I've read that some people have had a cup or 2 of peppermint tea daily, but I don't think I've noticed any other tea being mentioned, besides the peppermint and lax teas, that is. I would think that one cup of mint green tea a day couldn't really hurt, except for the fact that there's caffeine in the tea, and that's something you definitely don't want while cleansing. And if it's caffeine-free, that means that chemicals have been used to treat it to remove the caffeine. Personally, I would stay away from all of that just to be on the safe side, and to boost the lovely detoxing ;) I treated myself to a nice cup of green tea straight away when I was done my cleanse, though, let me tell you! I missed it lots.