Gingko biloba does not prevent Alzheimer’s disease

The AP reports, “Taking the popular dietary supplement ginkgo biloba didn’t prevent Alzheimer’s disease in older adults,” according to a study published in the journal Lancet Neurology.

“Research in animals had suggested that the plant extract might ward off the most common form of dementia, but previous studies in humans – including a large US study published in 2008 – haven’t found any evidence that it does.”

HealthDay reports, “In the French study, Dr. Bruno Vellas from the Hopital Casselardit in Toulouse and colleagues enrolled more than 2,800 people aged 70 and older who reported having memory problems. These patients were randomly assigned to take ginkgo biloba extract or an inactive placebo.”

WebMD reports, “Over five years of follow-up, about the same number of people in the two groups got Alzheimer’s disease.”

MedPage Today reports, “In an accompanying editorial, Lon Schneider, MD, of the University of Southern California in Los Angeles, wrote that more than 10,000 patients have now been involved in clinical trials of ginkgo biloba with no reported benefits.”

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