Sucralose supposedly destroyed the thyroid in lab animals. After they lived off of a diet of just sucralose. More than you could ever imagine consuming. I think that is how the test went at least. Like most other things, long term studies are lacking. You can buy into it now and hope it is good or wait 60 years until you are nearly dead to find out for sure whether it was good or bad.
For the best diet drink, try "Waist Watchers". Comes in root beer, orange, ginger ale, etc.
And yes, water is > *
