Maltitol is a natural sugar substitute that comes in crystalline form and is ideal for those looking to reduce their calorie intake without sacrificing sweetness. It is produced from maltose, which is a product of corn-based starch, and offers a sweet taste that resembles sugar while maintaining the same texture and volume. With about half the calories of sugar, maltitol is partially absorbed and metabolized as glucose in the body, making it suitable for diets that limit carbohydrates.