It's two cups of coffee with cream and a half packet of cyclamate in each cup! I dunno, it seems to me if my insulin was spiking, I would get that low blood sugar feeling WAY before the "hit the wall" feeling at the end of a run occasionally. Could be wrong, of course, been known to happen. But, there are lots of things I am willing to give up...coffee running (ask my PT) some sweeteners and diet sodas are not among those things! Moderation moderation. Thanks for your response.

Jo