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Are you avoiding
fat in your diet? Then you may be robbing
your body of important nutrients called essential
fatty acids, which -- though they are fat
-- are necessary for your health.
By John Casey WebMD Feature
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Despite the many public outcries that the American
diet is too full of fat, it turns out that 90% of
us don't get enough of the fats that are good for
us. Dietitians and nutritionists call these "essential
fatty acids," or EFAs, and these fats are exactly
that: essential to good health.
"A balance of omega-3 and omega-6
fatty acids are vital to cardiac function, joint
health, insulin balance, mood stability, skin
health, and even gene expression, but our consumption
of omega-3 is down 80%, while our consumption
of omega-6 has increased several hundred percent,"
says Artemis Simopoulos, MD, editor in chief of
World Review of Nutrition and Dietetics and author
of The Omega Diet.
Too much omega-6 can worsen inflammatory
diseases and degenerative diseases. In people
with arthritis, for example, Simopoulos says a
diet heavy in omega-6 rich corn oil can worsen
the person's symptoms. Give that same person a
diet rich in fish oils, and their symptoms will
improve.
The point here, she says, is that
our bodies need both omega-3 and omega-6, but
you need them in a balance. The ideal ration of
the oils is still being investigated, but the
vast majority of Americans need lots more omega-3,
and much less omega-6.
"Through human history, people
hunted and ate fish and ate greens," she
says. "Up until 150 years ago, most people
had diets that were very balanced in essential
fatty acids. That's important because these fats
work in opposition to each other. Too much of
one or the other can cause a variety of problems
in the body. Modern diets are really poor in omega-3."
Get the Good Fat
Since our bodies do not make EFAs,
we can only get them in food. Omega-6 is found
in corn and some other vegetable oils, such as
safflower oil, says Simopoulos. Since modern diets
are full of corn oil, we get too much omega-6.
Omega-3, on the other hand, is found in fish and
fish oil, all green leafy vegetables, flax seed,
hemp, and walnuts, and as we don't eat as much
of these as we should, we are mostly low in this
fat.
"You have to start with the
idea that all fats are calorie-dense foods that
need to be consumed in moderation," says
Elaine Feldman, MD, professor emeritus of medicine
at the Medical College of Georgia in Augusta,
who has done extensive research on EFAs. "So
it's important to consume healthy fats when you
are eating fats. Choose fish at least twice a
week, eat leafy vegetables, and cut out as much
animal fat and hydrogenated vegetable oil as possible."
Simopoulos says there are three
things we should do to get more omega-3 in our
diets:
Avoid corn, safflower, soy and sunflower
oils. Add flax and hemp seed and walnuts in recipes
whenever possible. These can be sprinkled on salads
and cereals or added to just about any other foods.
Eat more fish, especially salmon and other deep-water
varieties.
Dump the Trans Fat
"Just as important as getting
more good fat in your diet is getting rid of trans
fatty acids, which appear on ingredient labels
as hydrogenated or partially-hydrogenated vegetable
oils," says Feldman.
Trans fatty acids are used in the
prepared food industry to prolong the shelf life
of baked goods like cookies, crackers, and most
supermarket peanut butter, to name just a few.
The FDA is in the process of considering adding
trans fatty acid information to labels on foods
so consumers will be more aware that they are
eating this fat.
"Trans fats should just be
banned by the FDA as soon as possible," says
Simopoulos. "These fats are just plain dangerous
to good health, and we eat them in just about
anything baked or fried item that comes in a package.
In Holland, use of these fats has been banned."
One of the worst aspects of trans
fatty acids, says Simopoulos, is that the body
will take them up more readily than good fat.
"Trans fats interferes with
the normal metabolism of EFAs," she says.
"So not only do we not get enough of the
fats we need, but these unhealthy fats force our
body to take up less of what little good fats
we do get."
"Mere labeling is insufficient,"
she says. "In my opinion it's outrageous
that we allow these products to be used at all."
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Nanci
S. Guest is a certified personal trainer
& nutritionist, and is completing
her Master of Science degree in nutrition
this June. She owns "Power Play:
Nutrition, Fitness, Performance"
in Vancouver, BC, and for the past
8 years she has been providing individuals,
sports teams & the community with
nutritional consulting & personal
training services, as well as research
services, seminars and article writing
for local & national publications.
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Her specialization is sports nutrition,
catering to a variety of athletes
of all levels. Some of her elite athletic
clientele include members of the Vancouver
Canucks, the Vancouver Giants &
the BC Lions, the Canadian National
Freestyle Ski Team, Iron Man participants,
athletic teams from BC high schools
and universities, and a variety of
other provincial and national team
members.
Nanci can be reached at:
www.powerplayweb.com
and
by email at nanci@powerplayweb.com.
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