Meg- they have a Nectar Naturals line that's sweetened with stevia & lo han extracts. I'd rather use those then any of the other options- I'm okay with Splenda for some things, but not constant daily use. I try to avoid other artificial sweeteners for the most part and I also have to avoid all forms of corn & corn sweeteners as much as I can, including maltodextrin.
Heres the ingredients for Nectar Naturals:
Whey protein isolate, citric acid, natural flavors, stevia leaf extract, lo han fruit extrct, lecithin, lycopene.
Of course they don't have a lot of options in the Nectar Naturals line with only Tealicious or Peach
hopefully they will come up with other flavors in the future.