Jump to content

  • Welcome to Celiac.com!

    You have found your celiac tribe! Join us and ask questions in our forum, share your story, and connect with others.


  • Celiac.com Sponsor (A1):
    Celiac.com Sponsor (A1-M):

  • Get Celiac.com Updates:
    Support Our Content
    eNewsletter
    Donate

How Long To Eat Gluten Before Testing

beachbirdie

Recommended Posts

beachbirdie Contributor
beachbirdie
Posted

When my doctor did a celiac panel a few weeks ago, I had been eating wheat for only a month or so. Is that long enough to give a good result?

I just found out I have a DQ2.2, which is "low risk" for celiac, and my celiac panel showed low enough levels of antibodies to be considered negative. Doc didn't test for DQ1, though I have much northern European heritage (Irish/German)

Just wondering about the time frame.

thanks.

beachbirdie

Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):

Celiac.com Sponsor (A8-M):


cahill Collaborator
cahill
Posted

When my doctor did a celiac panel a few weeks ago, I had been eating wheat for only a month or so. Is that long enough to give a good result?

I just found out I have a DQ2.2, which is "low risk" for celiac, and my celiac panel showed low enough levels of antibodies to be considered negative. Doc didn't test for DQ1, though I have much northern European heritage (Irish/German)

Just wondering about the time frame.

thanks.

beachbirdie

My understanding is that 3 to 4 months of eating the equivalent of 3 to 4 slices of bread a day is needed for a gluten challenge.

Even then some of us test "negative" for celiac's.

This is why it is so very important to be tested before going gluten free. But of course doctors don't tell us that <_<

GFinDC Veteran
GFinDC
Posted

When my doctor did a celiac panel a few weeks ago, I had been eating wheat for only a month or so. Is that long enough to give a good result?

I just found out I have a DQ2.2, which is "low risk" for celiac, and my celiac panel showed low enough levels of antibodies to be considered negative. Doc didn't test for DQ1, though I have much northern European heritage (Irish/German)

Just wondering about the time frame.

thanks.

beachbirdie

I have Irish/German ancestry too, what more evidence do you need? :)

Kidding. I have read something like 6 weeks to three months of eating gluten, but the usual preference seems to be 3 months minimum. And there is still a chance of false negatives. You might want to read up on Enterolabs site. Dr. Fine has paper there suggesting that the blood tests are insensitive because they test the blood for antibodies, while most of the antibodies are actually inside the intestine. Testing the wrong area in other words. Sounds reasonable to me. I haven't tried Enterolab testing myself, but I think his ideas on that part of it sound right.

Hawthorn Rookie
Hawthorn
Posted

My doctor told me two weeks would be enough, after a year of being gluten free (or at the very least gluten light since I wasn't very aware of CC)

My bloods came back neg.

On the uk coeliac charity site, they recommend one gluten containing meal every day for six weeks so it seems that ideas on this varies greatly (as if all of this wasn't confusing enough right? )

Good luck :)

love2travel Mentor
love2travel
Posted

My doctors and dietitian all told me I absolutely must be eating the equivalent of four pieces of bread (at least) per day for three months (I had been off gluten for five months) for accurate results. As I did not have GI symptoms and love consuming gluten I was only too happy to oblige! :P But many would not be and I do not blame them one little bit.

beachbirdie Contributor
beachbirdie
Posted
  • Author

I have Irish/German ancestry too, what more evidence do you need? :)

Kidding. I have read something like 6 weeks to three months of eating gluten, but the usual preference seems to be 3 months minimum. And there is still a chance of false negatives. You might want to read up on Enterolabs site. Dr. Fine has paper there suggesting that the blood tests are insensitive because they test the blood for antibodies, while most of the antibodies are actually inside the intestine. Testing the wrong area in other words. Sounds reasonable to me. I haven't tried Enterolab testing myself, but I think his ideas on that part of it sound right.

:D LOL! I just mention the Irish/German thing because so many say there is a strong connection of celiac and northern European. More reading last night tells me my husband and I probably gave our kids a double gene whammy, two of them have strong reactions to gluten and my husband's Latin heritage probably contributed another gene. :huh:

I'm convinced now that with the one gene that I know about, my other autoimmune disease (Hashimoto's thyroiditis) and our symptoms, we don't need to pursue a diagnosis any further. We need to be gluten-free.

