The title is wrong chewing carbohydrates for long will break them down to sugar. Try chewing bread for some minutes or fall a sleep with bread in your mouth. Th

The title is wrong chewing carbohydrates for long will break them down to sugar. Try chewing bread for some minutes or fall a sleep with bread in your mouth. This will taste quite sweet. Hence chewing longer bread (pizza) will become more sugary and your insulin output rises. It is also written in the abstract. The paper reports that more chewing lead better satiety and facilitate glucose absorption. From what I understand this means that they chewing gives you more net energy out of your carbohydrate food.