Nutrient

ALA (Omega-3)

Established research area

A plant-based omega-3 fatty acid found in chia seeds, flax, and walnuts. The body converts only a small share to EPA and DHA.

Often discussed in relation to

Commonly noted: ALA (alpha-linolenic acid) is an essential omega-3 fatty acid the body cannot make, so it comes from foods such as flaxseed, chia, walnuts, and vegetable oils; it is a structural part of cell membranes and a source of energy, and the body converts a small portion into EPA and DHA.
Low intake: Very low omega-3 intake is commonly discussed in relation to rough, scaly skin, though a true shortfall is rare on a typical diet.

Source: NIH ODS

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