THE SUPERIORITY OF SEAL OIL:Seal oil is a superior source of Omega-3 compared to fish in many ways. DPA is present at very low levels in fish oils relative to EPA or DHA but is almost as important as either the EPA or the DHA. www.naturalomega-3.com/index.htmlSeal oil can supply up to 10(ten) times more DPA than fish oils. About a third of the long-chain Omega-3 fatty acids circulating in human blood is attributable to DPA. Because of this, DPA has become of interest to medical researchers in both France abd Japan. It seems that in the blood vessel walls, EPA may actually be converted to DPA as the effective agent. Japanese researchers at the Tokyo Medical and Dental University in Tokyo have shown that the one stimulating effect of EPA on endothelial cell migration occurs via DPA, which may act as a powering anti-atherogenic factor. Although it has been believed that EPA is the key in producing prostaglandin that keeps the artery wall soft and free of plaque, this study indicates that DPA may be 10~20 times more powerful than EPA in this effect. Seal oil is the ONLY supplement rich in natural DPA.With the exception of seal oil, the highest incidence of DPA is in human breast milk. Deficiencies in Omega-3 PUFA&＃39;s such as DPA may result in impaired development of visual acuity and motor skills, according to several studies. The relative proportions of Omega-3 PUFA in most fish oils does not correspond well with that of human breast milk, but seal oil has a more similar compositional structure. The absorption of seal oil into the human body is easier and more thorough than fish oils. In seal oil, the Omega-3 fatty acids are in the -1 and -3 positions of the -2 position. The Omega-3 content of Seal Oil is 20%~25%, which is higher than most fish oils, making seal oil supplements a much more effective source of Omega-3 than fish itself. Seal oil is virtually free of cholesterol, while many fish and fish oils are relatively high in cholesterol.