I saw a DAN! doctor for my daughter, and he suggested food allergy testing through Sage Labs, and because she had positive antigliadin IgG antibodies suggested a gluten free diet...and then anything else she would have tested positive too. She turned 18 and didn't want any more testing.

We also consulted with another DAN! doctor about pyroluria, a condition my daughter tested positive, too. Actually, I learned about pyroluria on Braintalk from a woman named FJ, whose son's had TS among other things, all responding very well to treatment for pyroluria. In your spare time , you might want to read about that. There is a page for it in The Gluten File, or you can google it. Try googling it with "FJ" and you might find some her posts. Also, there are a small number or TS patients who respond to dietary changes.

I've heard PICA can be related to iron deficiency. THat has been checked?

Cara