Essential fatty acids are those your body needs for health that can’t be synthesized by your body — you have to get them from food or supplements.
Of all the essential fatty acids, the omega-3s are the most abundant in the brain where they are are the preferred building blocks of brain cell membranes and nerve cells.
There are three kinds of omega-3s — EPA, ALA, and DHA — with DHA unarguably being the most important for your brain.
DHA accounts for 97% of the omega-3 fatty acids in the brain.