What is the difference between Ethyl Ester (EE) and Triglyceride (TG) fatty acid fish oils?

Triglycerides are the fat form most commonly found in nature, and wild fish. This structure is comprised of three fatty acids + glycerol backbone. When a fish oil is refined or “molecularly distilled” there is an introduction of alcohol which is used to remove the glycerol backbone of natural triglyceride fatty acids. What you are left with is the ethyl ester form of fatty acids comprised of one fatty acid + an ethanol backbone. This process of molecular distillation or refining is typical when concentrating EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) omega-3 fatty acids specifically. Pure Alaska Omega Wild Salmon Oil is unrefined and the fatty acids are left in their natural triglyceride state – meaning the fat is recognized as easy-to-absorb when consumed.