Soybean oil is low in saturated fat, contains no trans fat, and is high in poly- and monounsaturated fats. It's also the principal source of omega-3 fatty acids in the U.S. diet, and the primary commercial source of vitamin E . Soybean oil's clean, natural taste and nearly imperceptible odor support and enhance the natural flavors of prepared foods. Whether used as a shortening for old-fashioned pie crust or blended with a flavored vinegar for a new dressing, soybean oil's neutral flavor lets the real taste of the food product come through.