The Institute of Shortening and Edible Oils (ISEO) is a trade association representing the refiners of edible fats and oils in the United States. Our members represent approximately 90-95% of the edible fats and oils produced domestically (28 billion pounds) that are used in baking and frying fats (shortening), cooking and salad oils, margarines, spreads, confections and toppings, and ingredients in a wide variety of foods. On this site we provide resources relating to the edible fats and oils industry, including various published materials; information on fats and oils, nutrition, processing methods and related technical information; statistics; and contacts and links to manufacturers, refiners, trade associations, and government agencies. Please select from the navigation bar to browse our pages.