Consuming just a daily serving of spinach -- or any type of leafy green, for that matter -- may help slow the process of age-associated cognitive decline, according to a new study. The reason? Vitamin K.
A
group of researchers at Rush University in Chicago who analyzed the
diets and mental functions of 954 elderly people over a five year period
found that those who incorporated more green in their diets were more likely to be mentally sharp.
The
researchers tracked the diets of participants, whose age averaged 81,
for an average of five years. They found that people who ate one or two
daily portions of green leafy vegetables had the same cognitive
abilities as someone 11 years younger who never consumed leafy greens.
Beyond spinach,
vegetables like kale, collards and mustard greens could also be
effective in slowing down the brain's aging process. Previous studies
have found that both folate and beta-carotene are brain boosters, but
this study is the first to evaluate the benefits vitamin K has on the
brain.
“No other studies have looked at vitamin K in relation to
change in cognitive abilities over time, and only a limited number of
studies have found some association with lutein," said Martha Clare
Morris, Sc.D., assistant provost for community research at Rush
University Medical Center and the leader of the study's research team.
The team believes that other foods
high in these nutrients, like asparagus, brussels sprouts and carrots
could provide the same benefits as the darker greens, and they intend to
expand their research to explore this possibility.
The research
holds promise for a brain booster that is accessible and affordable.
"Since declining cognitive ability is central to Alzheimer’s disease and
dementias, increasing consumption of green leafy vegetables could offer
a very simple, affordable and non-invasive way of potentially
protecting your brain from Alzheimer’s disease and dementia,” Morris
said.
The study was presented at the Experimental Biology meeting on March 30.
Source:
The Huffington Post
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By
Kate Bratskeir
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