An omega-3 fatty acid found in fish oil, DHA (docosahexaenoic acid) may help lower your risk for heart disease (the leading cause of death in the U.S.). Studies show that DHA can help reduce a number of cardiovascular risk factors, including high blood pressure and high cholesterol. In addition, DHA is known to curb inflammation (a biological process closely linked to the development of heart disease).
Eating cold-water oily fish like salmon, sardines, mackerel, and herring several times each week can help you achieve ample intake of DHA. If such foods aren't a regular part of your diet, however, you may want to consider taking DHA in supplement form. Many DHA supplements also contain (eicosapentaenoic acid), another heart-healthy omega-3 found in fish oil. Read the article: DHA - What You Need to Know.