DOUGLAS LABS - QÜELL Fish Oil® High DHA - 60 Count - NPN: 80028596 -- QÜELL Fish Oil® High DHA provides the omega-3 fatty acids DHA and EPA in a ratio of nearly 4:1. QÜELL Fish Oil® is unique among other fish oils for its critical extraction, purity, bioavailability and concentrations. Critical Extraction Supercritical CO2 advanced technology provides superior protection against oxidation. This extraction method uses less heat and no chemical solvents when compared to molecular distillation, resulting in fewer unwanted isomer formations and cleaner oil.DHA plays a major role in the structural integrity of neuronal membranes, and is essential for neurological and visual development. DHA is vital throughout pregnancy to support fetal brain growth and the formation of the retina and visual cortex. As the most abundant fatty acid in the brain, adequate amounts of DHA are also needed throughout adulthood for ongoing optimal function. Low levels of DHA have been correlated with changes in memory, visual and other neurological parameters.