EPA(Eicosapentaenoic acid) and DHA (docosahexaenoic acid) are key omega-3 fatty acids found in fish oil. DHA plays a major role in the functioning of the central nervous system and the retina. EPA works with DHA to optimise the immune system and reduce inflammation. Both of these acids are absorbed into cell membranes maintaining the integrity of each cell. The body can produce small amounts of EPA and DHA from ALA(alpha-linolenic acid). Women convert around 21% EPA and 9% DHA whereas men convert about 8% EPA and a fraction of DHA.