An experimental, synthetic, noncaloric fat substitute composed of a mixture of 6-, 7-, and 8-fatty acid esters of sucrose. These esters are not decomposed by the digestive enzymes as are the triesters in natural fats; thus they are not metabolized and can be recovered from the excreta. The physical properties of sucrose polyester are similar to those of fats occurring in milk, margarine, and vegetable oils. It has been found effective in notably reducing body weight in preliminary trials when substituted for natural dietary fats in salad dressings, spreads, and milk mixture. Sucrose polyester also has a beneficial effect on serum cholesterol levels. It has met all FDA test requirements satisfactorily.