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Life is everything. Let's make it a healthy one!

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Life is everything. Let's make it a healthy one!

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What Are trans-Dienoic Fatty Acids & What Foods Can I Find It In?

trans-Dienoic fatty acid is a polyunsaturated trans fatty acid with at least one double bond in the trans configuration.

Natural dienoic fatty acids are found in meat and dairy products. But also in marine invertebrates, like mollusks, and cephalopods.

trans-fatty acids, which have been hydrogenated, have shown to increase the risk of cardiovascular disease.

trans-Dienoic Fatty Acid In The Diene System

trans-Dienoic fatty acids are fatty acids within the conjugated diene system. (source)

A diene is a compound that contains two double bonds, usually among carbon atoms.

trans-Dienoic Fatty Acid In Milk

You can find trans-dienoic fatty acids in meat and dairy products. The main isomer is about 1% of the fatty acids in milk fat. (source)

trans-dienoic fatty acids in dairy are essential for optimum milk yield.

Long-chain conjugated dienoic fatty acids can be found in plant sources. Conjugated dienoic fatty acids in refined oils are mainly the product of processing. (source)

Common dienoic acids:

  • cis-9,12-octadecadienoic acid (linoleic acid)
  • trans-9,12-octadecadienoic acid (linelaidic acid)
  • 5,9-heneicosadienoic acid
  • 5,9-docosadienoic acid
  • 5,9-tricosadienoic acid

Foods You Can Find trans-Dienoic Fatty Acids In

You find trans-Dienoic Fatty Acids mostly in dairy and egg, sausage and luncheon meat, nut and seed, and beef products.

Examples of food sources include

Foods in our nutrition tool

You can find 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 trans-Dienoic Fatty Acids, we recommend you visit our tool.

Here's our top-ranked list of foods that contain trans-Dienoic Fatty Acids.

Sara Niemelä

co-founder Care Omnia, Head Content Creator


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.