That is an understatement. Sucralose, aka Splenda, will massacre your good bacteria, but leave your bad bacteria, especially Enterobacter, untouched. Enterobacter is one of the top obesity causing bacterias.
If you consume sucralose for 12 weeks, even discontinuing it for the next 12 weeks will not recover your healthy flora.
For the second time, a single capsule! of Phillips Colon Health Probiotic Support (actually a Kroger copy) has halted a several month GI disturbance for me (of course, I have to keep taking it for the effect to continue). Two of the three included bacteria types (Lactobacillus gasseri; Bifidobacterium bifidum; Bifidobacterium longum) — the second and third, target the colon very effectively.
Are other artificial sweeteners easier on the good bacteria or are they all about the same?