Omega-6 fatty acids that is found in vegetable oils, nuts and seeds are a beneficial part of a heart-healthy eating plan, according to a science advisory published in Circulation: Journal of the American Heart Association. The association has recommended consumption of a minimum of 5%-10% of daily calories from omega-6 fatty acids. It also recommended that the omega-6 comes from foods, not supplements. Most Americans actually get enough of these oils in the foods they are currently eating, such as nuts, cooking oils and salad dressings, the advisory reports.