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What Is Palmitelaidic Acid (16:1 t) & What Foods Can I Find It In?

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3D-model of Palmitelaidic acid (16:1 t) (src)

Palmitelaidic acid, 16:1 t, also known as 9-trans-Hexadecenoic acid. It’s the trans-isomer of palmitoleic acid 16:1.

It’s a straight-chain, monounsaturated trans fatty acid with a trans-double bond.

trans-Isomer of Palmitoleic Acid

Palmitelaidic acid, 16:1 t, is the trans-isomer of palmitoleic acid (16:1). Palmitelaidic acid is a monounsaturated fatty acid.(source )

Isomers are compounds that contain exactly the same number of atoms. 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 )

Palmitelaidic Acid In Dairy

The largest sources of palmitelaidic acid are ruminant meat and milk.(source)

Palmitelaidic acid has been reported as the predominant trans-16:1 isomer in cheeses made with goat and ewe milk.(source )

Foods You Can Find Palmitelaidic Acid (16:1 t) In

You find Palmitelaidic Acid (16:1 t) mostly in dairy, beef, sausage and luncheon meat, lamb, veal, and game products.

Examples of food sources include

  • Whipped Butter
  • Beef Sweetbread
  • Heavy Whipping Cream
  • Cream Cheese
  • American Cheese
  • Cheddar
  • Cheese

Foods That Contain Palmitelaidic Acid (16:1 t) 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 Palmitelaidic Acid (16:1 t) we recommend you visit our tool.

Here's our top ranked list of foods that contain Palmitelaidic Acid (16:1 t).

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.