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Full list of author information is available at the end of the articleBackground Fish oils are the most common source of Omega-3 fatty acids, mainly eicosapentaenoic acid, (EPA 20:5) and doco-sahexaenoic acid, (DHA 22:6). It has been pointed out protective effect and beneficial effects of these fatty acids on heart health, cardiovascular disease (CVD), blood lipid profile, Type 2 Diabetes mellitus (T2DM), inflammatory and renal diseases and other illnesses [1,2]. Other potential mechanisms of cardiovascular protection by EPA/DHA may include lowering blood pressure, reduced anti-inflammatory effects, improved insulin resistance and decrease oxidative stress [3,4]. Most of these signs and illnesses are related to meta-bolic syndrome (MS). MS is defined as the presence of at least three of the five cardiovascular disease risk fac-tors in the following list: elevated fasting triglycerides (TG), decreased high-density lipoprotein cholesterol, in-sulin resistance, abdominal obesity and high blood pres-sure [3,5]. Accordingly nutritional modifications such a