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Home » Gluten Free Information » Celiac Disease vs. Gluten Intolerance: What Do You Have?

Celiac Disease vs. Gluten Intolerance: What Do You Have?

Last Updated September 15, 2021. Published February 8, 2018 Good For You Gluten Free

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Celiac Disease vs. Gluten Intolerance: What Do You Have?

Celiac disease and gluten intolerance (also known as non-celiac gluten sensitivity) are different yet similar disorders. In this article, I’ll discuss each disorder and help you understand why people often confuse the two. This post contains affiliate links and information you can discuss with your healthcare provider. Please see my disclosures.

Millions of people in the U.S. and worldwide are avoiding gluten, a protein found in wheat, barley, rye and derivatives of these grains, either due to a celiac disease diagnosis, or because they innately feel like gluten is making and keeping them sick.

With the spotlight on gluten and gluten-free diets, you might be wondering if gluten might be behind what is making – and keeping – you sick.

Firstly, I want you to know that reliable studies show that all humans – regardless if they celiac disease or gluten sensitivity – experience some sort inflammatory response upon consumption of gluten. This doesn’t mean everyone has an issue with gluten; but it may mean gluten could be the root cause of diseases that begin in the gut.

The sad truth is that 60 percent of American adults live with at least one chronic condition and 42 percent have more than one. These diseases bring about great emotional and physical costs, and put unsustainable financial burdens on the private and public sector. For most of these adults, they don’t know the root cause of their suffering.

In my many years of studying nutrition, I’ve come to realize that what you eat indisputably affects how you feel. Food can be used as a tool to heal our bodies or hurt our bodies. “Food is medicine,” the great Hippocrates, father of modern medicine, once said.

And while gluten-free diets have been made to look like “fad” diets by celebrities or those trying to eat a certain way to “fit in,” for those with a serious gluten disorder, like celiac disease and gluten intolerance, it’s far from a fad for them.

No one eats gluten free long term because they want to or because it’s “fun.” They do it because they wan to feel better.

No one wants to pay more money, eat less-delicious food (at times), or feel like a social pariah just for the bragging rights to say they’re on a gluten-free diet.

If you’re experience any sort of chronic inflammation or pain, you may be questioning your relationship status with gluten. But before you say goodbye to gluten, let’s first understand celiac disease vs. gluten intolerance, and what may be affecting – or afflicting – you.

My award-winning book, Dear Gluten, It’s Not Me, It’s You, chronicles my journey to break up with gluten and heal my body and soul in the aftermath.

What is Celiac Disease?

Celiac disease is an autoimmune disease signaled by an immune system attack on the small intestine.

Every time someone with celiac disease eats gluten (the trigger food), white blood cells produce antibodies that mistakenly attack the lining of the small intestine, resulting in intestinal damage and villous atrophy.

The small intestine is a 20-25 foot long tube lined with microvilli. These villi are finger-like follicles that surround the small intestine and look a lot like shag carpet.

The microvilli surrounding the small intestine is completely worn down in someone with celiac disease. It looks more like a smooth, flat surface rather than finger-like flowing follicles.

What is Celiac Disease Diagram

The small intestine serves an essential role in your digestive system and overall well-being. It’s responsible for helping you absorb nutrients from the food you eat, and then it helps to distribute those nutrients to every cell in your body.

With a malfunctioning or damaged small intestine, people with celiac disease experience are nutrient deprived and experience a slew of related symptoms such as fatigue, anemia, infertility, low bone density, dental and oral issues such as canker sores and geographic tongue, mental idosrcers, skin rashes, failure to thrive, and more.

How Many People Have Celiac Disease?

According to Dr. Alessio Fasano, one of the world’s leading celiac disease researchers, about 1 in 100 people, or 1 percent of the U.S. population, has celiac disease.

This puts celiac disease as humankind’s most prevalent genetically-linked disease, occurring much more frequently than type 1 diabetes, cystic fibrosis or Crohn’s disease, according to  Dr. Fasano in his book, Gluten Freedom.

