I haven't started the cleanse yet, but a few weeks ago my kids and I had some weird intenstinal bug that manifested itself differently with each of us. Vommitting, fever, diahrea, etc..
Anyways we are back to our usual self and our BM's have been anywhere from dark green to bright green. I'm guessing its bile but its kind of weird. My kids and I have just been eatign fruit since we were sick,.. so its not green veggies.