Hi Diana. IGG means that your child is intolerant, as opposed to anaphlyxis-type allergy. If your children are allergic to grasses, you also need to keep in mind that most grains, including wheat and rice, are members of the grass family. An allergy or intolerance to grass could very easily translate into an allergy or intolerance to wheat or rice. Did your daughter have an endoscopy with biopsy for a diagnostic tool, or just the bloodwork? It is possible that she could be celiac, just not have enough damage to show up on tests. Did she have the genetic test run? I hope you are able to figure out what is going on with your kids soon!

~Dessa~