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study from Williams College shows that taking ginkgo supplement for six weeks does not improve memory, learning or concentration for older healthy adults.

Several over-the-counter treatments are advertised to improve memory, attention, and related thought functions. Paul R. Solomon, Ph.D., of Williams College, in Massachussetts conducted a randomized, double-blind, placebo-controlled trial of the effects gingko on memory and recognition. Participants took 40 mg of gingko, 3 times a day for 6 weeks. Compared to placebo, ginkgo did not improve performance in 14 standard tests of learning, memory, attention, and concentration, or naming and verbal fluency, in the elderly adults. The ginkgo group also did not differ from the placebo group in self-reported memory function or rating by spouses, friends and relatives. In 1994, Congress passed a law that forbids the Food and Drug Administration from regulating foods. Ginko Biloba is sold as a food.

August 21, 2002 The Journal of the American Medical Association 2002; 288:835-840.

Checked 5/3/07

May 12th, 2013
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About the Author: Gabe Mirkin, MD

Sports medicine doctor, fitness guru and long-time radio host Gabe Mirkin, M.D., brings you news and tips for your healthful lifestyle. A practicing physician for more than 50 years and a radio talk show host for 25 years, Dr. Mirkin is a graduate of Harvard University and Baylor University College of Medicine. He is board-certified in four specialties: Sports Medicine, Allergy and Immunology, Pediatrics and Pediatric Immunology. The Dr. Mirkin Show, his call-in show on fitness and health, was syndicated in more than 120 cities. Read More
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