Facts and Food Sources of Docosatetraenoic acid


Docosatetraenoic acid entitles any straight chain 22:4 fatty acid. One isomer is of specific interest: all-cis-7,10,13,16-docosatetraenoic acid is an ω-6 fatty acid having common name adrenic acid. It is a naturally occurring polyunsaturated fatty acid which is formed through a 2-carbon chain elongation of Arachidonic acid. It is the most generous fatty acids in early human brain. This unsaturated fatty acid is metabolized by cells to biologically active products namely dihomo-epoxyeicosatrienoic acids, dihomoprostaglandins, and dihomo-EETs.


It is a member of class of compounds which is known as very long chain fatty acids. Very long chain fatty acids are fatty acids with aliphatic tail containing at least 22 carbon atoms. Practically it is insoluble in water and weakly acidic compound which is based on its pKa. This acid could be found in blood and also in human myelin tissue. It is located in cytoplasm within brain in membrane and in peroxisome. It could be found in extracellular space. In humans, Docosatetraenoic acid is associated in linoleic acid and alpha-linolenic acid metabolism.

Dietary Sources

Food name Weight (g) Docosatetraenoic acid (g)
Kielbasa 370 0.126
Turkey 863 0.112
Pork bacon 85 0.042
Swordfish 85 0.029
Pizza 155 0.015
Cream 120 0.012
Corn dogs 78 0.011
Queso fresco cheese 122 0.010
Double Cheeseburger 162 0.010
Plantains 118 0.009
Swiss cheese 132 0.009
Parmesan cheese 100 0.007
Hamburger 95 0.007
Egg 46 0.006
Mozzarella cheese 86 0.005
Oyster 85 0.004
Salami 9.8 0.004
Crab 135 0.004
Ricotta cheese 124 0.004
Sockeye salmon 85 0.003





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