The stuff I'm drinking, Wonder Drink [www.wonderdrink.com], is an acquired taste and I've acquired it! They have four flavors. I enjoy it very much and plan on continuing to drink it. It can be mixed with juices or other teas too. The bottles are large so I tend to 'nurse' them for a week or longer.
I bought it at Fred Myers out in Washington State in their health food section, but when I got home to Indiana [no Freddies out here!] and began to look for it, I found it at vitacost! Who knew??? This is especially exciting because their shipping is always $4.95 no matter how much you buy and those bottles are big and heavy!
I know you can 'grow your own' but I'm just too darn lazy for that. haha