I have been researching artificial sweeteners for a few years. Acesulfame potassium certainly has the least amount of studies indicating adverse side effects compared to other artificial sweeteners....
Acesulfame potassium is an artificial sweetner. It's typically present in only very small quantities in foods, so it's probably not going to noticeably increase potassium levels.
Chewing gum CAN plug them up. We had a dog eat one of those large packs of gum. The Vet said to give him 2-3 Tablespoons ( ours is a 65 lb dog) of Hydrogen peroxide. Make sure the dog is out side or...