Stevia is the sweetener that was used in the original low calorie coconut lime Rocky Mountain High non-energy drink. It was of course still infused with hemp seed extract and contained a small amount of sugar as well. It was my favorite at the time.

Stevia does have a discernible after taste, somewhat like licorice, but it's really only noticeable in certain foods or beverages, though maybe more so by certain individuals verses others. I never noticed anything but excellent flavor in the coconut lime low cal, and I loved that it was caffeine free so it could be used as an awesome mixer.