90 Calories. Naturally and artificially flavored. Kellogg's Special K bars are made with the great taste of Special K and are drizzled with lightly-sweetened, yogurt-flavored icing. Help yourself. Exchange: 1 Carbohydrate. The dietary exchanges are based on the Exchange Lists for Meal Planning, Copyright 2003 by The American Diabetes Association, Inc. and The American Dietetic Association. Product of Mexico.