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The
Balancing Act of Omega Fatty Acids |
by:
Greg
Post |
Generally
it can be said that most of us do not get
a good balance of essential fatty acids
in our diet. Perhaps this does not sound
like late breaking news. However most of
what we consider news does not directly
impact our lives. An earthquake half way
around the world will make the headlines.
But in reality most of us are insulated
from its effects. Essential fatty acids
on the other hand will never make a reporter’s
career. However, many of us are affected
by these little buggers more than we may
suspect.
Essential fatty acids (EFAs) are called
essential because we need them to survive
and our bodies cannot manufacture them.
Deficiency and imbalance of EFAs are blamed
for an impressive list of chronic health
conditions. But, unlike the distant earthquake,
EFA deficiency is unlikely to make the headlines.
Two very notable essential fatty acids that
are worth our attention are omega-3 and
omega-6. They get their names because of
the placement of the first of multiple double
carbon bonds in the molecule. Though the
chemistry is important it is not the focus
of this essay. What is important to us now
is the potential health impact of these
two fats. Let’s take a closer look at each
of these essential fatty acids separately
and then consider their relation to each
other.
Omega-6
In reverse order we will consider omega-6
first. Perhaps we do not hear as much about
omega-6 as we do its counterpart. But consider
this impressive resume. Omega-6 has been
useful in the treatment of anorexia nervosa,
ADHD, osteoporosis, diabetes, eye disease,
certain skin conditions, allergies, rheumatoid
arthritis, tuberculosis and even cancer.
Not bad for an unsung hero. Go over that
list again. These are all serious conditions
that have been tied to omega-6 deficiencies.
So why do we hear so little about this little
gem? Perhaps it is because health issues
only become exciting once there is an obvious
problem. Then we usually look for a pill
to take. But if this is a reason for our
ignorance it is not the biggest reason.
The plain truth is most of us are getting
plenty of omega-6 in our diets. In fact
most of us get way too much. Over ten times
too much. That’s a switch isn’t it? Too
much of a good thing. The reason we get
so much of it is because many of the foods
we buy are processed with some type of linoleic
acid which is a popular form of omega-6.
In addition many oils we use are high in
omega-6 such as sunflower, safflower, soybean,
corn and cottonseed oils.
So what’s the rub? Why worry about too much
omega-6? Our bodies have the ability to
convert linoleic acid into longer chain
fatty acids which lead to the production
of eicosanoids. Eicosanoids depending, on
their source, can have positive and negative
influences on our bodies. They can slow
intravascular clotting which helps to prevent
heart attacks and strokes. They suppress
inflammation preventing us from overreacting
to allergens. They dilate blood vessels
reducing hypertension and increasing good
blood delivery. They can also control cell
growth slowing the rapid growth of cancer
cells.
On the other hand they might increase blood
clotting which leads to heart attack and
stroke. They suppress the immune system
leaving us more open to infection. They
increase cellular growth thereby promoting
the growth of cancer cells. And they create
new blood vessels which can feed cancer
cells. Unfortunately eicosanoids produced
by an overabundance of omega-6 in the system
cause many of the negative factors mentioned
above.
Omega-3
Omega-3 has the opposite story. Like omega-6
it is essential to proper health and is
useful in the treatment of many chronic
diseases. Among these conditions are heart
attacks, cancer, lupus, schizophrenia, accelerated
aging, stroke, insulin resistance, asthma,
postpartum depression, obesity, diabetes,
arthritis, ADHD, and Alzheimer's disease.
But unlike omega-6 most diets are deplorably
deficient in omega-3. Most of us get only
a small amount of what we need for optimal
health. Though it can manifest itself in
many ways this deficiency may be most noticeable
in chronic heart disease. Entire cultures
are known to have very low incidence of
heart disease because of diets high in omega-3
rich foods. Most notorious among these are
Eskimos. Danish researchers first learned
this secret from the Eskimos. Of course
the Eskimos did not realize they had a secret.
They were just eating large amounts of the
fatty foods that were available to them.
That’s right, fatty foods. Foods like salmon
which are high in omega-3.
Once the secret was out researchers rolled
up their sleeves and produced a flurry of
studies and trials to test the hypothesis
that omega-3 reduces heart disease. The
studies continue to go on. But the overwhelming
conclusion is consistent with the original
observations. That is: omega-3 reduces incidence
of heart disease. In fact the conclusions
are so certain the even the American Heart
Association now recommends fish oil supplements
for any one with documented coronary heart
disease or high triglycerides. That was
no small concession for the AMA.
Balance
Of course we all understand that the key
to everything is balance. Perhaps this familiar
sentiment is nowhere more important than
it is to the topic at hand. Both omega-6
and omega-3 are essential to health. But
the ratio at which we ingest these fatty
acids is key. Scientists differ on the optimal
ratio. One recommended ratio is 5 parts
omega-6 compared to 1 part omega-3. Some
would stretch that to a 10:1 ratio. The
more conservative estimates place the optimal
ratio somewhere between 1:1 and 4:1. Unfortunately
the average American diet includes an omega-6/omega-3
ratio between 14:1 and 20:1. This imbalance
contributes to many of the chronic health
problems mentioned above.
So what do we do? Assuming you are a reader
who takes this seriously there are some
steps you can take to assure better health
for you and your family. You can begin by
avoiding foods prepared with linoleic acid
and some of the linoleic acid rich oils
mentioned above. Buy less prepared foods
and do more home cooking. Then make every
effort to increase omega-3 consumption.
Cold water fish like salmon and tuna (not
the canned varieties) are very high in omega-3.
But you need to eat these fish more than
once per week. I have met people who eat
salmon every day for breakfast. If you are
not a fish lover or are concerned with marine
pollutants try fish oil supplements. The
good ones are completely free from contaminants.
Our diets have contributed to the increase
of chronic conditions like heart disease.
Our diets can go a long way toward resolving
the problems.
About the author:
Greg has degrees in science, divinity and
philosophy and is currently an I.T. developer.
Omega-6 and omega-3: http://www.optimal-heart-health.com/omega_3.html
Omega-3 and Triglycerides: http://www.optimal-heart-health.com/omega-3.html
Triglycerides: http://www.optimal-heart-health.com/triglycerides.html
Circulated by Bandoni
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