One of the most popular herbal supplements, extracts of the ginkgo leaf are recommended for the treatment of a variety of conditions. In particular, they are thought to be of benefit for enhancing memory and cognition. The popularity of this product is demonstrated by the fact that annual sales of ginkgo exceed $1 billion worldwide, with more than $100 million of this spent in the United States alone.
Ginkgo has been widely available in the Western hemisphere for the past 40 years, first in Europe and then in the United States. The relatively recent interest in this leaf extract is notable because ginkgo, also known as maidenhair or kew, is one...
