Those of us who test our blood glucose after eating it have known this for years.
"To our surprise the mean postmeal glucose curves were essentially identical. Therefore, we studied five different subjects. The result was the same; that is, the curves were essentially identical (Fig. 1). In 10 people without diabetes, the Dreamfields pasta product we purchased did not result in an improved glucose excursion when compared with a commercially available traditional pasta product as would have been expected based upon the company's claim."