DHA Forte provides a rich source of the essential fatty acid DHA which helps contribute to the maintenance of normal brain function and healthy vision. Combined with EPA, HealthAid DHA Forte also helps contribute to the normal function of the heart. All HealthAid fish oils are sourced from the purest waters and are virtually free of all known impurities, such as dioxins, dioxin-like PCBs, furans, mercury and lead commonly found in fish oils.