Dr. Fasano says that celiac disease is caused by a combination of three factors – each which must be present for celiac disease to thrive:

  1. Genetic predisposition
  2. Consumption of the trigger food (gluten)
  3. Intestinal permeability 

There is no cure for celiac disease, nor any approved treatment options beyond the gluten-free diet, despite the fact that celiac disease is the most researched autoimmune disease in the world and the only autoimmune disease in which the environmental trigger (gluten) has been identified.

What is Gluten Intolerance?

Gluten intolerance, also known as non-celiac gluten sensitivity, has only just started to be recognized as a real medical disorder. Unfortunately, gluten intolerance isn’t take seriously by the medical community despite millions of people testifying that avoiding gluten makes them feel better.

On top of that, there is a lot of confusing information about how to classify gluten intolerance (if it’s not an autoimmune disease, what is it?), as well as a lot of controversy about how to diagnose and treat it.

When someone is gluten intolerant, it means they experience some sort of inflammatory response every time they consume the protein.

Unlike people with celiac disease who experience villous atrophy, people with non-celiac gluten sensitivity experience no changes to their microvilli.

People with gluten intolerance also do not develop tissue transglutaminase (tTg) autoantibodies, which, if present, signals celiac disease.

While gluten intolerance is considered a gluten-related disorder, is not classified as an autoimmune disease at this time.

However, gluten intolerance, if untreated, can be just as serious, and arguably more serious, than celiac disease due to most people with the disorder not taking their diet as seriously as someone with celiac disease. 

In fact, people with gluten intolerance often develop and experience the same roaring symptoms as those with celiac disease when exposed to gluten, and, if unmanaged, a gluten intolerance may lead to the same chronic symptoms and damaging diseases as someone with diagnosed celiac disease.

How Many People Have Gluten Intolerance?

Many more people experience gluten intolerance vs. celiac disease. According to Beyond Celiac, gluten sensitivity affects 18 million people, or six percent of the U.S. population. Gluten intolerance, for all intents and purposes, affects six times as many people than celiac disease.

Celiac Disease vs. Gluten Intolerance Summary

Now that I’ve explained celiac disease and gluten intolerance in detail, I want to outline the main differences and similarities between the two gluten-spectrum disorders.

(1) Number of people affected

Only about 1 percent of the U.S. population has celiac disease, while a much larger percentage of people, about six percent of the population, has non-celiac gluten sensitivity.

(2) Symptoms 

Exposure to gluten in both celiac disease and gluten intolerant patients can result in similar symptoms, including but not limited to gastrointestinal disorders, skin conditions, bone, joint and muscle pain, nutritional deficiencies, mental health disorders, and oral or dental diseases.

If you suspect your body reacts poorly to gluten, you should get tested for celiac disease and, if negative, tested for gluten sensitivity before implementing a gluten-free diet. Read my article, STOP! Don’t Go Gluten-Free Until You Read This.

(3) Testing

While both gluten disorders require a blood test, the tests are looking for different things. 

The celiac disease test is looking for specific gluten antibodies. It’s a simple blood test that I detail in this article about testing for celiac disease. You can also order this at-home celiac disease test if you suspect you have celiac disease. Be sure to discuss the results with your doctor.

Unlike celiac disease, there are no approved biological markers for testing for gluten sensitivity.

Leading gluten disorder expert, Dr. Tom O’Bryan, author of The Autoimmune Fix, recommends testing for a gluten sensitivity via Cyrex Labs, which examines a variety of gluten peptides that may indicate your body’s distaste for gluten. Other experts recommend an elimination diet to ascertain if gluten is root cause of your woes.

(4) Immune response

Celiac disease and gluten intolerance cause different immune system responses.

People with non-celiac gluten sensitivities tap into the body’s innate (nonspecific) immune system. Innate immunity is the body’s first defense against foreign invaders that want to attack your cells, such as viruses, bacteria, parasites.

Your innate immunity occurs naturally, as it’s “innate.” In order for a pathogen to attack your cells, it’s going to have to get past your innate immune response first.

