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Raising you vitamin D will increase absorption of calcium automatically without supplementation of calcium.  A high PTH can be caused by low D causing poor calcium absorption; not insuffient calcium intake.  With low D your body is not absorbing calcium from your food so it steals it from your bones.  Heart has priority over bone. I've been taking 10,000 IU D3 a day since 2015.  My doctor says to continue. To fix my lactose intolerance, lots of lactobacillus from yogurts, and brine fermented pickles and saurkraut and olives.  We lose much of our ability to make lactase endogenosly with maturity but a healthy colony of lactobacillus in our gut excretes lactase in exchange for room and board. The milk protein in grass fed milk does not bother me. It tastes like the milk I grew up on.  If I drink commercial milk I get heartburn at night. Some experts estimate that 90% of us do not eat Adequite Intake of choline.  Beef and eggs are the principle source. Iodine deficiency is a growing concern.  I take 600 mcg a day of Liquid Iodine.  It and NAC have accelerated my healing all over.  Virtually blind in my right eye after starting antihypertensive medication and vision is slowly coming back.  I had to cut out starches because they drove my glucose up into the 200+ range.  I replaced them with Red Bull for the glucose intake with the vitamins, minerals and Taurine needed to process through the mitochodria Krebs Cycle to create ATP.  Went from A1c 13 down to 7.9.  Work in progress. Also take B1,B2,B3,B5,B6. Liquid Iodine, Phosphatidyl Choline, Q10, Selenium, D and DHEA.     Choline supplemented as phosphatidylcholine decreases fasting and postmethionine-loading plasma homocysteine concentrations in healthy men +    

@catnapt, Wheat germ has very little gluten in it.  Gluten is  the carbohydrate storage protein, what the flour is made from, the fluffy part.  Just like with beans, there's the baby plant that will germinate  ("germ"-inate) if sprouted, and the bean part is the carbohydrate storage protein.   Wheat germ is the baby plant inside a kernel of wheat, and bran is the protective covering of the kernel.   Little to no gluten there.   Large amounts of lectins are in wheat germ and can cause digestive upsets, but not enough Gluten to provoke antibody production in the small intestines. Luckily you still have time to do a proper gluten challenge (10 grams of gluten per day for a minimum of two weeks) before your next appointment when you can be retested.    

Hello, @asaT, I'm curious to know whether you are taking other B vitamins like Thiamine B1 and Niacin B3.  Malabsorption in Celiac disease affects all the water soluble B vitamins and Vitamin C.  Thiamine and Niacin are required to produce energy for all the homocysteine lowering reactions provided by Folate, Cobalamine and Pyridoxine.   Weight gain with a voracious appetite is something I experienced while malnourished.  It's symptomatic of Thiamine B1 deficiency.   Conversely, some people with thiamine deficiency lose their appetite altogether, and suffer from anorexia.  At different periods on my lifelong journey, I suffered this, too.   When the body doesn't have sufficient thiamine to turn food, especially carbohydrates, into energy (for growth and repair), the body rations what little thiamine it has available, and turns the carbs into fat, and stores it mostly in the abdomen.  Consuming a high carbohydrate diet requires additional thiamine to process the carbs into energy.  Simple carbohydrates (sugar, white rice, etc.) don't contain thiamine, so the body easily depletes its stores of Thiamine processing the carbs into fat.  The digestive system communicates with the brain to keep eating in order to consume more thiamine and other nutrients it's not absorbing.   One can have a subclinical thiamine insufficiency for years.  A twenty percent increase in dietary thiamine causes an eighty percent increase in brain function, so the symptoms can wax and wane mysteriously.  Symptoms of Thiamine insufficiency include stunted growth, chronic fatigue, and Gastrointestinal Beriberi (diarrhea, abdominal pain), heart attack, Alzheimer's, stroke, and cancer.   Thiamine improves bone turnover.  Thiamine insufficiency can also affect the thyroid.  The thyroid is important in bone metabolism.  The thyroid also influences hormones, like estrogen and progesterone, and menopause.  Vitamin D, at optimal levels, can act as a hormone and can influence the thyroid, as well as being important to bone health, and regulating the immune system.  Vitamin A is important to bone health, too, and is necessary for intestinal health, as well.   I don't do dairy because I react to Casein, the protein in dairy that resembles gluten and causes a reaction the same as if I'd been exposed to gluten, including high tTg IgA.  I found adding mineral water containing calcium and other minerals helpful in increasing my calcium intake.   Malabsorption of Celiac affects all the vitamins and minerals.  I do hope you'll talk to your doctor and dietician about supplementing all eight B vitamins and the four fat soluble vitamins because they all work together interconnectedly.  

