Deep-sea fish oil itself does not have pharmacological effects, but some of the ingredients contained in deep-sea fish oil may have some nutritional value. Deep-sea fish oil, as its name suggests, refers to the unsaturated fat components extracted from the body of fish in the deep sea, simply put, it is the oil in the body of fish, mainly EPA and DHA. At present, there is no relevant research or report that the EPA and DHA contained in deep-sea fish oil have the effect of cleaning blood vessels. The human body can generate saturated fatty acid components, but can not synthesize enough unsaturated fatty acids, so it must be extracted from food, so people need to eat more vegetable oils, vegetables, etc., because deep-sea fish oil contains a large number of unsaturated fatty acids, so it has a certain nutritional value. Although deep sea fish oil exists in a certain nutritional value, but ultimately can only be regarded as health care products, and can not be used as medicine to treat diseases. It is recommended that people with basic cardiovascular and cerebrovascular diseases need to go to the relevant specialties in regular hospitals and choose regular medication.