From the Research
The maximum recommended dosage of Ginkgo biloba is typically 120-240 mg per day, divided into two or three doses. For general cognitive support, 120 mg daily is often sufficient, while doses up to 240 mg may be used for specific conditions like cognitive impairment or circulatory issues, as shown in a study published in 1999 1. It's best to start with a lower dose (around 40-60 mg) and gradually increase to assess tolerance. Ginkgo supplements should contain standardized extract with 24% flavone glycosides and 6% terpene lactones for optimal effectiveness, as described in a study from 2008 2. Take with food to minimize potential stomach upset. Ginkgo works by improving blood flow to the brain and acting as an antioxidant, but effects may take 4-6 weeks to become noticeable. People on blood thinners, pregnant women, and those scheduled for surgery should avoid ginkgo due to its blood-thinning properties. If side effects like headache, digestive issues, or dizziness occur, reduce the dosage or discontinue use and consult a healthcare provider.
Some key points to consider when taking Ginkgo biloba include:
- Starting with a low dose and gradually increasing as needed and under medical supervision
- Monitoring for potential interactions with other medications, such as blood thinners
- Being aware of the potential for side effects, such as headache or digestive issues
- Choosing a high-quality supplement that contains standardized extract with 24% flavone glycosides and 6% terpene lactones
It's also important to note that the efficacy and safety of Ginkgo biloba have been supported by numerous studies, including a review published in 2002 by the Cochrane Collaboration, which concluded that the published literature strongly supports the safety and potential benefits of ginkgo in treating memory loss and cognitive disorders associated with age-related dementia, as mentioned in a study from 2003 3. Additionally, a study from 2014 4 found that flavonoid glycosides and terpene trilactones in Ginkgo biloba extract may have inhibitory activity towards fibril formation of β-amyloid peptide, which is associated with Alzheimer's disease. However, more research is needed to fully understand the effects of Ginkgo biloba on human health.