Hi Jane: You may want to try the D3 I now take. I have reactions to fillers and many additives. Sports Research, it is based in the USA and I have had no bad reactions with this brand. The D3 does have coconut oil but it is non GMO, it is Gluten free, Soy free, Soybean free and Safflower oil free.  I have a cupboard full of supplements that did not agree with me -  I just keep trying and have finally settled on Sports Research. I take NAKA Women's Multi full spectrum, and have not felt sick after taking 2 capsules per day -  it is a Canadian company. I buy both from Amazon. I wish you well in your searching, I know how discouraging it all is. Florence.  

highly unlikely  NOTHING and I mean NOTHING else has ever caused me these kinds of symptoms I have no problem with dates, they are a large part of my diet In fact, I eat a very high fiber, very high vegetable and bean diet and have for many years now. It's considered a whole foods plant based or plant forward diet (I do now eat some lean ground turkey but not much) I was off dairy for years but recently had to add back plain yogurt to meet calcium needs that I am not allowed to get from supplements (I have not had any problem with the yogurt)   I eat almost no processed foods. I don't eat out. almost everything I eat, I cook myself I am going to keep a food diary but to be honest, I already know that it's wheat products and also barley that are the problem, which is why I gradually stopped eating and buying them. When I was eating them, like back in early 2024, when I was in the middle of moving and ate out (always had bread or toast or rolls or a sub or pizza) I felt terrible but at that time was so busy and exhausted that I never stopped to think it was the food. Once I was in my new place, I continued to have bread from time to time and had such horrible joint pain that I was preparing for 2 total knee replacements as well as one hip! The surgery could not go forward as I was (and still am) actively losing calcium from my bones. That problem has yet to be properly diagnosed and treated   anyway over time I realized that I felt better when I stopped eating bread. Back at least 3 yrs ago I noticed that regular pasta made me sick so I switched to brown rice pasta and even though it costs a lot more, I really like it.   so gradually I just stopped buying and eating foods with gluten. I stopped getting raisin bran when I was constipated because it made me bloated and it didn't help the constipation any more (used to be a sure bet that it would in the past)   I made cookies and brownies using beans and rolled oats and dates and tahini and I LOVE them and have zero issues eating those I eat 1 or more cans of beans per day easily can eat a pound of broccoli - no problem! Brussels sprouts the same thing.   so yeh it's bread and related foods that are clearly the problem  there is zero doubt in my mind    

Thank you for your post, @nanny marley It is interesting what you say about 'It's OK not to sleep'. Worrying about sleeping only makes it much harder to sleep.  One of my relatives is an insomniac and I am sure that is part of the problem.  Whereas I once had a neighbour who, if she couldn't sleep, would simply get up again, make a cup of tea, read, do a sudoku or some other small task, and then go back to bed when she felt sleepy again.  I can't think it did her any harm - she lived  well into her nineties. Last week I decided to try a Floradix Magnesium supplement which seems to be helping me to sleep better.  It is a liquid magnesium supplement, so easy to take.  It is gluten free (unlike the Floradix iron supplement).  Might be worth a try.        

It could be a fructan intolerance? How do you do with dates?  https://www.dietvsdisease.org/sorry-your-gluten-sensitivity-is-actually-a-fructan-intolerance/

Thank’s for addressing the issue of mushrooms.  I was under the impression that only wild mushrooms were gluten-free.  Have been avoiding cultivated mushrooms for years. Also, the issue of smoked food was informative.  In France last year, where there is hardly any prepared take-out food that is gluten-free, I tried smoked chicken.  Major mistake!

