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Omega-3 fatty acids are a form of polyunsaturated fat that the
body derives from food. Omega-3s (and omega-6s) are known as
essential fatty acids (EFAs) because they are important for good
health. The body cannot make these fatty acids on its own so
omega-3s must be obtained from food. These different types of acids
can be obtained in foods such as cold-water fish including tuna,
salmon, and mackerel. Other important omega 3 fatty acids are found
in dark green leafy vegetables, flaxseed oils, and certain
vegetable oils.
Omega-3 fatty acids have been found to be beneficial for the
heart. Positive effects include anti-inflammatory and anti-blood
clotting actions, lowering cholesterol and triglyceride levels, and
reducing blood pressure. These fatty acids may also reduce the
risks and symptoms for other disorders including diabetes, stroke,
rheumatoid arthritis, asthma, inflammatory bowel disease,
ulcerative colitis, some cancers, and mental decline.
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