Since amines are the primary culprit, and we were (inadvertently) serving amines almost every day, John might not react to anything else. Perhaps he can eat bread and milk and corn and apples and so on. With renewed excitement we brought wheat back into his diet, and paid the price almost immediately. He had a terrible week at school. In fact we kept him home two of the five days - he was simply out of control. And that strange breath was back - the smell of fermented grain or day-old beer. Five months ago I thought it was sugar, or yeast. Now we know it represents improperly metabolized wheat. We went back to rice noodles and rice bread etc, and the strange breath faded away. He'll have to be gluten free for a while, perhaps for life. I'll run another test next year to see if he has developed a tolerance.
NFF: Unfortunately the bad behaviors remained. What we smell on his breath is only part of the story.