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

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

Cis-Eicosatetraenoic acid, or 20:4 c, is an intriguing straight-chain polyunsaturated cis fatty acid.

This unique compound is the cis-isomer of Eicosatetraenoic acid, 20:4, and is a vital member of the eicosanoid family.

Cis-Eicosatetraenoic acid plays a significant role as a major component of phosphatidylcholine and is involved in the production of prostaglandins.

These prostaglandins are lipid molecules synthesized at sites of tissue damage or infection, playing a crucial role in responding to injury and illness.

Table of Contents

The cis-Isomer of Eicosatetraenoic Acid

20:4 c is the cis-isomer of Eicosatetraenoic acid 20:4, and it's a polyunsaturated fatty acid (source ).

Isomers share identical chemical formulas but possess distinct structures.

In this case, 'cis-isomer' signifies that the functional groups are on the same side of the carbon chain, as opposed to the 'trans-isomer,' where they're on opposite sides of the chain (source ).

Benefits of Cis-Eicosatetraenoic Acid

Cis-Eicosatetraenoic acid is believed to have several remarkable benefits.

It's thought to help prevent retinal degeneration caused by light injury, and it's a powerful anti-inflammatory, antitumor, and antimetastatic agent.

Additionally, it might contribute to reducing vascular risk and lowering low-density lipoprotein (LDL) cholesterol.

Cis-Eicosatetraenoic Acid in Marine Lipids

This valuable fatty acid is predominantly found in animal sources and marine lipids.

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

Moreover, you can also find cis-Eicosatetraenoic acid in plant-based sources like flaxseed, soybeans, walnuts, oats, spinach, and peanut butter.

Foods with Cis-Eicosatetraenoic Acid (20:4 c)

You can primarily find cis-Eicosatetraenoic Acid (20:4 c) in poultry, pork, sausages, luncheon meats, dairy, and egg products. Here are some examples of food sources:

Explore Further with Our Nutrition Tool

If you're curious about foods rich in cis-Eicosatetraenoic acid or want to discover more sources, our nutrition tool offers regularly updated top-ranked lists of foods for over 200+ nutrients.

Unearth a variety of foods loaded with cis-Eicosatetraenoic acid to enhance your diet for a healthier lifestyle.

Sara Niemelä

co-founder Care Omnia, Head Content Creator

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

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