my IGG is 815 IGA 203  but tTG-Iga is   <0.4!!!!!!!!!!!!!   oh my god- 13 days of agony and the test is negative?  I don't even know what to do next. There zero doubt in my mind that I have an issue with wheat and probably more so with gluten as symptoms are dramatically worse the more gluten a product has   I am going to write up the history of my issues for the past few years and start a food/symptom diary to bring with me to the GI doctor in March.   I googled like crazy to try to find out what other things might cause these symptoms and the only thing that truly fits besides celiac is NCGS   but I guess there are some other things I maybe should be tested for ...? like SIBO?   I will continue to eliminate any foods that cause me distress (as I have been doing for the past couple of years) and try to keep a record. Can anyone recommend an app or some form or something that would simplify this? I have a very full and busy life and taking the time to write out each symptom name in full would be tedious and time consuming- some sort of page with columns to check off would be ideal. I am not at all tech savvy so that's not something I can make myself ... I'm hoping there's some thing out there that I can just download and print out   do I give up on testing for celiac with such a low number? I am 70 yrs old I have been almost completely off gluten for the most part for about 2 yrs. I had a meal of vital wheat gluten vegan roast,  rolls and stuffing made from home baked bread and an apple pie- and had the worst pain and gas and bloating and odd rumblings in my gut etc - almost went to the ER it was so bad. I was thinking, since I'm spilling a lot of calcium in my urine, that perhaps this was a kidney stone (never had one before but there's always that first time, right?)    Saw my endo on Jan 20th and after hearing the story about the symptoms from eating that holiday meal, she suggested doing a gluten challenge. She said 2 weeks was fine- she said stopping it in the middle if symptoms got bad was fine- In the meantime I'd read that 2 weeks was not enough- called and argued with the nurse about this, but ultimately decided to stop the gluten on the 13th day and get the test done because I was in too much pain and almost suicidal and knew I could not continue.   so.............. that's where I am now I have had no bread since Sunday. I did have some rolled oats today and had some gas and bloating afterwards I did have some wheat germ in a smoothie on Tuesday and had a stomach ache later that night.   but overall I feel so much better! all the joint pain is gone! the nausea is gone. The stomach pain and gas and bloating are going away. Still a bit gassy but no more of that horrible odor. wow, that would clear a room if I was out in public!  I see a GI nurse March 4th  I hope she'll be able to help sort this out! can you think of what my next steps might be?

Thanks for the reply. 

What you’re describing is actually very common, and unfortunately the timing of the biopsy likely explains the confusion. Yes, it is absolutely possible for the small intestine to heal enough in three months on a strict gluten-free diet to produce a normal or near-normal biopsy, especially when damage was mild to begin with. In contrast, celiac antibodies can stay elevated for many months or even years after gluten removal, so persistently high antibody levels alongside the celiac genes and clear nutrient deficiencies strongly point to celiac disease, even if you don’t feel symptoms. Many people with celiac are asymptomatic but still develop iron and vitamin deficiencies and silent intestinal damage. The lack of immediate symptoms makes it harder emotionally, but it doesn’t mean gluten isn’t harming you. Most specialists would consider this a case of celiac disease with a false-negative biopsy due to early healing rather than “something else,” and staying consistently gluten-free is what protects you long-term—even when your body doesn’t protest right away.

Yes, I meant if you had celiac disease but went gluten-free before screening, your results would end up false-negative. As @trents mentioned, this can also happen when a total IGA test isn't done.

I found at Disney springs and Disney they have specialist that when told about dietary restrictions they come and talk to you ,explain cross contamination measures tsken and work with you on choices. Its the one place I dont worry once I've explained I have celiac disease.  Thier gluten free options are awesome.

Have you tried Pure Encapsulations supplements? This is a brand my doctor recommends for me. I have no issues with this brand.

plant sources of calcium, such as spinach, have calcium bound to oxalates, which is not good. best source of calcium is unfortunately dairy, do you tolerate dairy? fermented dairy like kefir is good and or a little hard cheese. i do eat dairy, i can only take so much dietary restriction and gluten is hard enough! but i guess some people do have bad reactions to it, so different for everyone.  

i take b12, folate, b2, b6, glycine, Nac, zinc, vk2 mk4, magnesium, coq10, pqq, tmg, creatine, omega 3, molybdnem (sp) and just started vit d. quite a list i know.  I have high homocysteine (last checked it was 19, but is always high and i finally decided to do something about it) and very low vitamin d, 10. have been opposed to this supp in the past, but going to try it at 5k units a day. having a pth test on friday, which is suspect will be high. my homocysteine has come down to around 9 with 3 weeks of these supplements and expect it to go down further. i also started on estrogen/progesterone. I have osteoporosis too, so that is why the hormones.  anyway, i think all celiacs should have homocysteine checked and treated if needed (easy enough with b vit, tmg). homocysteine very bad thing to be high for a whole host of reasons. all the bad ones, heart attack , stroke, alzi, cancer..... one of the most annoying things about celiacs (and there are so many!) is the weight gain. i guess i stayed thin all those years being undiagnosed because i was under absorbing everything including calories. going gluten-free and the weight gain has been terrible, 30#, but i'm sure a lot more went into that (hip replacement - and years of hip pain leading to inactivity when i was previously very active, probably all related to celiacs, menopause) yada yada. i seemed to lose appetite control, like there was low glp, or leptin or whatever all those hormones are that tell you that you are full and to stop eating. my appetite is immense and i'm never full. i guess decades or more ( i think i have had celiacs since at least my teens - was hospitalized for abdominal pain and diarrhea for which spastic colon was eventually diagnosed and had many episodes of diarrhea/abdominal pain through my 20's. but that symptom seemed to go away and i related it to dairy much more so than gluten. Also my growth was stunted, i'm the only shorty in my family. anyway, decades of malabsorption and maldigestion led to constant hunger, at least thats my theory. then when i started absorbing normally, wham!! FAT!!!    

