Omega -3 polyunsaturated fatty acids are found in oils from certain types of fish, vegetables and other plant sources. These fatty acids are not made by the body and must be consumed in the diet. Omega-3 polyunsaturated fatty acids work by lowering the body's production of triglycerides.
Fish oil is a good source of omega-3 fatty acids, which plays an important role in brain function.
People with depression may have low blood levels of brain chemicals called eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). EPA and DHA can befound in fish oil.
High levels of triglycerides can lead to coronary artery disease, heart disease and stroke. Fish oil used together with diet and exercise help to lower triglyceride levels in the blood.