Docosahexaenoic acid (DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, sperm, testicles and retina.

A number of studies have shown that higher intakes of omega-3 oils significantly reduce the incidence of Alzheimer’s disease as well as vascular dementia, and improve quality of life and memory in those affected by dementia.

DHA maintains the activity of a key cell membrane enzyme called Na+/K+ ATPase that extracts energy from ATP to drive the cellular sodium pump, which controls electrical impulses between cells.  

Another essential cognitive process controlled by DHA is regulating the brain‘s concentration of phosphatidylserine (PS), which is also vital for cell survival.

A number of studies have shown that omega-3 oils—especially DHA—can also support healthy levels of neurotransmitters, the chemical messengers between cells.

DHA has rather complex effects on a number of neurotransmitters, including serotonin, norepinephrine, acetylcholine, glutamate, and dopamine.