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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
|Types of Fats in Food|
Omega-6 fatty acids are fatty acids where the term "omega-6" signifies that the first double bond in the carbon backbone of the fatty acid, occurs in the omega minus 6 position; that is, the sixth carbon from the end of the fatty acid. See essential fatty acids for more detail on the naming system.
The biological effects of the ω-6 fatty acids are largely mediated by their interactions with the ω-3 fatty acids, see Essential fatty acid interactions for detail.
Linoleic acid (18:2), the shortest chain omega-6 fatty acid is an essential fatty acid. Arachidonic acid (20:4) is a physiologically significant n-6 fatty acid and is the precursor for prostaglandins and other physiologically active molecules.
Some medical research has suggested that excessive levels of omega-6 acids, relative to Omega-3 fatty acids, may increase the probability of a number of diseases. Modern Western diets typically have ratios of omega-6 to omega-3 in excess of 10 to 1, some as high as 30 to 1. The optimal ratio is thought to be 4 to 1 or lower. 
Dietary sources of omega-6 fatty acids include:
Omega-6 and depressionEdit
List of omega-6 fatty acidsEdit
|Common name||Lipid name||Chemical name|
|Linoleic acid||18:2 (n-6)||9,12-octadecadienoic acid|
|Gamma-linolenic acid||18:3 (n-6)||6,9,12-octadecatrienoic acid|
|Eicosadienoic acid||20:2 (n-6)||11,14-eicosadienoic acid|
|Dihomo-gamma-linolenic acid||20:3 (n-6)||8,11,14-eicosatrienoic acid|
|Arachidonic acid||20:4 (n-6)||5,8,11,14-eicosatetraenoic acid|
|Docosadienoic acid||22:2 (n-6)||13,16-docosadienoic acid|
|Adrenic acid||22:4 (n-6)||7,10,13,16-docosatetraenoic acid|
|Docosapentaenoic acid||22:5 (n-6)||4,7,10,13,16-docosapentaenoic acid]]|
|Calendic acid||18:3 (n-6)||8E,10E,12Z-octadecatrienoic acid|
- The importance of the ratio of omega-6/omega-3 essential fatty acids.
-  Omega-6 fatty acids cause prostate tumor cell growth in culture
-  Omega-6 fatty acids linked to major depression
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