We are also in the asymptomatic state. Our almost 8-year-old was diagnosed with T1D in August 2016, and was identified then also as likely for having Celiac. We did end up doing the endoscopy, which confirmed his diagnosis. At that time, we started to rid the house of gluten, but also have 2 other non-celiac children. We slowly eliminated gluten-containing food, but ended up leaving 2 cabinets (out of 8) as non-GF cabinets. We got a separate toaster for GF break so that our other kids could still toast bread, if they wanted.
That said, since our celiac child is asymptomatic, we don’t REALLY know if he ever gets “glutened”. So we don’t have much else to provide from our recent experience.
I also have a question for the dual diagnosis, however. We have unconfirmed news that a GF diet can create inulin resistance. Our doctors/nurses have said they believe the high GI food simply makes it hard to break down, so the insulin takes longer to impact his BG level. However, we have seen instances where we are just pumping him with insulin, and no result. Has anyone else found there to be a link to celiac and/or a GF diet in conjunction with T1D and insulin resistance?