An analysis published recently in the American Heart Association’s journal, Circulation, adds another piece to the puzzle of omega-6 fatty acids and heart disease. The analysis pooled the results from 30 observational studies from 13 countries that looked at circulating and tissue levels of the major dietary omega-6 fatty acid, linoleic acid, and the presence of cardiovascular disease. Higher levels of linoleic acid in the body were significantly associated with lower risks of total cardiovascular disease, death from a cardiovascular event, and ischemic stroke, but not with coronary heart disease. Omega-6 fatty acids can be found in plant oils such as soybean and corn oil.