Great advise there I agree with the aniexty part, and the aura migraine has I suffer both, I've also read some great books that have helped I'm going too look the one you mentioned up too thankyou for that, I find a camomile tea just a small one and a gentle wind down before bed has helped me too, I suffer from restless leg syndrome and nerve pain hence I don't always sleep well at the best of times , racing mind catches up I have decorated my whole house in one night in my mind before 🤣 diet changes mindset really help , although I have to say it never just disappears, I find once I came to terms with who I am I managed a lot better  , a misconception is for many to change , that means to heal but that's not always the case , understanding and finding your coping mechanisms are vital tools , it's more productive to find that because there is no failure then no pressure to become something else , it's ok to be sad it's ok to not sleep , it's ok to worry , just try to see it has a journey not a task 🤗

I agree there I've tryed this myself to prove I can't eat gluten or lactose and it sets me back for about a month till I have to go back to being very strict to settle again 

You may also need to supplement with B12 as this vitamin is also involved in iron assimilation and is often deficient in long-term undiagnosed celiac disease.

@par18, no, Scott's use of the term "false negative" is intentional and appropriate. The "total IGA" test is not a test used to diagnose celiac disease per se. The IGA immune spectrum response encompasses more than just celiac disease. So, "total IGA" refers to the whole pie, not just the celiac response part of it. But if the whole pie is deficient, the spectrum of components making it up will likely be also, including the celiac disease response spectrum. In other words, IGA deficiency may produce a tTG-IGA score that is negative that might have been positive had there not been IGA deficiency. So, the tTG-IGA negative score may be "false", i.e, inaccurate, aka, not to be trusted.

This may be the problem. Every time you eat gluten it is like giving a booster shot to your immune system, telling it to react and produce antibodies again.

Scott, I am mostly asymptomatic. I was diagnosed based on high antibodies, low ferritin (3) and low vitamin D (10). I wasn't able to get in for the biopsy until 3 months after the blood test came back. I was supposed to keep eating gluten during this time. Well why would I continue doing something that I know to be harmful for 3 more months to just get this test? So I did quit gluten and had the biopsy. It was negative for celiacs. I continued gluten free with iron supps and my ferritin came back up to a reasonable, but not great level of around 30-35.  Could there be something else going on? Is there any reason why my antibodies would be high (>80) with a negative biopsy? could me intestines have healed that quickly (3 months)?  I'm having a hard time staying gluten free because I am asymptomatic and i'm wondering about that biopsy. I do have the celiacs gene, and all of the antibody tests have always come back high. I recently had them tested again. Still very high. I am gluten free mostly, but not totally. I will occasionally eat something with gluten, but try to keep to a minimum. It's really hard when the immediate consequences are nil.  with high antibodies, the gene, but a negative biopsy (after 3 months strict gluten-free), do i really have celiacs? please say no. lol. i think i know the answer.  Asa

I have had a long year of testing unfortunately still not diagnosed , although one thing they definitely agree I'm gluten intolerant, the thing for me I have severe back troubles they wouldnt perform the tests and I couldn't have a full MRI because I'm allergic to the solution , we tryed believe me  I tryed lol , another was to have another blood test after consuming gluten but it makes me so bad I tryed it for only a week, and because I have a trapped sciatic nerve when I get bad bowels it sets that off terribly so I just take it on myself now , I eat a gluten free diet , I'm the best I've ever been , and if I slip I know it so for me i have my own diagnosis  and I act accordingly, sometimes it's not so straight forward for some of us , for the first time in years I can plan to go out , and I have been absorbing my food better , running to the toilet has become occasionally now instead of all the time , i hope you find a solution 🤗

