Thank you so much for the reply. I found weetabix, but it is a really long, large, crumbly cereal. Is that the kind you tried, or do they make other kinds? It looks like it might be a bit of a choking hazard?
We tried a tiny bit of bagle and he ate that ok. He didn't really eat enough to know if it will cause a problem. We will try a bit of brown bread and see.
How much of something does he need to eat to know if he will have a reaction?