A large study has shown the dietary supplement ginkgo didn't help prevent dementia and Alzheimer's disease.
Extracts from ginkgo tree leaves have antioxidant and anti-inflammatory effects, but earlier research on ginkgo and memory showed mixed results. Proponents claim gingko protects the brain by preventing the buildup of an Alzheimer's-related protein or by preventing cell-damaging oxidative stress.
To test the theories, researchers recruited more than 3,000 people, ages 75 and older. Half were randomly assigned to take 120 milligrams of ginkgo biloba twice a day. The others took identical dummy pills.
After six years, dementia had been diagnosed at a similar rate in both groups. Researchers noted a similar rate of Alzheimer's disease. The leader of the federally funded study said he doesn't think ginkgo "has a future as a powerful anti-dementia drug."
The study appears in tomorrow's Journal of the American Medical Association
U.S. Health and Human Services Secretary Kathleen Sebelius reiterated Tuesday that she won’t intervene in the “incredibly agonizing” case involving a 10-year-old Pennsylvania girl who is waiting for a lung transplant, telling members of Congress that medical experts should make those decisions.
One of the first provisions of the 2010 health reform law has had its intended effect: shifting costs from hospitals, taxpayers and families to health insurance companies, researchers reported on Thursday. It’s one of the most popular aspects of the law.
People may realize that fast food isn’t health food, but they don’t realize just how fattening it really is, researchers report. They surveyed people eating at 10 burger, chicken, sandwich and doughnut chains and found they greatly underestimated just how much they were chowing down.
A new line of caffeinated chewing gum is causing jitters among health advocates and prompting federal officials to take a new look at the proliferation of jolt-infused foods, including those marketed to children and teens.