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We are going to do this one differently and lead with the safety information, because it matters more than the history.

Ginkgo biloba leaves

Read this before anything else

Ginkgo Biloba may increase bleeding risk. It can interact with anticoagulant and antiplatelet medication including warfarin, aspirin and clopidogrel. If you take any of these, speak to your doctor or pharmacist before using this or any ginkgo-containing product.

Stop around two weeks before planned surgery, including dental procedures, and tell your surgical team everything you take.

Seizure disorders. Ginkgo may be inadvisable for people with epilepsy or a history of seizures. Medical advice first.

This is not a reason to be alarmed — ginkgo is very widely used. It is a reason to have a five-minute conversation at a pharmacy counter before you start, particularly given that the people most drawn to memory supplements are also more likely to be taking anticoagulants.

What it is

Ginkgo biloba is the sole surviving species of an ancient order of trees, with a fossil record going back over 200 million years. Its distinctive fan-shaped leaves are the source of the extract used in supplements.

The compounds of interest are flavone glycosides and terpene lactones. Standardised extracts are usually characterised by their content of both.

What the research looks at

Ginkgo is among the most studied botanicals in the world, with a large literature covering circulation, cognitive function and age-related cognitive decline.

The honest position on that literature: results are genuinely mixed. Some trials have reported benefits on cognitive measures; several large, well-conducted trials have found no meaningful effect on preventing cognitive decline or dementia. Reviews frequently conclude the evidence is inconsistent.

We would rather set that out plainly than select the favourable studies. Ginkgo is a legitimate, widely used ingredient with a contested evidence base, and both halves of that sentence are true.

Other considerations

  • Reported side effects are usually mild — headache, digestive upset, dizziness.
  • Not recommended during pregnancy or breastfeeding.
  • Discuss with a doctor if you take diabetes medication, as effects on blood glucose have been raised.
  • Never consume raw or roasted ginkgo seeds, which are a different matter entirely from standardised leaf extract and can be toxic.

The honest summary

A well-known ingredient with genuine research, mixed results, and the most significant interaction profile in this formula. Worth a pharmacist conversation before starting — and that conversation is free.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. CogniFort Plus is a dietary supplement for healthy adults and is not a treatment for dementia, Alzheimer's disease or any other medical condition. Consult your healthcare professional before use, particularly if you take prescription medication, are pregnant or nursing, or have a medical condition. Individual results may vary.

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