Thanks for your answer!

beachbirdie Contributor
beachbirdie
Posted
  • Author

Many thanks to all of you for your replies!

beachbirdie

Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):

Celiac.com Sponsor (A8-M):


GFinDC Veteran
GFinDC
Posted

:D LOL! I just mention the Irish/German thing because so many say there is a strong connection of celiac and northern European. More reading last night tells me my husband and I probably gave our kids a double gene whammy, two of them have strong reactions to gluten and my husband's Latin heritage probably contributed another gene. :huh:

I'm convinced now that with the one gene that I know about, my other autoimmune disease (Hashimoto's thyroiditis) and our symptoms, we don't need to pursue a diagnosis any further. We need to be gluten-free.

Thanks for your answer!

Oh yeah, Hashimoto's thyroiditis is strongly linked with celiac disease. There are plenty of threads on here by people with Hashimoto's.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Get Celiac.com Updates:
    Support Celiac.com:
    Join eNewsletter
    Donate
  • Celiac.com Sponsor (A17):
    Celiac.com Sponsor (A17):



    Celiac.com Sponsors (A17-M):



  • Recent Activity

    1. knitty kitty
      - knitty kitty replied to Jane02's topic in Gluten-Free Foods, Products, Shopping & Medications
      9

      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      @Jane02, I hear you about the kale and collard greens. I don't do dairy and must eat green leafies, too, to get sufficient calcium. I must be very careful because some calcium supplements are made from ground up crustacean shells. When I was deficient in Vitamin D, I took high doses of Vitamin D to correct the deficiency quickly. This is safe...
    2. Jane02
      - Jane02 replied to Jane02's topic in Gluten-Free Foods, Products, Shopping & Medications
      9

      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      Thank you so much @knitty kitty for this insightful information! I would have never considered fractionated coconut oil to be a potential source of GI upset. I will consider all the info you shared. Very interesting about the Thiamine deficiency. I've tracked daily averages of my intake in a nutrition software. The only nutrient I can't consistently...
    3. knitty kitty
      - knitty kitty replied to Jane02's topic in Gluten-Free Foods, Products, Shopping & Medications
      9

      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      Hello, @Jane02, I take Naturewise D 3. It contains olive oil. Some Vitamin D supplements, like D Drops, are made with fractionated coconut oil which can cause digestive upsets. Fractionated coconut oil is not the same as coconut oil used for cooking. Fractionated coconut oil has been treated for longer shelf life, so it won't go bad in the...
    4. Scott Adams
      0

      Penobscot Bay, Maine: Nurturing Gluten-Free Wellness Retreat with expert celiac dietitian, Melinda Dennis

      until
      Hello! Join me and treat yourself to a four-day, three-night restorative gluten-free retreat in a peaceful, private coastal retreat setting near Penobscot Bay in Maine. Dates: April 10-13, 2026 Enjoy engaging classes...
    5. Scott Adams
      - Scott Adams replied to Jane02's topic in Gluten-Free Foods, Products, Shopping & Medications
      9

      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      I do not know this, but since they are labelled gluten-free, and are not really a product that could easily be contaminated when making them (there would be not flour in the air of such a facility, for example), I don't really see contamination as something to be concerned about for this type of product.
  • Celiac.com Sponsor (A19):

  • Member Statistics

    • Total Members
      133,328
    • Most Online (within 30 mins)
      7,748
    dnamutant
    Newest Member
    dnamutant
    Joined
  • Celiac.com Sponsor (A20):
  • Celiac.com Sponsor (A22):

  • Forum Statistics

    • Total Topics
      121.6k
    • Total Posts
      1m
  • Celiac.com Sponsor (A21):

  • Upcoming Events

  • Posts

    • knitty kitty
      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      By knitty kitty · Posted

