garhi
I was wondering about this myself! I drink mate daily, and started to do so in order to quit coffee. Mate does contain caffeine, or caffeine-like chemicals, although it obviously manifests differently than coffee. I personally don't see any inherent "problem" with it, I wonder what Mr. Burroughs would say (you would assume he didn't know about it). I say it's your "film" (your life), God gives you permission to decide for yourself how YOUR fast should be done. Let me/us know how it goes with the mate!