Vegetables, not fruit, help fight memory problems in old age

Oct 23, 2006

Eating vegetables, not fruit, helps slow down the rate of cognitive change in older adults, according to a study published in the October 24, 2006, issue of Neurology, the scientific journal of the American Academy of Neurology.

In determining whether there was an association between vegetables, fruit and cognitive decline, researchers from Rush University Medical Center studied 3,718 residents in Chicago, Illinois, who were age 65 and older. Participants completed a food frequency questionnaire and received at least two cognitive tests over a six-year period.

"Compared to people who consumed less than one serving of vegetables a day, people who ate at least 2.8 servings of vegetables a day saw their rate of cognitive change slow by roughly 40 percent, said study author Martha Clare Morris, ScD, associate professor at Rush University Medical Center in Chicago, Illinois. "This decrease is equivalent to about 5 years of younger age."

Of the different types of vegetables consumed by participants, green leafy vegetables had the strongest association to slowing the rate of cognitive decline. The study also found the older the person, the greater the slowdown in the rate of cognitive decline if that person consumed more than two servings of vegetables a day. Surprisingly, the study found fruit consumption was not associated with cognitive change.

"This was unanticipated and raises several questions," said Morris. "It may be due to vegetables containing high amounts of vitamin E, which helps lowers the risk of cognitive decline. Vegetables, but not fruits, are also typically consumed with added fats such as salad dressings, and fats increase the absorption of vitamin E. Further study is required to understand why fruit is not associated with cognitive change."

Morris says the study's findings can be used to simplify public health messages by saying people should eat more or less of foods in a specific food group, not necessarily more or less of individual foods.

Source: Rush University Medical Center

Explore further: Physician/Pharmacist model can improve mean BP

add to favorites email to friend print save as pdf

Related Stories

Videogame power harnessed for positive goals

Mar 17, 2013

Even as videogames come under scrutiny for potential harmful impacts, researchers and developers are touting digital games for positive effects on health, learning and other social goals.

Recommended for you

Physician/Pharmacist model can improve mean BP

Mar 27, 2015

(HealthDay)—A physician/pharmacist collaborative model can improve mean blood pressure (BP), according to a study published online March 24 in Circulation: Cardiovascular Quality and Outcomes.

Innovative prototype presented for post-ICU patients

Mar 27, 2015

(HealthDay)—A collaborative care model, the Critical Care Recovery Center (CCRC), represents an innovative prototype aimed to improve the quality of life of intensive care unit (ICU) survivors, according ...

Clues to a city's health may be found in its sewage

Mar 27, 2015

Research from the University of Wisconsin-Milwaukee suggests that sampling a city's sewage can tell scientists a great deal about its residents – and may someday lead to improvements in public health.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.