In a bowl, combine the first six ingredients. In another bowl, beat egg whites, water and oil. Stir into dry ingredients just until moistened. Fold in blueberries.
Fill paper-lined muffin cups or muffin cups coated with nonstick cooking spray three-fourths full. Combine sugar and cinnamon; sprinkle over muffins.
Bake at 400 degrees F for 18-22 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pan to a wire rack.