Maltitol syrup is commonly used in low-carbohydrate food recommended for dieters. Maltitol syrup diabetes is used by those suffering from diabetes and need to keep their intake of sugar down. Maltitol syrup as a sugar substitute is quite popular, contains comparatively low carbohydrates than real sugar and has lesser effect on blood glucose. While one gram of real sugar provides four calories, the number of calories from each gram of maltitol is two to three.