Americans spend more than $250 million each year on the herbal supplement Ginkgo biloba with the hope it will improve their long-term cognitive function. The Ginkgo Evaluation of Memory (GEM) study, the largest-ever clinical trial has reported that those taking 120 mg of ginkgo extract twice daily did no better than a placebo in slowing down cognitive decline in older participants. These results come after following 3000+ people ranging in age from 72 to 96 years old over a period of 6 years.. These results are consistent with previous smaller studies.
PositiveTip: Save your money and spend it on comfortable walking shoes and a good, wholesome diet. Of course, you need to actually get out and walk and eat that good food to benefit!