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What Is cis-Eicosapentaenoic Acid?

cis-Eicosapentaenoic acid, 20:5 c, is a straight-chain polyunsaturated cis fatty acid whose double bonds all have the cis configuration. It’s the cis-isomer of Eicosapentaenoic acid, EPA, 20:5.

cis-Isomer Of Eicosapentaenoic Acid

20:5 c is the cis-isomer of Eicosapentaenoic acid, EPA, 20:5. 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 🗗)

Where To Find cis-Eicosapentaenoic Acid

cis-Eicosapentaenoic acid is mostly found in fish oil and has many potential health benefits. (source 🗗)

If you are interested in a list of foods where you can find this nutrient. Go to our nutrition tool and check out cis-Eicosapentaenoic acid

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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 have spent thousands upon thousands of hours reading, analyzing, categorizing and comparing research studies. Nutrition is the foundation you build a healthy and fulfilling life upon!