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Testing After Gluten Free?


WhenDee

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WhenDee Rookie

I'm sure this has been asked before, but apparently my searching skills aren't very good.

We have to have my daughter tested, because she may have silent celiac's (nearly silent), and I was thinking of also being officially tested. I can't do a challenge because I would get so sick, but it would also be nice to have an official diagnosis after so many years of being accused of hypochondria. Even my husband, who has taken me to the hospital so many times and has seen all my problems go away is only 90 percent convinced it wasn't all mental

I've been gluten free for several months. Would an antibodies test turn up negative for me? Would I have to challenge for an accurate result?

I suppose if my daughter turns up positive after I noticed she has similar problems to what I had when I was very young (digestive problems not started yet), it would be pretty obvious, right?

Just wondering if it would be worth it, or would show a false negative after all this time gluten free....


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ravenwoodglass Mentor

You would be a false negative if you have been off gluten. You could do a gluten challenge eating at least 3 to 4 slices of bread for 3 months and then be tested but you could still have a false negative. Be aware that the false negative rate for children is even higher than for adults so do a strict trial for your child after all testing is done if you suspect celiac.

Mack the Knife Explorer

If you don't have to pay for the testing and you have only been gluten free for a few months - then you should probably get tested.

I have been strictly gluten free for 18 months and I'm still testing positive. My GI was not worried for the first year as he says it's not uncommon for it to take a while for some people's antibodies to return to normal. He's not so happy with me now and is sending me off for another biopsy.

So I do think it is worth getting yourself tested just in case. A negative result won't tell you anything but there is still a chance you could test positive.

WhenDee Rookie

Hmmmm.... these are interesting replies. I have a "yay" and a "nay".

It's very frustrating to be somewhere where the medical care is so lacking, that is for sure. Biopsy is out here, because it isn't uncommon for people to just die from such ordinary procedures here.

My daughter needs to be tested, so I may go ahead & do it anyway, just to see. If she is positive, that will be a pretty big indicator for me.

Edited because: I replied wrong thing to wrong thread, sorry.

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    • Scott Adams
      This is a very common question, and the most important thing to know is that no, Guinness is not considered safe for individuals with coeliac disease. While it's fascinating to hear anecdotes from other coeliacs who can drink it without immediate issues, this is a risky exception rather than the rule. The core issue is that Guinness is brewed from barley, which contains gluten, and the standard brewing process does not remove the gluten protein to a level safe for coeliacs (below 20ppm). For someone like you who experiences dermatitis herpetiformis, the reaction is particularly significant. DH is triggered by gluten ingestion, even without immediate gastrointestinal symptoms. So, while you may not feel an instant stomach upset, drinking a gluten-containing beer like Guinness could very well provoke a flare-up of your skin condition days later. It would be a gamble with a potentially uncomfortable and long-lasting consequence. Fortunately, there are excellent, certified gluten-free stouts available now that can provide a safe and satisfying alternative without the risk.
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      Interestingly, this thought occurred to me last night. I did find that there are studies investigating whether vitamin D deficiency can actually trigger celiac disease.  Source: National Institutes of Health https://pmc.ncbi.nlm.nih.gov/articles/PMC7231074/ 
    • Butch68
      Before being diagnosed coeliac I used to love Guinness. Being made from barley it should be something a coeliac shouldn’t drink. But taking to another coeliac and they can drink it with no ill effects and have heard of others who can drink it too.  is this everyone’s experience?  Can I drink it?  I get dermatitis herpetiformis and don’t get instant reactions to gluten so can’t try it to see for myself. 
    • trents
      NCGS does not cause damage to the small bowel villi so, if indeed you were not skimping on gluten when you had the antibody blood testing done, it is likely you have celiac disease.
    • Scott Adams
      I will assume you did the gluten challenge properly and were eating a lot of gluten daily for 6-8 weeks before your test, but if not, that could be the issue. You can still have celiac disease with negative blood test results, although it's not as common:  Clinical and genetic profile of patients with seronegative coeliac disease: the natural history and response to gluten-free diet: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5606118/  Seronegative Celiac Disease - A Challenging Case: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9441776/  Enteropathies with villous atrophy but negative coeliac serology in adults: current issues: https://pubmed.ncbi.nlm.nih.gov/34764141/  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.
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