Omega 3 is a naturally occurring fatty acid in plants and marine animals. In fact, omega 3 is a group of acids. Two of these acids are found in plenty in fish oil. Eicosapentaenoic acid and Docosahexaenoic acid, respectively called EPA and DHA, in fish oil has several health benefits, when consumed. EPA can break down prostaglandin, thromboxane, and leukotriene, which are the main culprits in causing an arterial blockage. DHA is important for the proper functioning of the eyes, the cerebral cortex of the brain, and sperm formation in humans.