Update

Looking through my old posts, I came across this:

Question: For how many straight days can a five year old have tomato soup for breakfast followed by a  jam sandwich for lunch without doing himself some serious harm?
Answer: It's an on-going experiment. I'll let you know in due course.

In case any one is keeping track, turns out it's possible to have the soup breakfast/jam sandwich lunch for at least four years. And it's still a work in progress.