I was undiagnosed for decades. My ferritin when checked in 2003 was 3. It never went above 10 in the next 20 years. I was just told to "take iron". I finally requested the TTgIgA test in 2023 when I was well and truly done with the chronic fatigue and feeling awful. My numbers were off the charts on the whole panel.  they offered me an endoscopic biopsy 3 months later, but that i would need to continue eating gluten for it to be accurate. so i quit eating gluten and my intestine had healed by the time i had the biopsy (i'm guessing??). Why else would my TTgIgA be so high if not celiacs? Anyway, your ferritin will rise as your intestine heals and take HEME iron (brand 4 arrows). I took 20mg of this with vitamin c and lactoferrin and my ferritin went up, now sits around 35.  you will feel dramatically better getting your ferritin up, and you can do it orally with the right supplements. I wouldn't get an infusion, you will get as good or better results taking heme iron/vc/lf.  

Scott, I agree with everything you said except the term "false negative". It should be a "true negative" just plain negative. I actually looked up true/false negative/positive as it pertains to testing. The term "false negative" would be correct if you are positive (have anti-bodies) and the test did not pick them up. That would be a problem with the "test" itself. If you were gluten-free and got tested, you more than likely would test "true" negative or just negative. This means that the gluten-free diet is working and no anti-bodies should be present. I know it sounds confusing and if you don't agree feel free to respond. 

I realized it is actually important to get an official diagnosis because then insurance can cover bone density testing and other lab work to see if any further damage has been done because of it. Also, if hospitalized for whatever reason, I have the right to gluten-free food if I am officially celiac. I guess it gives me some legal protections. Plus, I have 4 kids, and I really want to know. If I really do have it then they may have increased risk. 

Been off this forum for years. Is it that important that you get an official diagnosis of something? It appears like you had a trigger (wheat, gluten, whatever) and removing it has resolved your symptom. I can't speak for you, but I had known what my trigger was (gluten) years before my diagnosis I would just stay gluten-free and get on with my symptom free condition. I was diagnosed over 20 years ago and have been symptom free only excluding wheat, rye and barley. I tolerate all naturally gluten free whole foods including things like beans which actually helps to form the stools. 

No coincidence. Recent revisions to gluten challenge guidelines call for the daily consumption of at least 10g of gluten (about the amount in 4-6 slices of wheat bread) for a minimum of 3 weeks. If possible, I would extend that two weeks to ensure valid testing.

Thank you both for the replies. I decided to bring back gluten so I can do the blood test. Today is Day #2 of the Challenge. Yesterday I had about 3 slices of whole wheat bread and I woke up with urgent diarrhea this morning. It was orange, sandy and had the distinctive smell that I did not have when I was briefly gluten free. I don't know if it's a coincidence, but the brain fog is back and I feel very tired.   

@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/

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! 

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?

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. 

Contact them.

Thanks @Scott Adams. Do you know if Kirkland Signature supplements share facility and production lines with other products containing gluten?  I'm worried that I'll react to this brand just like I did with other gluten-free labelled supplement brands. 

Many thanks!

This is a really common area of confusion. Most natural cheeses (cheddar, Swiss, mozzarella, Parmesan, brie, camembert, and most blue cheeses) are inherently gluten-free, and you’re right that the molds used today are typically grown on gluten-free media. The bigger risks tend to come from processed cheeses: shredded cheese (anti-caking agents), cheese spreads, beer-washed rinds, smoke-flavored cheeses, and anything with added seasonings or “natural flavors,” where cross-contact can happen. As for yeast, you’re also correct — yeast itself is gluten-free. The issue is the source: brewer’s yeast and yeast extracts can be derived from barley unless labeled gluten-free, while baker’s yeast is generally safe. When in doubt, sticking with whole, unprocessed cheeses and products specifically labeled gluten-free is the safest approach, especially if you’re highly sensitive.

Kirkland brand (at Costco) is gluten-free and is 2,000 IU.

Thanks a lot for your response! Can you maybe specify which kind of cheeses I should be cautious about? Camembert/Brie and blue cheeses (the molds of which are nowadays mostly grown on gluten-free media, though, so I've read, right?) or other ones as well? Also, I was under the impression that yeast is generally gluten-free if not declared otherwise. Is that false?

I agree with @trents, but thank you for bringing this up here!

