A good sugar substitute for caramel icing is Whey Low. This sweetener is created by combing sucrose, fructose and lactose, which all develop naturally.
Whey Low only contains 4 calories per teaspoon, making it a healthier alternative to granulated sugar. This substitute is ideal for those on diets or restricted diets. Whey Low is available in a variety of options, including brown sugar, confectioner's sugar, maple sugar, and table sugar.
As of 2015, Whey Low can be purchased at organic supermarkets and health food stores across the country. Whey Low can be used in the making of numerous baked goods, coffee and tea.