The term Omega Oil covers a large range of the omega oil family. Most common omega oils are Omega 3, Omega 6 and Omega 9, and occasionally Omega 7. However, we should concentrate on Omega 3, as omega 6 is quite prevalent in the western diet and omega 9 can be produced by the body.
Omega 3 is not all create equal though, and when looking for an Omega 3 supplement, look for those high in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These acids are highly available in fish oil, especially cold-water fish, thus its popularity as a natural health supplement.