Quite a complex topic this but at the same time an interesting one. Omega 3 isn't just one substance, Omega three are fatty acids just like Omega 6 fatty acids found in oils and meat etc. Omega 3 are EPA, DHA, and ALA . Some experts have said that the balance between Omega 6 fatty acids and Omega 3 is key, but just as many say this is nonsense. Omega 3 do have benefits, mainly reducing inflammation in the body, such as in the arteries or joints.