It taste kind of rough at first, but I'm so used to it now that I don't even notice. I just mix it with about 6 onces of water and down it real fast. I mainly use the plain stuff, but I had some GNC brand glutamine that had some sweetner and cherry flavoring added to make it taste good, but I don't like the idea of a sugar laden glutamine sup. I can understand a little dextrose or glucose polymer solution with my creatine, but that's it for me.