Nutrient

Linoleic acid (omega-6)

Established research area

The main omega-6 polyunsaturated fatty acid — an essential fat the body cannot make, abundant in vegetable oils, nuts, and seeds.

Commonly noted

Commonly noted: Linoleic acid is the main omega-6 fatty acid and an essential fat the body cannot make, so it comes from food such as vegetable oils, sunflower seeds, walnuts, and corn; it is a building block of cell membranes and a source of energy.
Low intake: Very low omega-6 intake is commonly discussed in relation to dry, scaly skin, though a true shortfall is rare on a typical diet.

General reference figures for a typical adult, not a personal target.