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Item #12
Heart
Association Recommends Fish Oil
All
omega-3 fatty acids offer protective benefits to the heart.
It
will also make the blood less likely to clot and cause a heart attack,
protecting against irregular heartbeats that cause sudden cardiac
death, and decreasing risk of cardiovascular disease (CVD).
Two
especially beneficial omega-3 fats -- eicosapentaenoic and
docosahexaenoic acids (EPA and DHA) -- are found in fish. A less
potent omega-3, alpha-linolenic acid, is found in plant sources such
as soybeans, canola, walnut and flaxseed.
The
American Heart Association’s (AHA) dietary guidelines have
recommended that adults eat at least two servings of fish per week.
However, in light of the recent Environmental Protection Agency and
Food and Drug Administration (FDA) warning about the presence of
contaminants in some species of fish, a report examined the benefits
and risks of consuming omega-3 fats from this source.
The
report stated that benefits and risks depend largely on a person’s
life stage. For example, children and pregnant and nursing women are
more susceptible to mercury from fish so it would be more important
for them to avoid eating fish than for middle-aged and older men, and
postmenopausal women, for whom the benefits of eating fish are thought
to outweigh the risks.
Additionally,
people with elevated triglycerides, an indicator for heart disease,
may benefit from taking 2 to 4 grams of EPA and DHA per day as a
supplement, according to the report. A 1 gram per day dose, which may
be more than can be received from diet alone, is currently recommended
for patients with existing CVD. The report noted, however, that high
intakes of EPA and DHA could cause excessive bleeding in some people.
Circulation
November 19, 2002;106(21):2747-57
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