I first heard about this stuff in the Bethenny Frankel book when I read it months ago. She replaced coffee and other caffeinated unhealthy drinks with a daily serving of kombucha. It's pretty much fermented Chinese tea that contains billions of probiotic flora (lactobacillus bacterium and S.Boulardi) that's been flavored and bottled for us to enjoy. You can actually see the bacterial cultures floating around in the bottle!
Among it's claimed benefits is to support digestion, metabolism, immune system, appetite and weight control, liver function, body alkalinity (which I've been lectured about by my nutritionist), cell integrity, and healthy skin and hair. Mind you I don't believe in miracle drinks, hence the word "SUPPORT". I figured if Bethenny does it it's got to be good for something.
There's only 2 places in my whole home town that sells Kombucha and of them is Whole Foods! I've been drinking this stuff since I discovered it and I can definitely attest to the digestion and appetite control benefits. I also just really like it, I like the way it makes me feel especially when compared to the way drinking caffeine makes me feel. If you're trying to ween out of your excessive coffee fix or even those sugary drinks you're hooked on, I definitely recommend you try this it. My personal favorite is the Synergy brand guava goddess kombucha. I'll warn you though..it's acquired taste!