News tagged with omega 3 fatty acids

Related topics: fatty acids

Eating fish, nuts may not help thinking skills after all

Contrary to earlier studies, new research suggests that omega-3 fatty acids may not benefit thinking skills. The study is published in the September 25, 2013, online issue of Neurology, the medical journal of the American Academ ...

Sep 25, 2013
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Could dietary tweaks ease type 1 diabetes?

(HealthDay)—Eating foods that contain certain nutrients may help people with newly diagnosed type 1 diabetes continue producing some insulin for as long as two years, a new study finds.

Aug 02, 2013
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Fish oil lowers stress response

(Medical Xpress)—Fish oil supplements may protect the heart in stressful situations, according to a recent research study.

Jun 11, 2013
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Omega-3 fatty acid

n−3 fatty acids (popularly referred to as ω−3 fatty acids or omega-3 fatty acids) are a family of unsaturated fatty acids that have in common a final carbon–carbon double bond in the n−3 position; that is, the third bond from the methyl end of the fatty acid.

Important nutritionally-essential n−3 fatty acids are: α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), all of which are polyunsaturated. The human body cannot synthesize n−3 fatty acids de novo, but it can form 20-carbon unsaturated n−3 fatty acids (like EPA) and 22-carbon unsaturated n−3 fatty acids (like DHA) from the eighteen-carbon n−3 fatty acid α-linolenic acid. These conversions occur competitively with n−6 fatty acids, which are essential closely related chemical analogues that are derived from linoleic acid. Both the n−3 α-linolenic acid and n−6 linoleic acid are essential nutrients which must be obtained from food. Synthesis of the longer n−3 fatty acids from linolenic acid within the body is competitively slowed by the n−6 analogues. Thus accumulation of long-chain n−3 fatty acids in tissues is more effective when they are obtained directly from food or when competing amounts of n−6 analogs do not greatly exceed the amounts of n−3.[citation needed]

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