Anyone allergic/can't tolerate Splenda?

Does anyone have a problem with Splenda? This stuff seems to be included in a lot of the protein shakes. I notice a lot of other artificial sugars are used too. In my experience they leave an unpleasant after taste. Any products that use Stevia (sweet leaf)?

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.