Fish Oils and Omegas are polyunsaturated fats that the body can't make and is essential since it's used in almost every process in the body. For this reason, it's one of the most popular dietary supplements on the market. Omega-3 fatty acids come from fish and plant sources. Supplements generally extract omega-3 fish oils from herring, tuna, anchovies, and mackerel but it's also found in salmon and shrimp. These animal sources contain eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and omega-3s from plant sources including fruits, vegetables, beans, nuts, and seeds contain alpha-linolenic acid (ALA) which converts into EPA and DHA in the body.
Omega-3s are essential in the formation of cell membranes and fighting inflammation because it improves circulation and oxygenation of the body. Omega-3 fatty acids promote cardiovascular health, eye health and support brain cell function to lower levels of depression and mood disorders. There is a wide selection of omega-3 supplements from plant or fish oil as well as a combination of the two.