After watching SuperSize me I had a horrible craving for a Big Mac, so I went out and got one. I don’t eat fast food very often (maybe once a month), and guess what… it wont kill me, or you for that matter. Everything in moderation.
Besides, eating anything 3 times a day for 30 days (even brocolli!) is going to prove to be unhealthy for you. You cannot get all of the vitamins and minerals your body needs from one source.