Sisu Omega 3 1000 mg - Natural Orange Flavour - It is important to ensure an adequate intake of the healthy fats the brain and the body need. Omega 3 is one of the families of healthy fatty acids that are essential, meaning they must come from your diet, by eating fatty fish several times a week, or be gained through supplements. The active compounds in omega 3 are DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) and they are only found in fish. Omega 3 fatty acids help to decrease “bad” cholesterol and increase “good” cholesterol, which is important for heart health.