Optimum Fish Oil Softgels is a natural supplement filled with Omega-3 essential fatty acids. Fatty acids are the basis of fats and oils, and, despite popular belief, are necessary for overall health. These fatty acids are termed "essential" because your body cannot manufacture them by itself. EFA's must come from food or supplemental sources. They are also essential because they are a component of every living cell in the body, and are necessary for rebuilding existing cells and the production of new cells.* Studies suggest fish oil supports healthy heart function and joint flexibilityFish Oils contain long-chain fatty acids, including docosahexaenoic acid (DHA) and eiscosapentaenoic acid (EPA). DHA and EPA are omega-3 fatty acids with important roles in numerous metabolic functions. They are found in foods like salmon and supplements such as ON Fish Oil Softgels. Our Fish Oil Softgels are mercury-free and enteric-coated, which means that you get all the benefits of fish oils without the fishy aftertaste that you might encounter without this special coating.