[tstrimple]

Anecdotally my son is color blind and has on more than one occasion eaten a full loaf of moldy bread without realizing it. He's a bit like me in that he'll go a long time without any desire to eat toast or sandwiches, and then one day you decide you need an entire loaf's worth. He has also never been a picky eater with the one exception of large sliced / chunked tomatoes.

[jp0d]

That's what I was wondering about. Sorry to hear about your son eating mouldy bread.

[cafard]

I was once on a camping trip where the lunches consisted of two sandwiches: one slice of white bread, one slice of brown bread, and two slices of green bread. We all returned in good health.