I just had an ER pediatric physician two days ago tell me that I read too many labels and I need to give DS1 wheat and barley so they can get an accurate Celiac test even if he is anaphylactic to those allergens. Are you kidding me? Even if he is diagnosed with Celiac he would still have to avoid wheat, rye, barley and most oats - oh yeah, his allergens.
I had an allergist office tell me that barley couldn't cause an ana rxn while I was watching DS1 have one from trace amounts. Same office told me to start feeding DS1 his allergens after the age of 2. Yeah, huge chain practice here in a my very large southern city.
Another allergist declared DS1 was allergic to wheat, rye, barley, oats, rice, corn, eggs, dairy, soy, peanuts and all tree nuts just by testing alone and refused in office food challenges (we did many behind her back at home as they were foods he was eating - corn, rice, dairy, soy). We found out a year later peanuts and tree nuts were a false positive because we had that allergist (third time is the charm) who had a clue in regards to food allergies.