0.2 Net Carbs per Piece. Zero Sugar Carbs. For low carb diets. Splenda brands. Whitman's Net Carb Calculation Chart (Serving Size 3 Pieces): Total Carbs (21.5g) - Fiber (0.7g) - Sugar Alcohol (20.3g) = Net Effective Carbs (0.5g). Includes only those carbs that cause a noted effect on blood sugar.