What’s the Connection Between Celiac Disease and Iron Deficiency?

By / April 6, 2026
Low iron that won’t improve graphic explaining connection between celiac disease and iron deficiency.

Inside: If your iron levels won’t improve — even with supplements — there may be a deeper reason. Celiac disease is one of the most overlooked causes of iron deficiency in women. In this blog, you’ll learn how celiac affects iron absorption, the symptoms to watch for, and the key tests to ask for so you can better understand what your body needs.

On this page 🌿 hide
You’re Doing Everything Right… But Still Feel Off
The Turning Point: It Wasn’t Just Iron
What Is the Connection Between Celiac Disease and Iron Deficiency?
Why Iron Absorption Gets Affected
Signs Your Iron Issues Might Be Linked to Celiac
When to Test for Celiac Disease (and What to Ask For)
It’s important to look at your iron properly too
5 Practical Ways to Support Iron (If Celiac Is a Factor)
Why This Matters More Than You Think
A Quick Note on “Normal” Labs
You’re Not Missing Something… There’s Just More to the Story
Here Are 3 Ways to Get Support
More Wellness Reads:

If you’ve ever been told to “just take iron supplements” and move on… I get it.

I did that too.

For years, my iron levels stayed low. My ferritin wouldn’t budge. I was tired, foggy, and constantly trying to “do the right things.” I ate well. I took supplements. I followed the advice.

Still nothing really changed.

It wasn’t until I looked deeper at my gut that things finally started to make sense.

And this is where the connection between celiac disease and iron deficiency becomes so important.

Because sometimes… it’s not about how much iron you’re taking.

It’s about whether your body can actually absorb it.

You’re Doing Everything Right… But Still Feel Off

This might sound familiar.

You’re eating well.
You’re trying to be consistent.
You’ve maybe even added iron supplements.

But you still feel:

  • tired no matter how much you sleep
  • dizzy or “off”
  •  low energy during the day
  • short of breath with simple things
  • frustrated because your labs are “fine”

Or maybe your iron is low… but nothing seems to improve it long-term.

That’s often the missing piece.

When we talk about celiac disease and iron deficiency, we’re really talking about absorption.

And that’s something most women are never told.

The Turning Point: It Wasn’t Just Iron

For me, things started to shift when I stopped asking:
“Why is my iron low?”

And started asking:
“Why can’t my body use iron properly?”

That led me to uncover deeper root issues like gut imbalance, stress, and how my body was processing nutrients.

In my case, I don’t have celiac disease.
But I did learn that I have a gluten sensitivity and genetic markers that increase my risk.

So, I chose to remove gluten to better support my gut and absorption.

One big piece that often gets missed?
Damage to the gut lining.

And that’s exactly what happens with celiac disease.

Simple diagram showing how gut health affects iron absorption in celiac disease. Save

It’s not always about how much iron you eat — it’s about how well your body can absorb it.

What Is the Connection Between Celiac Disease and Iron Deficiency?

Let’s break this down.

Celiac disease is an autoimmune condition where your body reacts to gluten (a protein found in wheat, barley, and rye).

When someone with celiac eats gluten, it damages the lining of the small intestine [1].

That lining is where nutrients are absorbed.

Including iron.

So even if you’re eating iron-rich foods…
Even if you’re taking supplements…

Your body may not be absorbing it well.

That’s why iron deficiency is one of the most common signs of undiagnosed celiac disease [2].

And in many cases, it’s the first sign.

Why Iron Absorption Gets Affected

Here’s the part most people don’t realize.

Iron is mainly absorbed in the upper part of the small intestine (duodenum) [3].

That’s also the exact area most affected in celiac disease.

So, when that area is inflamed or damaged:

  • iron absorption drops
  • ferritin levels stay low
  • supplements may not work well
  • symptoms keep coming back

This is why some women take iron for months… even years… and still feel the same.

It’s not a willpower issue.

There’s just a missing piece.

Signs Your Iron Issues Might Be Linked to Celiac

Not everyone with celiac has obvious digestive symptoms.

That’s what makes this tricky.

Some women feel:

  • bloated or gassy
  • constipated or loose stools
  • sensitive to certain foods

But others don’t notice anything digestive at all.

Instead, it shows up as:

  • low iron or ferritin
  • fatigue
  • brain fog
  • hair thinning
  • anxiety or low mood

That’s why celiac disease and iron deficiency often go together quietly in the background.

Checklist of tests for low iron including full iron panel and celiac screening. Save

Many women are only tested partially. A full iron panel and celiac screening can give a much clearer picture.

When to Test for Celiac Disease (and What to Ask For)

If your iron isn’t improving…
or keeps dropping again…
This is where testing matters.

Most women are not getting the full picture.

Testing for celiac disease is usually done through bloodwork (looking at specific antibodies) and sometimes a biopsy if needed [4].

For celiac disease, ask your doctor about:

  • tTG-IgA (tissue transglutaminase antibodies) — checks if your immune system is reacting to gluten and damaging your small intestine
  • Total IgA — makes sure your immune system is producing enough antibodies so the celiac test results are reliable

In some cases, your doctor may also recommend a small intestinal biopsy to confirm diagnosis.

Important:

👉 Save
You need to be eating gluten regularly before testing
(or results can come back inaccurate)

It’s important to look at your iron properly too

A single marker doesn’t tell the full story.

