(Speculation) I believe it has more to do with the psychological effect of "knowing" beforehand that you are about to consume a high amount of sugar. In the ca

(Speculation) I believe it has more to do with the psychological effect of "knowing" beforehand that you are about to consume a high amount of sugar. In the case of artificial sweeteners you know it's going to be sweet, yes, but you also already know that it is not real sugar and you are somehow "safe", and so, the stress involved is diminished.