No measurable effect from ginkgo is seen on cognition, Schneider said. "Regardless of whether people say 'I take it and I feel better,' you just don't see an effect," he said.
Still, Schneider won't object if someone wants to try it. "It is not in my position to deflate hope," he said. "If someone really feels they need to take this and they need to try it, well go ahead and do it. But their expectations should be realistic, and if they don't experience anything, then they probably should stop."
For more information on ginkgo biloba, go to the U.S. National Center for Complementary and Alternative Medicine.
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