The present invention relates to the improvement of food items through the increased utilization of plant-derived stearidonic acid. Many long chain fatty acids have been classified as being Omega 3 and have been shown to provide several health benefits, including heart health. According to the current invention plant-derived stearidonic acid (18:4.omega.3) has been incorporated into a wide range of food products by using either oil or flour processed from soybeans with enhanced levels of stearidonic acid. These foods range from oil-based products (salad dressing, mayonnaise) to dairy products (milk, cheese) to prepared foods (entrees, side dishes). In addition to improved health benefits the current invention provides food rich in Omega-3 fatty acids that have enhanced storage and/or shelf life characteristics.