the one thing I can say is that he can't go nuts. he shoudl add a fruit or a bread back and stick to that for a week and see if he loses. If so, add another for another week and so on...
That's how I messed up this time last year. I never even got to Phase 2!!
What I would look for in both bread and cereal is low sugar, high fiber, no white flour...but then again, I am no expert. Laurie???