The author of this article gets so many basic facts wrong that it's difficult to take anything he writes seriously.
Straight from the American Diabetes Association's website:
'Myth: Eating too much sugar causes diabetes.
Fact: No, it does not. Type 1 diabetes is caused by genetics and unknown factors that trigger the onset of the disease; type 2 diabetes is caused by genetics and lifestyle factors. Being overweight does increase your risk for developing type 2 diabetes, and a diet high in calories, whether from sugar or from fat, can contribute to weight gain. If you have a history of diabetes in your family, eating a healthy meal plan and regular exercise are recommended to manage your weight.'