Complaints & connections · borters.ch

Celiac disease

DE FR EN

Not an intolerance but an immune reaction to gluten that damages the small intestine — consistently avoided, it heals again.

Also known as: celiac disease · gluten intolerance (autoimmune)

Open in the tool — with search and all the links →

This compilation is for information and replaces neither medical diagnosis nor treatment. If you have symptoms, see a doctor.

In coeliac disease the immune system reacts to gluten, the protein of wheat, rye and barley, and in doing so turns against the lining of the small bowel. The fine villi with which the gut takes up nutrients flatten; the absorbing surface shrinks. This is not an intolerance that can be dosed but an autoimmune disease — and there lies the key difference from gluten sensitivity, in which symptoms occur without the gut being damaged. The picture is far broader than the phrase bowel disease suggests: a large share of those affected have hardly any bowel symptoms and instead stand out through a stubborn iron deficiency, through tiredness, through early low bone density, through recurring mouth ulcers or an itchy blistering rash. Decisive for the road to diagnosis is a rule often learned too late: testing is done on a gluten-containing diet. Cutting it out beforehand makes the investigation useless and leaves the choice of eating for months what does not agree with you, or staying without a diagnosis. Transglutaminase antibodies are measured together with total IgA, and in adults confirmation comes from a tissue sample. The treatment is gluten-free for life — kept to consistently, the lining recovers.

Levers & pathways

associatedWhen the mouth is the only sign

Recurring sores in the mouth can occur without the belly ever causing complaints. With repeats it is worth looking at iron, B12, folate — and at coeliac disease itself.

studiedDo not cut it out before testing

The single most important sentence. On a gluten-free diet, antibodies and tissue return to normal — the diagnosis then cannot be made without eating it again for months.

studiedMeasure total IgA as well

With an IgA deficiency the usual test is falsely negative. Without that second value a normal result can mislead.

studiedWatch for hidden gluten

Soy sauce, beer, many ready-made sauces, malt. The shared toaster and shared bread board count too — even small amounts keep the inflammation awake.

studiedCheck again after a year

Antibodies and nutrients belong checked. If symptoms persist despite a strict diet, hidden gluten is often behind it — or something else alongside.

studiedGluten-free is not automatically healthier

For people without coeliac disease, avoiding it achieves nothing and often costs fibre. For those affected it is the treatment — not a way of eating.

studiedThe same picture from a different cause

Fatty stool, wind and weight loss with flattened small-bowel villi look very like coeliac disease. Before a lifelong diet the stool sample is worth doing.

studiedWhat the medicine does — and what it does not

There is no medicine. The gluten-free diet is the treatment — and it works: antibodies fall over months, the villi of the small intestine rebuild over months to two years.

studiedNumbers and timeframes

About one in a hundred people has coeliac disease; a large share do not know. Several years often pass between the first symptoms and the diagnosis. On a gluten-free diet the antibodies fall over six to twelve months, the villi need up to two years.

Possible complaints

studiedIron deficiency that keeps coming back

Often the only sign. An iron deficiency with no identifiable source of bleeding that does not hold despite iron is one of the best reasons to test for coeliac disease.

studiedDiarrhoea, bloating, weight loss

The classic picture — but by no means in everyone. Some even have constipation or no bowel symptoms at all.

studiedRecurring mouth ulcers

Common and easily overlooked, because on their own they seem harmless. Together with tiredness and iron deficiency they make a pattern.

studiedItchy blistering rash on elbows and knees

A skin form of the same disease. It can occur without bowel symptoms and clears under a gluten-free diet.

associatedEarly weak bones or enamel defects

A consequence of poor absorption over years. In children permanent grooves can remain in the enamel.

studiedFirst-degree relatives

Siblings and children of those affected have a clearly higher risk. A test is worthwhile there even without symptoms.

Blood values

associatedFerritin

Low from iron malabsorption.

associatedVitamin B12

Can fall through malabsorption.

Nutrients

studiedIron

The commonest deficiency here.

studiedVitamin B12

Affected with extensive involvement.

studiedFolate

Absorbed in the upper bowel — often low.

associatedVitamin D

Fat-soluble vitamins suffer too.

associatedCalcium

Poor uptake → bone risk.

Supplements

studiedMultivitamin/multimineral

In the first months after diagnosis, while the villi recover. Iron, folate, B12, calcium and vitamin D are most often low — targeted after measurement beats blanket cover.

studiedIron

The most common deficiency in coeliac disease, often already before the diagnosis. After starting the gluten-free diet uptake recovers over months — then measure again rather than keep supplementing.

infoVitamin B12

Clearly worthwhile and well supported when deficient — vegan, older adults, certain drugs. No energy boost without a deficiency.

infoFolic acid / folate

In pregnancy clearly established against neural-tube defects, otherwise mainly with deficiency. Can mask a B12 deficiency — watch both.

infoVitamin D3 (+K2)

Clearly worthwhile and well studied when deficient; fewer data for the wider uses. Fat-soluble — check blood levels at high doses.

Hormones

associatedT4 (thyroxine)

Coeliac disease and thyroid conditions occur together far more often than chance would predict — both are autoimmune. That is the reason to measure TSH once, even without complaints.

studiedCalcitriol (vitamin D hormone)

The damaged small-bowel lining takes up calcium and vitamin D poorly. This is why bone density belongs to the first work-up — some of those affected already have marked bone loss at diagnosis.

associatedProlactin

Untreated, coeliac disease goes more often with cycle disturbances, a later first period and fertility problems. On a consistently gluten-free diet this recedes for some.

Food

studiedStrictly gluten-free

The only causal treatment.

Alternative approaches — what people use

studiedDiet change

The gluten-free diet is not an alternative here but the treatment — lifelong and strict.

studiedIron

The store is often empty at diagnosis and only refills once the lining has healed.

studiedVitamin D

Like iron and folate, a value checked at diagnosis and afterwards.

Frequencies — what is on file

traditionalCeliac disease

Listed values: 594 · 656 Hz