The allergy (IgE/RAST) tests give a guide, but are not foolproof. IgG and other food intolerance testing is more inaccurate, and the findings are inconsequential in most cases. Lots of cross-reactions occur, and some 1-2 results may be false positive. If no reaction occurs with eating those foods, it is neither healthier to avoid them, nor harmful if they are eaten. His allergies could still improve in the years ahead as he matures, however, it sounds like he does not have a history of severe reactions to specific foods. It seems that allergy testing was not needed and should not influence his food choices. You should test those foods that he may be sensitive too and that the tests indicate are of concern, but if he tolerates them well without experiencing any symptoms, there is no reason for you to avoid them. Plus, exposure to small amounts of mildly allergic foods may actually aid his recovery and help build tolerance to those foods. I also don’t think the occasional dairy or wheat on special occasions will be significant, unless it is determined to be celiac, allergic or wheat intolerant. If he is already consuming the Ezekiel bread without difficulty it sounds like none of these problems exist.