkgo biloba may increase the risk of bleeding, especially in people taking blood-thinning medications such as warfarin. It may also interact harmfully with other medications, so it is strictly necessary to consult a doctor before adding any herbal supplement to your daily routine [2]. Remember also that fresh or unprocessed Ginkgo seeds may be toxic and should be completely avoided.

Scientifically supported alternatives and strategies

Instead of relying on supplements that have not proven to be medically effective, it is better to focus on strategies that have been proven to promote brain health in general. If you are concerned about memory decline, it is essential to undergo a comprehensive medical evaluation, as memory impairment may be caused by treatable conditions such as vitamin B12 deficiency, thyroid disorders, or even side effects of medications you are taking [1].

Doctors can perform cognitive assessments such as the MoCA or MMSE tests to accurately determine brain health status [1]. For more information on practical ways to keep your mind sharp, you can read our article on Improving Memory in Old Age: Practical Strategies for Maintaining Cognitive Health (Arabic).

It is always recommended to discuss any complementary treatment approach with your healthcare provider; informed health decisions based on accurate diagnosis are the best way to ensure your safety and maintain your long-term cognitive health [2]. Do not ignore warning signs such as memory loss that interferes with your ability to perform daily activities, as early diagnosis opens the door to more effective medical management options [1].

Medical references

• Cognitive Testing
• Ginkgo