Powdered sugar, also referred to as confectioner's sugar or icing sugar, is granulated sugar ground into a fine powder. Cornstarch added to the sugar at a rate of 3 percent prevents the powder from clumping or caking. The sugar is ground into three fineness levels with 10X being the most fine for use in icings and confections. Powdered sugar is high in carbohydrates and low in nutritional value.
Serving Information
Powdered sugar has a fine texture and dissolves quickly. For this reason, the common use for powdered sugar is as an ingredient in frosting or as a sweetener for baking and other confectionery treats. The serving size for powdered sugar is one cup.
Calories
A one-cup serving of powdered sugar is approximately 466 calories. Carbohydrates account for 100 percent of the calories. The calories in powdered sugar account for approximately 39 percent of the daily value based on a 2,000-calorie diet.
Carbohydrates
Powdered sugar contains approximately 120 g of carbohydrates per one-cup serving, which is 39 percent of the daily value. The entire carbohydrate value comes from sugar, as there is no fiber content in powdered sugar or cornstarch.
Protein and Fat
A one-cup serving of powdered sugar contains 0.1 g of fat. This trace amount of fat comes from the cornstarch and accounts for less than one calorie. Powdered sugar contains 0.0 g of protein and accounts for zero percent of the daily value based on a 2,000-calorie diet.
Vitamins and Minerals
Powdered sugar contains trace amounts of several vitamins and minerals. A cup of powdered sugar contains 0.0008 mg copper, 0.07 mg iron and 2 mg potassium. There is also 0.7 mg selenium, 2 mg sodium, 0.01 mg zinc and 0.023 mg riboflavin. The amount of riboflavin in powdered sugar accounts for 1 percent of the daily value based on a 2,000-calorie diet. Riboflavin is the B-2 vitamin and the only vitamin with a significant amount to calculate.
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