Concentrated Fish Oil Extract. Heart, Brain and Immune System Health. Omega 3 fatty acids are essential for overall health, especially immune system, brain and heart health. Omega 3's also help prevent inflammation and improve skin condition. Most modern daily diets do not supply enough Omega 3's, yet supply too many Omega 6's (an excess of which increases the risk of some cancers, allergies and cardio-vascular disease). For this reason it is important to supplement only with Omega 3's on a daily basis.