This was a topic on the lowcarb support list about a year ago.  I
don't remember the specifics, but the short answer is no.  The
chemical that makes stevia sweet is a different type of chemical than
the active ingredient in aspartame (nutrasweet).

Lisa Sporleder
Ester, Alaska  (my yard hasn't had frost yet, but some places have)

>  I tried some powdered stevia for the first time yesterday, and I
>  was wondering if anyone knew what exactally makes it sweet? I guess
>  it's not a carbo or you paleo-people wouldn't use it, right? It
>  (the stevia) tasted a bit like nutrasweet to me, I was wondering if
>  maybe it contained something chemically similar to
>  phenal-whateveritis?