DHA is an essential fatty acid that makes up ~27% of the adult cerebral cortex of the brain! Studies suggest that DHA has an important role in optimal fetal neurodevelopment, as well as in the healthy transmission of neurotransmitters like serotonin. DHA is also the most abundant omega 3 in the visual system, and healthy levels of DHA are associated with fewer symptoms of dry eyes as well as reduced risk of macular degeneration. It's not just about your brain - studies suggest that omega-3 supplementation is associated with healthy heart functionlower risk of metabolic syndrome and reduced activation of Nf-KB, a molecule that activates genes linked to inflammation and is associated with many major diseases.