Earlier quoted context omitted.
I'm not sure that stevia is an "artificial" sweetener.
Your body doesn't care whether something was made by humans or whether it was made by nature. It only cares about the particularities of the molecules involved.
What causes the difference in effect between glucose and artificial sweeteners appears to be the taste of sweetness without the carbohydrates that would go along with natural sources of sweet taste.
[1] Sucralose Affects Glycemic and Hormonal Responses to an Oral Glucose Load -http://care.diabetesjournals.org/content/early/2013/04/30/dc...