On the other hand, people with celiac disease experience an adaptive (or acquired) immune system response to gluten over time.

Adaptive immunity is your body’s second line of defense against invaders and is much more complex.

Once an invader (gluten) is introduced in the body, the adaptive immune system creates an army of immune cells designed to attack that specific antigen. The immune system remembers those antigens so it can initiate future attacks more efficiently.

(5) Damage caused

People with celiac disease experience damaged and flattened microvilli (villous atrophy) while people with gluten intolerances typically have normal, but inflamed, villi.

(6) Mortality rates

A 2009 study published in the Journal of the American Medical Association (JAMA) set out to understand mortality rates associated with gluten disorders. This is the largest study ever published on this topic.

Researchers examined 351,000 intestinal lining biopsies and found 46,121 patients on the “celiac spectrum.” Specifically, researchers found:

  • 29,096 had celiac disease (with damaged microvilli)
  • 17,025 showed early stages of celiac disease development (the microvilli were showing early signs of being damaged)
  • 13,000 did not have worn-down microvilli or positive blood work, yet they had gluten sensitivity and inflammation

Researchers found that people with celiac disease had a 39 percent increased risk of early mortality; however, what is even more shocking is that people with inflammation due to gluten sensitivity had a 72 percent increased risk of early mortality! 

In other words, someone with gluten sensitivity has a higher risk of early death than someone with celiac disease.

(7) Prevalence of other diseases

Research indicates that 25 percent of patients with autoimmune diseases have a tendency to develop additional autoimmune diseases.

Because celiac disease is an autoimmune disease, people with celiac disease may have a higher risk of collecting additional autoimmune diseases than someone with gluten sensitivity.

However, it’s important to note that many researchers say gluten sensitivity is a precursor to autoimmune disease, and Dr. O’Bryan makes a clear argument for this in his groundbreaking book. This means both disorders, if left unmanaged, put you at higher risk for accumulating additional autoimmune diseases.

What Do You Have?

If you eat gluten and believe experience unwanted symptoms as a result, it’s important you talk to your doctor about whether you might have celiac disease vs. gluten intolerance.

Step #1: The first step to figuring out if gluten is to blame is to rule out celiac disease. Talk to your doctor about taking a simple blood test. If the test is positive, you have celiac disease and your doctor will likely follow up your diagnosis with an endoscopy procedure to biopsy the small intestine.

Please read my article, How to Get Tested for Celiac Disease, to better understand the testing process, as well as learn more about an at-home celiac disease test where you can test yourself for celiac disease in the comfort of your own home.

Step #2: If there is no evidence of celiac disease, but you still have an inflammatory reaction every time you eat gluten, you likely suffer from non-celiac gluten sensitivity.

There are blood tests available from Cyrex Labs that can test for gluten sensitivity (your doctor must order these labs – be sure to show him/her exactly what you want and be firm in your request as many doctors are unaware these tests exists as it is well beyond their scope of training or knowledge).

Remember, in order to be tested for celiac disease or gluten intolerance, you must be eating gluten. Do not initiate a gluten-free diet until you’ve ruled out celiac disease and have been tested for gluten sensitivity. I discuss the many reasons why you must get tested first before you go gluten free in this important article.

If you have been following a gluten-free diet for awhile, but still want to get tested for celiac disease and/or non-celiac gluten sensitivity, please read my article, Should You Take the Gluten Challenge?

Step #3: If your non-celiac gluten sensitivity test is also negative, talk to your doctor about if something more may be at play. Not everything can be blamed on gluten.

Additional Reading

At-Home Celiac Test: Is It Reliable?

Can Celiac Disease Kill You?

12+ Must Read Books about Celiac Disease and Gluten-Free Living

Free Sample Celiac Disease Meal Plan

Understanding Gluten Sensitivity and Gluten Sensitivity Testing

Filed Under: Celiac Disease, Gluten Free Information, Gluten Sensitive 11 Comments

Reader Interactions

Comments

  1. Darlene says

    February 29, 2020 at 4:18 pm

    recently diagnosed with celiac disease, eating non gluten food, in two months I have felt much better. I read all I can about this so I can remain ok feeling. Thank you for your articles!!

