Per 1 bun serving: 80 Calories; 0g Saturated Fat--0% DV; 200mg--8% DV; 3g Sugars; 4g Fiber--16% DV. No bromate, no hydrogenated oil, 0 grams trans fat, no saturated fats. Lewis® American family owned & made since 1925. Complex Carbohydrates. The primary function of carbohydrates is to provide energy for the body, especially the brain and nervous system(2). Carbohydrates are classified as simple or complex (3). Most people should get between 45% and 65% of total calories from carbohydrates, preferably from complex carbohydrates (like Healthy Life Bread & Buns) and natural sugars (from fresh fruits, like apples)(4,5).