Hi @trents, yes I've had my levels checked in Dec 2025 which revealed vit D deficiency. I considered eggs although they only contain about 45 IU vitamin D/egg. I need 2000 IU vitamin D for maintenance as per my doctor. Although now, I likely need way more than that to treat the deficiency. My doctor has yet to advise me on dosing for deficiency. I've also considered cod liver oil, although again, if it's processed in a facility that has gluten, especially on flour form, I worried to test it, even if they have protocols in place to mitigate cross-contamination with gluten.

Welcome to celiac.com, @Jane02! Have you had your serum D levels checked for deficiency/sufficiency? What about cod liver oil? Egg yolks can also be a good source of vitamin D.

Hello, I'm very discouraged. I've been trying to find a safe vitamin mineral supplement brand for months and am tired of testing one after the other and experiencing my typical 'glutening' reactions. I'm really feeling the nutritional deficiencies set in. I'm doing the best I can to get these nutrients from my food, although it's impossible for me to intake enough vitamin D as I can't have dairy and have insufficient sun exposure in the northern hemisphere. I've tried B Complex from Country Life (certified gluten-free) - horrible reaction. I've tried Metagenics vitamin D tab (certified glute-free) - bad reaction. I've tried liquid vitamin D Thorne and D Drops - reactions were mild since I tried a drop of a drop. I understand there could be other things I'm reacting to in my diet, although my diet/intake is pretty consistent with minimal variables so I do think it's something in these supplements. I understand I could be reacting to the active ingredient vitamin/mineral itself or even the filler ingredients. I tried the vitamin D drops since the only filler ingredient is coconut oil, in some brands, which I know I can tolerate really well on its own - I cook with coconut oil frequently and have no 'glutening' reactions at all. Perhaps I'm reacting to the vitamin D itself, although I eat fatty fish every few days, an entire fillet with no 'glutening' reactions, which contains anywhere between 400-600 IU per fillet so I shouldn't be sensitive to vitamin D. All this to say, I'm desperately looking for at least a safe vitamin D supplement. Does anyone know of a safe vitamin D supplement brand? I'd love to know if there are any supplement brands that have absolutely no gluten (especially in flour form) in their facilities. I've heard of Kirkman having no grains in their facility - I may try this brand. Has anyone reacted to this brand?   

Welcome to the celiac.com communiuty, @Matthias! Yes, we have been aware that this can be an issue with mushrooms but as long as they are rinsed thoroughly it should not be a problem since the mushrooms don't actually incorporate the gluten into their cellular structure. For the same reason, one needs to be careful when buying aged cheeses and products containing yeast because of the fact that they are sometimes cultured on gluten-containing substrate.

The one kind of food I had been buying and eating without any worry for hidden gluten were unprocessed veggies. Well, yesterday I discovered yet another pitfall: cultivated mushrooms. I tried some new ones, Shimeji to be precise (used in many asian soup and rice dishes). Later, at home, I was taking a closer look at the product: the mushrooms were growing from a visible layer of shredded cereals that had not been removed. After a quick web research I learned that these mushrooms are commonly cultivated on a cereal-based medium like wheat bran. I hope that info his helpful to someone.

I might suggest you consider buckwheat groats. https://www.amazon.com/Anthonys-Organic-Hulled-Buckwheat-Groats/dp/B0D15QDVW7/ref=sr_1_4_pp?crid=GOFG11A8ZUMU&dib=eyJ2IjoiMSJ9.bk-hCrXgLpHqKS8QJnfKJLKbKzm2BS9tIFv3P9HjJ5swL1-02C3V819UZ845_kAwnxTUM8Qa69hKl0DfHAucO827k_rh7ZclIOPtAA9KjvEEYtaeUV06FJQyCoi5dwcfXRt8dx3cJ6ctEn2VIPaaFd0nOye2TkASgSRtdtKgvXEEXknFVYURBjXen1Nc7EtAlJyJbU8EhB89ElCGFPRavEQkTFHv9V2Zh1EMAPRno7UajBpLCQ-1JfC5jKUyzfgsf7jN5L6yfZSgjhnwEbg6KKwWrKeghga8W_CAhEEw9N0.eDBrhYWsjgEFud6ZE03iun0-AEaGfNS1q4ILLjZz7Fs&dib_tag=se&keywords=buckwheat%2Bgroats&qid=1769980587&s=grocery&sprefix=buchwheat%2Bgroats%2Cgrocery%2C249&sr=1-4&th=1 Takes about 10 minutes to cook. Incidentally, I don't like quinoa either. Reminds me and smells to me like wet grass seed. When its not washed before cooking it makes me ill because of saponins in the seed coat. Yes, it can be difficult to get much dietary calcium without dairy. But in many cases, it's not the amount of calcium in the diet that is the problem but the poor uptake of it. And too much calcium supplementation can interfere with the absorption of vitamins and minerals in general because it raises gut pH.

