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- Zuma888 replied to Zuma888's topic in Post Diagnosis, Recovery & Treatment of Celiac Disease2Hypothetical question about antibodies
Thank you Scott for your helpful response! Based on this, would you say someone who is on a gluten-free diet - but not strict about cross-contamination and occasional cheating - and tests negative for tTg-IgA while having normal total IgA is not likely to have celiac, even if they have been 'gluten-free' for years? -
- Scott Adams replied to Zuma888's topic in Post Diagnosis, Recovery & Treatment of Celiac Disease2Hypothetical question about antibodies
That’s a really insightful observation about antibody testing and the gluten challenge! You’re absolutely right that antibody levels can remain elevated for months or even years after going gluten-free, especially if there’s ongoing cross-contamination or occasional slip-ups. The immune system doesn’t reset overnight—it can take time for antibodies like tTG-...- 1
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- Betsy Crum replied to Betsy Crum's topic in Related Issues & Disorders4Chest pain from celiac
Thank you for your response! I have considered starting a food diary in the past, I suppose this is as good a time as any to start.- 1
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- Betsy Crum replied to Betsy Crum's topic in Related Issues & Disorders4
Chest pain from celiac
I don't have health insurance so I have never had any testing done. I always thought if I stay away from gluten Ill be fine but I suppose that isn't enough anymore. I will look into getting an allergy test. Thank you for your input! -
- trents replied to Abhita Vij's topic in Gluten-Free Foods, Products, Shopping & Medications2Celiac Brand for Indian grocery
I remember reading an article summarizing testing done by Gluten Free Watchdog on several brands of dried lentils. They were all heavily cross contaminated with wheat and the commentary was to the effect that dried lentils in general were the most heavily cross contaminated product category in their testing data base. So, I would definitely not use any dried...- 1
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Thank you Scott for your helpful response! Based on this, would you say someone who is on a gluten-free diet - but not strict about cross-contamination and occasional cheating - and tests negative for tTg-IgA while having normal total IgA is not likely to have celiac, even if they have been 'gluten-free' for years?
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By Scott Adams · Posted
That’s a really insightful observation about antibody testing and the gluten challenge! You’re absolutely right that antibody levels can remain elevated for months or even years after going gluten-free, especially if there’s ongoing cross-contamination or occasional slip-ups. The immune system doesn’t reset overnight—it can take time for antibodies like tTG-IgA to normalize, which is why many doctors recommend waiting at least 6–12 months of strict gluten-free eating before retesting. For someone who’s been gluten-free for less than two years or hasn’t been meticulous about avoiding cross-contact, there’s absolutely a chance they’d still test positive, since even small amounts of gluten can keep antibodies elevated. This is partly why the gluten challenge (where you eat gluten before testing) exists—it’s designed to provoke a measurable immune response in people who’ve been gluten-free long enough for antibodies to drop. But you raise a great point: the challenge isn’t perfect, and false negatives can happen if the timing or amount of gluten isn’t sufficient to trigger a strong antibody response. This is why diagnosis often combines antibody tests with other tools like genetic testing or endoscopy. Your question highlights just how nuanced celiac testing can be! For people with celiac disease hidden gluten in their diets is the main cause of elevated Tissue Transglutaminase IgA Antibodies (tTG-IgA), but there are other conditions, including cow's milk/casein intolerance, that can also cause this, and here is an article about the other possible causes: -
By Betsy Crum · Posted
Thank you for your response! I have considered starting a food diary in the past, I suppose this is as good a time as any to start. -
By Betsy Crum · Posted
I don't have health insurance so I have never had any testing done. I always thought if I stay away from gluten Ill be fine but I suppose that isn't enough anymore. I will look into getting an allergy test. Thank you for your input! -
I remember reading an article summarizing testing done by Gluten Free Watchdog on several brands of dried lentils. They were all heavily cross contaminated with wheat and the commentary was to the effect that dried lentils in general were the most heavily cross contaminated product category in their testing data base. So, I would definitely not use any dried lentil product that was not tested to be Gluten Free (<20ppm of gluten) or Certified Gluten Free (<10ppm of gluten).
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