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What Is Linoleic Acid?

Linoleic acid, 18:2, is classified as a polyunsaturated omega-6 fatty acid. It is essential, meaning that the consumption of this fatty acid is vital for our health and must be obtained by our diet.

Linoleic acid is also essential

Linoleic acid is a polyunsaturated fatty acid and an omega-6 fatty acid. (source 🗗)

It’s essential functions in maintaining the epidermal water barrier of the skin. (source 🗗)

Linoleic acid is also essential for the synthesis of various hormones. (source 🗗)

Linoleic Acid In Food

Linoleic acid is the most highly consumed polyunsaturated fat in our diet. Like all fatty acids, it can be a source of energy. (source 🗗)

The major dietary sources of linoleic acid are vegetable oils, nuts, seeds, meats, and eggs. (source 🗗)

Vegetable oils are widely consumed in the Western diet, like cottonseed, corn, soybean, safflower, and sunflower. Linoleic acid can be present in these commercial oils at levels >50%. (source 🗗)

If you are interested in a list of foods where you can find this nutrient. Go to our nutrition tool and check out linoleic 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!