What you’re describing really does not read like typical IBS-D. The dramatic, rapid normalization of stool frequency and form after removing wheat, along with improved tolerance of legumes and plant foods, is a classic pattern seen in gluten-driven disease rather than functional IBS. IBS usually worsens with fiber and beans, not improves. The fact that you carry HLA-DQ2.2 means celiac disease is absolutely possible, even if it’s less common than DQ2.5, and many people with DQ2.2 present later and are under-diagnosed. Your hesitation to reintroduce gluten is completely understandable — quality of life matters — and many people in your position choose to remain strictly gluten-free and treat it as medically necessary even without formal biopsy confirmation. If and when you’re ready, a physician can help you weigh options like limited gluten challenge, serology history, or documentation as “probable celiac.” What’s clear is that this wasn’t just random IBS — you identified the trigger, and your body has been very consistent in its response.

Here are some results from a search: Top Liquid Multivitamin Picks for Celiac Needs MaryRuth's Liquid Morning Multivitamin Essentials+ – Excellent daily choice with a broad vitamin/mineral profile, easy to absorb, gluten-free, vegan, and great overall value. MaryRuth's Liquid Morning Multivitamin – Classic, well-reviewed gluten-free liquid multivitamin with essential nutrients in a readily absorbable form. MaryRuth's Morning Multivitamin w/ Hair Growth – Adds beauty-supporting ingredients (biotin, B vitamins), also gluten-free and easy to take. New Chapter Liquid Multivitamin and New Chapter Liquid Multivitamin Orange Mango – Fermented liquid form with extra nutrients and good tolerability if you prefer a whole-food-based formula. Nature's Plus Source Of Life Gold Liquid – Premium option with a broad spectrum of vitamins and plant-based nutrients. Floradix Epresat Adult Liquid Multivitamin – Highly rated gluten-free German-made liquid, good choice if taste and natural ingredients matter. NOW Foods Liquid Multi Tropical Orange – Budget-friendly liquid multivitamin with solid nutrient coverage.

oh that's interesting... it's hard to say for sure but it has *seemed* like oats might be causing me some vague issues in the past few months. It's odd that I never really connect specific symptoms to foods, it's more of an all over feeling of unwellness after  eating them.  If it happens a few times after eating the same foods- I cut back or avoid them. for this reason I avoid dairy and eggs.  So far this has worked well for me.  oh, I have some of Bob's Red Mill Mighty Tasty Hot cereal and I love it! it's hard to find but I will be looking for more.  for the next few weeks I'm going to be concentrating on whole fresh fruits and veggies and beans and nuts and seeds. I'll have to find out if grains are truly necessary in our diet. I buy brown rice pasta but only eat that maybe once a month at most. Never liked quinoa. And all the other exotic sounding grains seem to be time consuming to prepare. Something to look at later. I love beans and to me they provide the heft and calories that make me feel full for a lot longer than a big bowl of broccoli or other veggies. I can't even tolerate the plant milks right now.  I have reached out to the endo for guidance regarding calcium intake - she wants me to consume 1000mgs from food daily and I'm not able to get to more than 600mgs right now.  not supposed to use a supplement until after my next round of testing for hyperparathyroidism.   thanks again- you seem to know quite a bit about celiac.  

Welcome to the celiac.com community, @SilkieFairy! You could also have NCGS (Non Celiac Gluten Sensitivity) as opposed to celiac disease. They share many of the same symptoms, especially the GI ones. There is no test for NCGS. Celiac disease must first be ruled out.

Under the circumstances, your decision to have the testing done on day 14 sounds very reasonable. But I think by now you know for certain that you either have celiac disease or NCGS and either way you absolutely need to eliminate gluten from your diet. I don't think you have to have an official diagnosis of celiac disease to leverage gluten free service in hospitals or institutional care and I'm guessing your physician would be willing to grant you a diagnosis of gluten sensitivity (NCGS) even if your celiac testing comes up negative. Also, you need to be aware that oats (even gluten free oats) is a common cross reactor in the celiac community. Oat protein (avenin) is similar to gluten. You might want to look at some other gluten free hot  breakfast cereal alternatives.

