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What Is cis-Eicosatetraenoic Acid (20:4 c)? What Foods Can I Find It In?

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3D-model of cis-Eicosatetraenoic acid (20:4 c) (src)

cis-Eicosatetraenoic acid, 20:4 c, is a straight-chain polyunsaturated cis fatty acid.

It is the cis-isomer of Eicosatetraenoic acid 20:4, and belongs to the family of eicosanoids.

cis-Isomer Of Eicosatetraenoic Acid

20:4 c is the cis-isomer of eicosatetraenoic acid 20:4.

It’s a polyunsaturated fatty acid. (source )

Isomers are compounds with identical chemical formulas but different structures.

The cis-isomer indicates that the functional groups are on the same side of the carbon chain.

While the trans-isomer indicates that functional groups are on opposing sides of the carbon chain. (source )

cis-Eicosatetraenoic Acid In Marine Lipids

cis-Eicosatetraenoic acid can be found in animal sources and can be found in marine lipids.

Polyunsaturated fatty acids that are contained in marine lipids appear to have a protective effect against coronary heart disease and thrombosis. (source )

Foods You Can Find cis-Eicosatetraenoic Acid (20:4 c) In

You find cis-Eicosatetraenoic Acid (20:4 c) mostly in poultry, pork, sausage and luncheon meat, dairy and egg, products.

Examples of food sources include

  • Ground Turkey
  • Cured Bacon
  • Chorizo
  • Italian Pork Sausage
  • Butter
  • Turkey Sausage
  • Broilers Or Fryers Drumstick

Foods That Contain cis-Eicosatetraenoic Acid In Our Nutrition Tool

You can access regularly updated top ranked lists of foods for over 200+ nutrients in our nutrition tool.

If you are interested in what foods contain the most of cis-Eicosatetraenoic acid we recommend you use our tool.

Here's our top ranked list of foods that contain cis-Eicosatetraenoic acid.

Sara Niemelä

co-founder Care Omnia, Head Content Creator


I’m a wife and a mother of three. I enjoy the outdoors, cooking, and spending time with my family.

Nutrition is my passion. I've spent thousands upon thousands of hours reading, analyzing, categorizing and comparing research studies.