Olympian Labs Omega 3 Fish Oils are obtained from fish found in cold, deep water. These fish provide more of the Omega 3 factors than other fish. These essential fatty acids have an effect on a variety of problems including the coronary artery problem and lowering cholesterol and triglyceride levels. Because essential fatty acids are found in high concentrations in the brain, they are essential for nerve conduction and brain function. A deficiency in the essential fatty acids may impair learning ability and memory.