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Every bodies response to artificial sweeteners is different. Curiously the perceived sweetness can result in a cephalic insulin response by itself. I.e. drink a zero calorie drink with a artificial sweetener can create a insulin spike!

The best way to see your bodies reaction to a sweetener is to get your blood sugar very stable, then eat a large sample of the sweetener and monitor your glucose response over a hour. This is most easily done with a CGM.

If your sensitive to the sweetener you will see your glucose decrease! Because your body is producing insulin from the taste alone.

If your blood glucose goes up, then the sweetener has sugar in it anyway, so its not a artificial sweetener... It's just a sweetener