      @Jane02, I hear you about the kale and collard greens.  I don't do dairy and must eat green leafies, too, to get sufficient calcium.  I must be very careful because some calcium supplements are made from ground up crustacean shells.  When I was deficient in Vitamin D, I took high doses of Vitamin D to correct the deficiency quickly.  This is safe and nontoxic.  Vitamin D level should be above 70 nmol/L.  Lifeguards and indigenous Pacific Islanders typically have levels between 80-100 nmol/L.   Levels lower than this are based on amount needed to prevent disease like rickets and osteomalacia. We need more thiamine when we're physically ill, emotionally and mentally stressed, and if we exercise like an athlete or laborer.  We need more thiamine if we eat a diet high in simple carbohydrates.  For every 500 kcal of carbohydrates, we need 500-1000 mg more of thiamine to process the carbs into energy.  If there's insufficient thiamine the carbs get stored as fat.  Again, recommended levels set for thiamine are based on minimum amounts needed to prevent disease.  This is often not adequate for optimum health, nor sufficient for people with absorption problems such as Celiac disease.  Gluten free processed foods are not enriched with vitamins like their gluten containing counterparts.  Adding a B Complex and additional thiamine improves health for Celiacs.  Thiamine is safe and nontoxic even in high doses.  Thiamine helps the mitochondria in cells to function.  Thiamine interacts with each of the other B vitamins.  They are all water soluble and easily excreted if not needed. Interesting Reading: Clinical trial: B vitamins improve health in patients with coeliac disease living on a gluten-free diet https://pubmed.ncbi.nlm.nih.gov/19154566/ Safety and effectiveness of vitamin D mega-dose: A systematic review https://pubmed.ncbi.nlm.nih.gov/34857184/ High dose dietary vitamin D allocates surplus calories to muscle and growth instead of fat via modulation of myostatin and leptin signaling https://pubmed.ncbi.nlm.nih.gov/38766160/ Safety of High-Dose Vitamin D Supplementation: Secondary Analysis of a Randomized Controlled Trial https://pubmed.ncbi.nlm.nih.gov/31746327/ Vitamins and Celiac Disease: Beyond Vitamin D https://pmc.ncbi.nlm.nih.gov/articles/PMC11857425/ Investigating the therapeutic potential of tryptophan and vitamin A in modulating immune responses in celiac disease: an experimental study https://pubmed.ncbi.nlm.nih.gov/40178602/ Investigating the Impact of Vitamin A and Amino Acids on Immune Responses in Celiac Disease Patients https://pmc.ncbi.nlm.nih.gov/articles/PMC10814138/
    • Jane02
      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      By Jane02 · Posted

      Thank you so much @knitty kitty for this insightful information! I would have never considered fractionated coconut oil to be a potential source of GI upset. I will consider all the info you shared. Very interesting about the Thiamine deficiency.  I've tracked daily averages of my intake in a nutrition software. The only nutrient I can't consistently meet from my diet is vitamin D. Calcium is a hit and miss as I rely on vegetables, dark leafy greens as a major source, for my calcium intake. I'm able to meet it when I either eat or juice a bundle of kale or collard greens daily haha. My thiamine intake is roughly 120% of my needs, although I do recognize that I may not be absorbing all of these nutrients consistently with intermittent unintentional exposures to gluten.  My vitamin A intake is roughly 900% (~6400 mcg/d) of my needs as I eat a lot of sweet potato, although since it's plant-derived vitamin A (beta-carotene) apparently it's not likely to cause toxicity.  Thanks again! 
    • knitty kitty
      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      By knitty kitty · Posted

      Hello, @Jane02,  I take Naturewise D 3.  It contains olive oil.   Some Vitamin D supplements, like D Drops, are made with fractionated coconut oil which can cause digestive upsets.  Fractionated coconut oil is not the same as coconut oil used for cooking.  Fractionated coconut oil has been treated for longer shelf life, so it won't go bad in the jar, and thus may be irritating to the digestive system. I avoid supplements made with soy because many people with Celiac Disease also react to soy.  Mixed tocopherols, an ingredient in Thornes Vitamin D, may be sourced from soy oil.  Kirkland's has soy on its ingredient list. I avoid things that might contain or be exposed to crustaceans, like Metagenics says on its label.  I have a crustacean/shellfish/fish allergy.  I like Life Extension Bioactive Complete B Complex.  I take additional Thiamine B 1 in the form Benfotiamine which helps the intestines heal, Life Extension MegaBenfotiamine. Thiamine is needed to activate Vitamin D.   Low thiamine can make one feel like they are getting glutened after a meal containing lots of simple carbohydrates like white rice, or processed gluten free foods like cookies and pasta.   It's rare to have a single vitamin deficiency.  The water soluble B Complex vitamins should be supplemented together with additional Thiamine in the form Benfotiamine and Thiamine TTFD (tetrahydrofurfuryl disulfide) to correct subclinical deficiencies that don't show up on blood tests.  These are subclinical deficiencies within organs and tissues.  Blood is a transportation system.  The body will deplete tissues and organs in order to keep a supply of thiamine in the bloodstream going to the brain and heart.   If you're low in Vitamin D, you may well be low in other fat soluble vitamins like Vitamin A and Vitamin K. Have you seen a dietician?
    • Scott Adams
      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      By Scott Adams · Posted

      I do not know this, but since they are labelled gluten-free, and are not really a product that could easily be contaminated when making them (there would be not flour in the air of such a facility, for example), I don't really see contamination as something to be concerned about for this type of product. 
    • trents
      Desperately need a vitamin D supplement. I've reacted to most brands I've tried.

      By trents · Posted

      Contact them.
×
×
  • Create New...

Important Information

NOTICE: This site places This site places cookies on your device (Cookie settings). on your device. Continued use is acceptance of our Terms of Use, and Privacy Policy.