On their website, at least for the Cherry Flavor Tablets, they show "corn starch," while the Original Flavor tablets show "May contain starch." https://www.gaviscon.com/products/tablets.html   Their liquid versions look naturally gluten-free: https://www.gaviscon.com/products/liquid.html

Were you eating lots of gluten daily for 6-8 weeks leading up to your blood test? If not, this can cause lower antibody levels, and possibly false negative results. It's unfortunate that they didn't do a Total IgA count, because if you have naturally low IgA it could lead to false negative test results. The good news is that you could get that test done later and not have to be on a gluten challenge to get those results.  Approximately 10x more people have non-celiac gluten sensitivity than have celiac disease, but there isn’t yet a test for NCGS. If your symptoms go away on a gluten-free diet it would likely signal NCGS.  

According to their website they are Gluten-free and vegan friendly: https://orgain.com/collections/protein-powder

Hi! thanks for the quick feedback! I tested negative for DQ8, but did test positive for DQ2 and DQ7. I’m not sure if there’s any information regarding DQ7 and the risk for celiac. I have included the reference ranges for the other labs below. It does not appear that my total IGA was tested. Thanks again.    CELIAC DISEASE PANEL GLIADIN AB, DEAMID. IgG: 7 INTERPRETIVE INFORMATION: <15 U/ML NEGATIVE >=15 U/ML POSITIVE  TTG IgA: <1 INTERPRETIVE INFORMATION <15 U/ML: NEGATIVE >=15 U/ML: POSITIVE  TTG IgG: <1 INTERPRETIVE INFORMATION <15 U/ML: NEGATIVE >=15 U/ML: POSITIVE  GLIADIN AB, DEAMID. IgA: 1 INTERPRETIVE INFORMATION <15 U/ML: NEGATIVE >=15 U/ML: POSITIVE 

Welcome to the forum, @np1209! Your understanding of the gene testing results is correct. DQ2 and DQ8 are the primary genes associated with the potential to develop celiac disease. My understanding is also that DQ2 alone represents stronger potential than DQ8 alone. But we need more information with regard to your antibody test results. You need to include not only the raw test scores but the reference ranges. There are no industry standards for reference ranges yet as each lab develops the tests a little differently. Another question I have is are the results you posted above reflective of all antibody tests that were ordered? I don't see a listing for "total IGA" which should always be included so as to check for IGA deficiency. IGA deficiency can result in false negatives on individual IGA antibody tests. You won't be able to edit your first post so please repost the info with additions.