A more complete iron panel includes:

  • Ferritin — shows how much iron you have stored in your body
  • Serum iron — measures the amount of iron currently circulating in your blood
  • TIBC (total iron binding capacity) — shows how much space is available to carry iron
  • Transferrin saturation — shows how much of that space is actually being used

This helps you understand:

  • how much iron you have
  • how well you’re transporting it
  • and whether your body can actually use it
Balanced meal with iron-rich foods and vitamin C to support absorption. Save

Pairing iron-rich foods with vitamin C helps your body actually absorb and use iron more effectively.

5 Practical Ways to Support Iron (If Celiac Is a Factor)

Start simple.

1. Get Proper Testing Before Going Gluten-Free

This one matters more than people realize.

If you suspect celiac, don’t remove gluten yet.
Test first.

For accurate results, you typically need to be eating:
👉 at least 2 servings of gluten daily for 6–8 weeks before testing

(Otherwise, your results can come back falsely negative.)

This is one of the most common reasons women miss a diagnosis.

2. Focus on Gut Support (Not Just Iron Intake)

If the gut lining is irritated, absorption won’t improve — no matter how much iron you take.

Supporting digestion can look like:

  • sitting down to eat (not rushing or multitasking)
  • chewing your food thoroughly
  • eating in a calm, relaxed state
  • spacing meals so your body can fully digest

You can also gently support stomach acid and digestion by:

  • including protein at meals
  • avoiding constant snacking
  • paying attention to how foods feel in your body

This is where a personalized approach can make a big difference.

3. Choose Iron Foods That Are Easier to Absorb

Not all iron is equal.

Heme iron (from animal foods) is absorbed more easily than plant sources.

Simple options:

  • red meat
  • chicken
  • eggs
  • fish

Pair these with vitamin C foods like:

  • berries
  • citrus
  • bell peppers

This helps your body absorb more of the iron you’re already eating.

4. Be Thoughtful With Supplements

More isn’t always better.

If your gut is struggling, high-dose iron can feel harsh and sometimes make symptoms worse.

This is where:
• the form of iron
• the dose
• and the timing

really matter.

In some cases, if iron levels are very low, you can also talk to your doctor about:
👉 IV iron infusions

This can help bypass the gut while you’re working on improving absorption.

5. Support Your Nervous System Too

This might sound unrelated, but it’s not.

Your body can’t digest and absorb well when it feels stressed.

Supporting your nervous system helps your body use nutrients better.

Simple things:

  • slow, present meals
  • consistent eating times
  • getting enough rest

Calming routines can also help, like:

  • gentle yoga
  • short walks in nature
  • journaling
  • meditation or quiet time

Small shifts add up.

Why This Matters More Than You Think

When we look at celiac disease and iron deficiency, it changes the conversation.

It moves from:

“Why is my iron low?”

To:

“What’s blocking my body from using iron properly?”

And that’s where real progress happens.

A Quick Note on “Normal” Labs

This comes up a lot.

You might be told your labs are normal.

But you don’t feel normal.

Iron deficiency can still exist even when labs fall within “range,” especially if ferritin is on the lower end.

If this resonates, you might also want to read:

You’re Not Missing Something… There’s Just More to the Story

If your iron hasn’t improved, it doesn’t mean you’re doing anything wrong.

It just means your body might need a different kind of support.

More personalized.
More root focused.
More connected to what’s going on underneath.

Free guide and meal plan that shares simple, food-first ways to support iron absorption, steady your energy, and rebuild your iron levels naturally. Save

Free guide and meal plan that share simple, food-first ways to support iron absorption, steady your energy, and rebuild your iron levels naturally.

Here Are 3 Ways to Get Support

Start small — grab a free guide
Choose the wellness topic you want support with (iron, gut health, nervous system, or sugar cravings) and get simple, practical steps you can use right away.
Access all free guides in the freebies library.

Go deeper — Nervous System Reset Guide + Digital Bundle
If your stress, digestion, or energy feel out of sync, this guide helps you calm your system and feel more balanced.
Explore the digital guide on the digital resources page.

Get personalized support — The Calm & Clear Method
This is my 3-month 1:1 program where we look at your labs, symptoms, and root causes to support iron levels, digestion, and energy in a way that actually fits your life.
You can also access a free 15-minute mini masterclass to walk you through how this works.

You’re not stuck.

You just might need to look in a place no one has shown you yet.

And if celiac disease and iron deficiency are part of your story… now you know where to start.

If you’d like to stay connected, I share gentle, practical education and reflections on social — including Instagram and Facebook.

Be well,

Alysha Breanne
📧 alysha@alyshabreanne.com
📱 @alyshabwellness

More Wellness Reads:

  • iron deficiency without anemia Save
    Iron Deficiency Without Anemia: Why You Feel… Women’s Health
  • Woman holding coffee and toast while standing by a window, looking tired, a common sign of symptoms with low iron. Save
    10 Symptoms with Low Iron Women Shouldn’t Ignore Women’s Health
Alysha Breanne

Alysha Breanne, CHN, CFNP — Certified Holistic and Functional Nutritionist helping women with iron deficiency, low ferritin, fatigue, and absorption issues restore steady energy using personalized nutrition and testing when needed.

Spread the love