“One of the great things about nitrite is that it seems to head straight for the places that need more oxygen supplied by increased blood flow,” said Gary Miller, associate professor in Wake Forest University’s Department of Health and Exercise Science and one of the senior investigators on the project. “I think these results are consistent and encouraging – that good diet consisting of a lot of fruits and vegetables can contribute to overall good health.”
This study builds on previous research showing that a diet that includes beets and other nitrate-rich foods can lower blood pressure and improve exercise performance. But this is the first to look at how beets might affect the brain.
“There are areas in the brain that become poorly perfused as you age, and that’s believed to be associated with dementia and poor cognition,” said Daniel Kim-Shapiro, director of Wake Forest University’s Translational Science Center; Fostering Independence in Aging.
High concentrations of nitrates are found in beets, as well as in celery, cabbage and other leafy green vegetables like spinach and some lettuce.
The research findings are available online in Nitric Oxide: Biology and Chemistry, the peer-reviewed journal of the Nitric Oxide Society and will be available in print soon. The National Institutes of Health contributed funding for this research.
The Center for Translational Science; Fostering Independence in Aging focuses on the promotion and maintenance of functional health as people age. Center researchers study how diet and exercise can change cognitive and physical function. The center’s team involves medical staff, behavioral scientists and other scientists who develop research-based interventions to help both physical and cognitive health in aging populations.