I can understand when people in general feel shame over a social misstep and they alter their behavior so that they act more appropriately when the situation presents itself again. That kind of shame promotes social intelligence and good culture.
But the kind of shame most people talk about when it comes to diabetes is a debilitating, punishing, and persistent emotion that produces no good. In this case it is never appropriate. And it’s not just fanciful thinking. There is actual science that demonstrates the genetic basis of all types of diabetes.