Hi,
I use xylitol, i got it from Go-Vita in Woy-Woy, it was $15.90 for 500g, it has no carbs and it so sweet! i have used it in quite a few things now with no problem. I tried Stevia which was too expensive, i am on a limited budget, and splenda had carbs so i thought that the xylitol was the way to go, i get my sweetness without the carbs!