What is the recommended ginkgo biloba dosage

Ginkgo is not always ginkgo

What is ginkgo?

Ginkgo (Ginkgo biloba) is a tree species that originated in China and is now planted around the world. In East Asia, the tree is cultivated for its edible seed and as a temple tree. Ginkgo biloba is one of the most intensively studied medicinal plants. For about 50 years there have been drugs that are used against dementia, dizziness, memory disorders and noises in the ears (tinnitus).

What ingredients does ginkgo contain?

The most important active ingredients in the leaf extracts are secondary plant substances such as flavonoids (for example quercetin), terpenoids, sitosterols and anthocyanins.

For the production of a medicinal extract from gingko leaves there are precise regulations in the European Pharmacopoeia. The percentage of the active ingredients, e.g. flavone glycosides, is specified. There is an upper limit for the undesirable ginkgol acid. For foods and dietary supplements containing ginkgo, on the other hand, there is no standardized composition. The individual products are therefore not comparable with one another.

Investigations by the Central Laboratory of German Pharmacists (ZL) also show that the majority of the food supplements examined contain ginkgo extracts for which there is a justified suspicion of the addition of secondary plant substances from other plant sources, e.g. quercetin and rutin from buckwheat or extracts of the Japanese pagoda tree.



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