From the standpoint of dietitians, tuna is quite "high quality" fish. More fish oil, fish oil is not necessarily followed by more high-quality tuna oil is that it's not that much, fish oil ratio is quite high. 100 grams of bluefin tuna, EPA content of 159 mg alone, DHA content is up to 640 mg.
In addition, studies have also found that tuna contains taurine (an amino acid), also helps to increase immunity, lower blood pressure and so on. While fish oil content of bluefin tuna fish more than the average, but the price is relatively expensive, if only focus on nutrition, rather than for early adopters, emphasizes taste, eat tuna generally be more cost-effective.
Red meat tuna, is also relatively high iron content than tuna. 100 grams of fish like bluefin tuna, iron content of about 9 mg, tuna generally only about 2.4 mg, dwarf under mediocre more.
Fish oil is a fat, high-calorie foods are moderately taken, of course, beneficial. But eating more equal drink oil, natural inevitably gain weight, but also cause fatty liver; and long-term use, will allow to reduce the number of platelets, clotting time is prolonged. So, eat fish should follow individual physical condition and health conditions, under the direction of physicians take appropriate. Eating more fish or Omega-3 fatty acids not only enable the concentration of triglycerides in the blood is low, blood vessels maintain a smooth flow is not blocked, it can prevent serious arrhythmias, or even reduce platelet aggregation and blood pressure lowering effect; so for immune system diseases, inflammation, asthma, dry eye, brain dysplasia, gout, Alzheimer's disease, depression, bipolar disorder, hyperactive children, etc., if the diet Omega-3 fatty acid intake is insufficient, recommend fish oil supplements.