Omega-3 and
omega-6 fatty acids have been shown to prevent many common health ailments
and work as effective tools in fighting heart disease, depression and
even cancer.
What are
omega fatty acids?
Omega-3 fatty
acids are a form of polyunsaturated fats, one of four basic types of fat
that animals and humans derive from food. (Cholesterol, saturated fat,
and monounsaturated fat are the others.) All polyunsaturated fats, including
the omega-3s, are increasingly recognized as important to good health.
Eating too
many foods rich in saturated fats has been associated with the development
of degenerative diseases, including heart disease and even cancer. Polyunsaturated
fatty acids, however, are healthy for animals and humans. Omega-3s, which
are found primarily in cold-water fish, fall into this category, along
with omega-6s, which are found in grains, most plant-based oils, poultry
and eggs.
Why are omega-3
fatty acids important?
Omega-3s
(and one omega-6) are considered important fatty acids because they are
critical for good health. They are essential building blocks your body
needs for a healthy heart and strong immune system. Copper River salmon
supplies numerous omega-3 fatty acids, including DHA and EPA, making it
the best source of these nutrients.
There are
different types of omega-3 fatty acids
Key omega-3
fatty acids include eicosapentaenoic acid (EPA) and docosahexanoic acid
(DHA), both found primarily in oily cold-water fish such as salmon, tuna
and mackerel. Aside from fresh seaweed, plant foods rarely contain EPA
or DHA.
Medical research
shows omega fatty acids have health benefits
Scientists
made one of the first associations between omega-3s and good health while
studying the Inuit (Eskimo) people of Greenland in the 1970s. As a group,
the Inuit suffered far less from certain diseases (coronary heart disease,
rheumatoid arthritis, diabetes mellitus, psoriasis) than their European
counterparts. Yet their diet is very high in fat from eating whale, seal,
salmon and other fish.
Eventually
researchers realized that these foods were all rich in omega-3 fatty acids,
which provided real disease-countering benefits.
Prevent heart
disease with omega-3 fatty acids
Omega-3 fatty
acids have been shown to improve heart health. They play a part in keeping
cholesterol levels low, stabilizing irregular heart beat (arrhythmia)
and reducing blood pressure.
Omega-3 fatty
acids are also natural blood thinners, reducing the "stickiness" of blood
cells (called platelet aggregation), which can lead to such complications
as blood clots and stroke.
Specifically,
two papers reported by the Centers for Disease Control and Prevention,
in collaboration with investigators from the University of California,
San Francisco, have shown levels of omega-3 fatty acids to be inversely
correlated with the risk for coronary artery disease (CAD) and stroke.
Copper River
salmon is naturally balanced to deliver the right amounts of omega-3 fatty
acids.
Protect against
cancer with Omega-3s
Preliminary
research from the University of California, Los Angeles, suggests that
omega-3 fatty acids may help maintain breast tissue and prevent breast
cancer. Also, in a recent study, participants who supplemented their diet
with fish oils produced fewer quantities of a carcinogen associated with
colon cancer than did a placebo group.
Additionally,
a recent university study from Frankfurt, Germany indicates omega-3 fatty
acids may offer protection from colon cancer, said researcher Angela Jordan.
The super
nutrient has also shown positive effects against prostate, breast and
pancreas cancer cell lines, Jordan said. During the colon cell trials,
omega-3 was found to stop all malignant growth in 72 hours and included
some malignant cell death in a highly aggressive cell line.
The omega-3
results were announced recently at the Digestive Disease Week Conference
held in Orlando, Florida.
Omega 3s
help prevent discomforts related to inflammation
Rheumatoid
arthritis, lupus, Raynaud's disease and other autoimmune diseases greatly
decrease quality of life. Diets high in omega-3 fatty acids (such as fish
oils) have been shown to increase survival in people with autoimmune diseases.
This is probably because the omega-3s help the arteries as well
as many other parts of the body stay inflammation free. EPA and
DHA are successful at this because they can be converted into natural
anti-inflammatory substances called prostaglandins and leukotrienes, compounds
that help decrease inflammation and pain.
In 1998,
an exciting review of well-designed, randomized clinical trials reported
that omega-3 fatty acids were more successful than a placebo ("dummy drug")
in improving the condition of people with rheumatoid arthritis. The research
also showed that getting more omega-3 fatty acids enabled some participants
to reduce their use of nonsteroidal anti-inflammatory drugs (NSAIDs).
Stay happy
with omega-3 fatty acids
"Fatty
acids contained in fish such as salmon may prove to function as natures
own anti-depressants," says a study of 30 patients conducted by a
research team headed by Andrew Stoll, M.D., director of the pharmacology
research laboratory at Harvard University.
The university's
McLean Hospital found that some of the patients' symptoms of manic depression
responded favorably to treatment with fish oil supplements.
Toyama Medical
and Pharmaceutical University in Toyama, Japan, showed one omega-3 acid,
DHA, to prevent an increase in extra aggression during periods of stress.
Omega-3 fatty
acids, both DHA and EPA, are found in fatty fish, including salmon and
cod. They may work by increasing serotonin levels, thus boosting neurotransmitter
activity, as do anti-depressants such as Prozac. They may also help by
restocking the outer brain cells, which receive chemical signals.
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