Fish oil is not bad for a person, and it has a variety of health benefits, such as decreasing the risks of stroke, heart attack, obesity and dyslexia, according to WebMD. Fish also slows down the aging process of the body by enhancing telomeres in DNA structure, claims Women's Health.
Fish oil has essential omega-3 fatty acids that the body needs to function, reports WebMD. Fish oil supplies the body with fatty acids that the body is unable to produce for itself. Omega-3 fatty acids and fish oil treat eye-related ailments, such as dry eye, macular degeneration and glaucoma. Fish oil also lowers blood pressure and manages triglyceride levels, which are unhealthy fats that pertain to cholesterol.