After the birth of my daughter nearly 6 years ago, my stools changed. They became thin if they happened to be solid (which was rare) but most of the time it was Bristol #6 (very loose and 6-8x a day). I was on various medications and put it down to that. A few years later I went on this strict "fruit and meat" diet where I just ate meat, fruit, and squash vegetables. I noticed my stools were suddenly formed, if a bit narrow. I knew then that the diarrhea was probably food related not medication related. I tried following the fodmap diet but honestly it was just too complicated, I just lived with pooping 8x a day and wondering how I'd ever get and keep a job once my children were in school.  This past December I got my yearly bloodwork and my triglycerides were high. I looked into Dr. William Davis (wheat belly author) and he recommended going off wheat and other grains. This is the first time in my life I was reading labels to make sure there was no wheat. Within 2 weeks, not only were my stools formed and firm but I was only pooping twice a day, beautiful formed Bristol #4.  Dr. Davis allows some legumes, so I went ahead and added red lentils and beans. Nervous that the diarrhea would come back if I had IBS-D. Not only did it not come back, it just made my stools even bigger and beautiful. Still formed just with a lot more width and bulk. I've also been eating a lot of plant food like tofu, mushrooms, bell peppers, hummus etc which I thought was the cause of my diarrhea before and still, my stools are formed. In January I ran a genetics test because I knew you had to have the genes for celiac. The report came back with  DQ 2.2 plus other markers that I guess are necessary in order for it to be possible to have celiac. Apparently DQ 2.2 is the "rarer" kind but based on my report it's genetically possible for me to have celiac.  I know the next step is to bring gluten back so I can get testing but I am just not wanting to do that. After suffering with diarrhea for years I can't bring myself to do it right now. So that is where I am!   

learned I had a high PTH level in 2022 suspected to be due to low vit D  got my vit D level up a bit but still have high PTH   I am 70 yrs old (today in fact) I am looking for someone who also has hyperparathyroidism that might be caused by malabsorption    

I am on day 13 of eating gluten  and have decided to have the celiac panel done tomorrow instead of Wed. (and instead of extending it a few more weeks) because I am SO incredibly sick. I have almost no appetite and am not able to consume the required daily intake of calcium to try to keep up with the loss of calcium from the high parathyroid hormone and/or the renal calcium leak.    I have spent the past 15 years working hard to improve my health. I lost 50lbs, got off handfuls of medications, lowered my cholesterol to enviable levels, and in spite of having end stage osteoarthritis in both knees, with a good diet and keeping active I have NO pain in those joints- til now.  Almost all of my joints hurt now I feel like someone has repeatedly punched me all over my torso- even my ribs hurt- I have nausea, gas, bloating, headache, mood swings, irritability, horrid flatulence (afraid to leave the house or be in any enclosed spaces with other people- the smell would knock them off their feet) I was so sure that I wanted a firm diagnosis but now- I'm asking myself is THIS worth it? esp over the past 2 yrs I have been feeling better and better the more I adjusted my diet to exclude highly refined grains and processed foods. I didn't purposely avoid gluten, but it just happened that not eating gluten has made me feel better.   I don't know what I would have to gain by getting a definitive diagnosis. I think possibly the only advantage to a DX would be that I could insist on gluten-free foods in settings where I am unable to have access to foods of my choice (hospital, rehab, nursing home)  and maybe having a medical reason to see a dietician?   please let me know if it's reasonable to just go back to the way I was eating.  Actually I do plan to buy certified gluten-free oats as that is the only grain I consume (and really like) so there will be some minor tweaks I hope and pray that I heal quickly from any possible damage that may have been done from 13 days of eating gluten.    

So I've been dealing with chasing the name celiac because of my body actively dealing with health issues related to celiac though not eating. Diagnosed in 1994 before foods eliminated from diet. After 25 years with former pcp I googled celiac specialist and she wasn't because of what ive been through. I wanted my results to be sent to my pcp but nothing was sent.I have email copies.I did one zoom call with np with team member from celiac specialist in Nov 2025 and she asked me why I wanted to know why I wanted the celiac diagnosis so bad, I sad I don't, its my life and I need revalidaion because its affecting me.KB stated well it shows you are.I asked then why am I going through all this.I was labeled unruly. Its been a celiac circus and medical has caused anxiety and depression no fault to my own other than being born with bad genetics. How is it legal for medical professionals to gaslight patients that are with an ailment coming for help to be downplayed? KB put in my records that she personally spent 120min with me and I think the zoom call was discussing celiac 80 min ONE ZOOM call.SHE is responsible for not explaining to my pcp about celiac disease am I right?