A well-controlled, randomized study published in the Journal of the American Medical Association concludes that ginkgo biloba does not actually improve memory or brain function.
"This should be the end of the discussion on ginkgo biloba, but of course it won't be," says ACSH's Dr. Gilbert Ross. "Look at homeopathy. There hasn't been a single study that proves that it works or has any benefit to anyone, and yet billions are spent on it each year."