  2. Kathleen says

    June 27, 2019 at 1:02 am

    Great info. I’m starting the testing with upper & lower G.I. I’ve had digestive problems for 30 + yrs. Have jerked body about with vegetarian eating, Dr. Atkins since 1975, off & on. Plus other weird eating. Finally beginning to understand digestive problems with your help. Going to get gut healthy even if it kills me. teehee. Thankx, Kathleen

  3. Jenny says

    May 18, 2019 at 3:39 pm

    Do you mean your celiac test was negative? I think if you continue to get negative tests but you know gluten makes you sick, avoid it. You don’t need a diagnosis to know how your body reacts to certain foods. Gluten can be tied to other conditions (skin and thyroid) although the research isn’t there yet. Don’t mistake lack of research with a nonexistent condition though. Gluten sensitivity is real! Feel better friend.

  4. Loretta berg says

    May 18, 2019 at 10:05 am

    I had the blood test done for gluten but it was negative. And I know I’m sensitive to gluten.So what other tests can I take to make sure .I also am hypothyroidism.Gluten is a big culprit for people who have hypothyroidism.
    I was itchy for two months and was wandering if it was gluten ?

  5. Jenny says

    February 19, 2019 at 6:23 pm

    The treatment for celiac is the same as a gluten sensitivity. Just the way gluten affects your body is different. You can have celiac and sensitivity and wheat allergy. And you can just have one. Does that make sense? Please keep in mind you can’t be allergic to gluten. You can be allergic to wheat though.

  6. Stacy Veenstra says

    February 19, 2019 at 9:28 am

    Hi Jenny, I appreciated your article – thank you! I have read many articles on the difference between gluten intolerance and celiac disease, but the one question I never see answered is this: since I was diagnosed as allergic to gluten with a blood test, does this mean I have celiac disease? If not, apparently there are at least 3 options: gluten intolerance, gluten allergy, or celiac disease. Is that right? Since I know I’m allergic to gluten, I just don’t allow it in my diet, so it makes little difference if I have celiac or not – I just assume so to be safe – but I would like to better understand. Thanks! Stacy

  7. brooklynne fleming says

    February 3, 2019 at 7:25 am

    Thank you! You have wrote do many great things, and all the recipes make me do hsppy!! Thank you!!!

  8. Jenny says

    December 19, 2018 at 7:34 am

    Hi Cara obviously this is a deeply personal decision but if gluten makes you sick, I would not go back on it just to get a diagnosis where the outcome and treatment is the same. If there is ever a cure and you need a diagnosis, you can make that decision to eat gluten again in order to get tested. Good luck.

  9. Cara says

    December 19, 2018 at 12:00 am

    Thank you for your articles. I have been struggling for a while now with my diet. A couple of years ago finally narrowed down that gluten was the problem. Unfortunately, I had no idea that there was such a thing as Celiac or gluten intolerance. I just cut out the thing that was making me soooooo sick.
    I’ve been gluten free for about 2 years and never tested. I know it’s to late to get tested because it could come up with a false negative.
    Should I just keep on my gluten free life style and not worry about being tested now?

  10. Jenny says

    July 20, 2018 at 8:09 am

    Thank you for your comment Brenda. I’m glad I could help you. Be well!

  11. Brenda says

    July 19, 2018 at 10:56 pm

    Thank You Jenny for all of this very valuable information regarding celiac disease and gluten intolerance. Recently disgnosed with celiac disease, (last week) I’m in the “why” and information gathering stage. I have a lot to learn and from here on out, will look at food and my diet very differently. Brenda

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Hi, I'm Jenny Levine Finke and am passionate about the gluten-free lifestyle. I'm a certified integrative nutrition coach and self-taught expert on [most] gluten-free things. I have celiac disease and know the struggles you're going through first-hand. This is why I've dedicated this blog to serving the celiac and gluten sensitive communities with important information, product and restaurant reviews, and simple recipes I hope you'll love. Read More…

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