American’s Own Mighty Cubs Omega-3 with DHA. DHA, which is vital for health brain development and vision in growing children. A study done at Oxford University found that Omega-3 fatty acids could improve reading and behaviour. DHA & EPA are essential fatty acids found almost exclusively in fish that live in deep, cold water. These fatty acids are key building blocks in every cell in the body. They are recognized for their health benefits in all life stages and are essential components as the body grows and develops.