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HEALTH
BENEFITS
Blueberry
Health Benefits Receive Big Praise
in Science Studies and Media
Natural
Blues are the Right Color to Bring out Your Best
Want
to retain your memory? Try a blueberry. Lower your risk
factors for some cancers? Make blueberries part of your
diet. How about a great natural source of antioxidants
for optimum health? That's right, true blues.
The
long list of health benefits associated with blueberries
is becoming as well known among the general public as
it has been for many years in the health and research
communities and with professional growers. From Newsweek
to the Wall Street Journal and beyond, it's almost
impossible now not to hear something good, make
that great, about blueberries.
“When
it comes to brain protection, there's nothing quite like
blueberries, according to Tufts neuroscientist James Joseph,”
as recounted in Newsweek (6/17/02). "'call
the blueberry the brain berry,– says Joseph, who
attributes the effects to its antioxidant and anti-inflammatory
compounds.” In the Wall Street Journal (4/29/03),
a recent article on reversing memory loss noted “blueberries
. . . had the strongest impact” in a study showing
aging rodents behaved more like their younger counterparts
when fed several different fruits.
In
fact, blueberries are a standout fruit in the 5 A Day
The Color Way™ for Better Health Program, the
nation's largest public-private nutrition education initiative.
With the goal of increasing fruit and vegetable consumption
to 5 A Day for 75 percent of Americans by 2010, the program
recommends that consumers should Eat Your Colors. Of course
that means blueberries as one of the top fruits and vegetables
in the Blue/Purple category. According to the program,
blues and purples lower the risk of some cancers and promote
urinary tract health, memory function, and healthy aging
with their varying amounts of health-promoting phytochemicals
such as anthocyanins and phenolics, currently being studied
for their antioxidant and anti-aging benefits.
For
easy reference, the list from many sources of reported
blueberry benefits includes:
- improved
vision
- clearing
arteries
- more
antioxidants for disease protection
- strengthening
blood vessels
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- enhanced
memory
- stopping
urinary tract infections
- reversing
age-related physical and mental declines
- promoting
weight control.
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“We
now know that blueberries are one of the best sources
of antioxidants, substances that can slow the aging process
and reduce cell damage that can lead to cancer,”
according to the American Institute for Cancer Research.
Antioxidant
refers to the negative oxidation properties or compounds
found in blueberries. Certain natural fruits and vegetables
supply the body with chemicals which react against particularly
harmful oxidants associated with elements (“free
radicals”) which can damage a wide variety of functions
and internal processes, including genetic DNA in reproductive
cells and receptor sites in the brain.
Now
many international studies are confirming and discovering
the benefits associated with blueberries. “There
are a lot of research avenues to follow that may explain
the blueberry's ability to reduce stroke-induced damage,”
said Professor Marva Sweeney-Nixon, a researcher at the
University of Prince Edward Island in Canada. And a recent
Japanese study concluded blueberry extract is beneficial
for the prevention of weak eyesight and the best way to
relieve tired eyes for people on the go with no time to
rest.
Of
course, many blueberry health benefits have been known
and recognized for years. For just 40 calories in a ½-cup
serving, blueberries offer a great lineup of nutrients
like potassium and iron, as well as being a an excellent
source of Vitamin C. And let's not forget that blueberries
also provide dietary fiber, two grams in each ½-cup
serving which about equals the amount of fiber in a slice
of whole wheat bread.
Health
Magazine has recently listed blueberries as the top
source of antioxidant activity in a Guide to 50 Super
Foods. The magazine added, “Blueberries are a particularly
rich source of antioxidants called anthocyanins (also
contained in apples, grapes, blackberries, radishes, and
red cabbage). Several studies suggest anthocyanins discourage
blood clots from forming, warding off heart attacks. They
also appear to improve night vision and to slow macular
degeneration by strengthening tiny blood vessels in the
back of the eye.”
Another
big backer of blueberries includes Prevention Magazine.
“Recent studies even suggest that blueberries may
actually reverse the decline in memory that can occur
with aging,” noted the nationwide publication. “Here's
the scoop: among all the popular fresh fruits and vegetables,
blueberries are number one in total antioxidant power.
Besides antioxidants, blueberries contain condensed tannins
that help prevent urinary tract infections.”
In
the Journal of Neuroscience, a 1999 study had equally
positive results. “The exciting finding from this
study is the potential reversal of some age-related impairments
in both memory and motor coordination, especially with
blueberry supplements,” said Molly Wagster –
a health scientist administrator at the National Institute
on Aging, which helped fund the study – in a statement
reported by MSNBC.com.
And
just in case the term comes up in polite conversation,
nutriceutical is the newest word being tossed about among
those in the know in health circles concerning the benefits
attributed to blueberries. A combination of NUTRItion
and pharmaCEUTICAL, NUTRICEUTICAL describes the
naturally based way – as opposed to artificially
from a laboratory environment – to preserve good
health.
“In
general, blueberries are one of the richest sources of
antioxidant phytonutrients of the fresh fruits and vegetables
we have studied,” concluded Dr. Ronald Prior in
a noted 1998 research study (Journal of Agricultural
and Food Chemistry, vol. 46, no. 7) conducted at Tufts
University. Because of the good news to date, researchers
will go on to study the health benefits of blueberries
long into the future since there is much left to know
and confirm. “In the meantime,” admitted Dr.
Prior, “I'm eating blueberries every day.”
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