Each batch of nature made fish oil is processed using state-of-the-art molecular distillation or absorbent technology to assure high levels of purity. All batches of nature made fish oil are guaranteed to pass the stringent standards of the CRN (council for responsible nutrition) omega-3 monograph. EPA and DHA are the two omega-3 fatty acids found in fish oil. Science has shown that omega-3 fatty acids have cardio-protective benefits and may reduce the risk of developing heart disease later in life.