Ginkgo

Introduction

What is ginkgo?

Ginkgo or Ginkgo biloba is one of the world’s oldest living tree species. Ginkgo has been used for many years for a variety of medicinal purposes.

What is ginkgo extract?

Ginkgo extract is made from the leaves of the Ginkgo biloba tree. The leaves contain a complex mixture of components. The exact formulation of ginkgo extract in products available to consumers in the U.S. can vary from manufacturer to manufacturer.

Why do some people take ginkgo extract?

In the U.S., ginkgo extract is readily available to consumers as an herbal supplement. People take it for a wide variety of health reasons, mostly to improve brain function and memory. However, clinical trials designed to assess the efficacy of ginkgo extract have not produced consistent evidence of benefit. Ginkgo extract is typically taken orally. It is found in capsules, tablets, or teas, but may also be available in liquid extracts.

Is ginkgo extract regulated?

Ginkgo is marketed in the U.S. as a dietary supplement and regulated by the U.S. Food and Drug Administration (FDA). In general, the FDA regulations for dietary supplements are different from regulations for prescription or over-the-counter drugs. Federal law does not require dietary supplements to go through the same standards of premarket testing for safety or efficacy as drugs intended to treat, cure, prevent, diagnose, or mitigate disease.

Should I stop or start taking ginkgo extract?

Consumers should be aware that studies have not consistently demonstrated that ginkgo improves brain function. The new NTP findings showing that both rats and mice develop cancer after long-term use should also be taken into consideration. Additionally, ginkgo has been shown to interact with other drugs, which can increase or decrease their effects. It is always important to give your health care provider a full picture of what you do to manage your health, including taking dietary supplements. This will help ensure coordinated and safe care.