If you have just been diagnosed, building a gluten free diet for celiac disease can feel overwhelming, and I want to reassure you from the very first line: this becomes manageable, even second nature, with the right structure. In my practice I sit with many clients in exactly this position, staring at a supermarket shelf and wondering what on earth is safe to eat. Over the years I have learned that the fear settles once you understand a few clear principles rather than trying to memorise endless lists. This guide walks you through those principles the way I would in a first consultation.
A gentle but important note before we begin: nutrition works alongside your medical care, never instead of it. Celiac disease is a serious autoimmune condition that needs a formal diagnosis from your doctor or gastroenterologist, and any changes to your diet or supplements should be discussed with them. What I offer here is practical, evidence-aware guidance to help you eat well within the plan your medical team has set. Please do not use this article to self-diagnose or to replace professional monitoring.
For deeper context, see: 5 Nutrition Changes That Actually Help with PCOS (From a Dietitian Who Gets It).
What Celiac Disease Actually Is (and How It Differs from Gluten Sensitivity)
Celiac disease is an autoimmune condition, not an allergy or a simple intolerance. When someone with celiac eats gluten, their immune system attacks the lining of the small intestine, damaging the tiny finger-like villi that absorb nutrients. Over time this can lead to deficiencies, anaemia, bone thinning and a long list of symptoms that are not always digestive. Some of my clients came to me with fatigue, low iron or even tingling in their hands, never suspecting their gut.
This is quite different from non-celiac gluten sensitivity, where people feel unwell after gluten but show no intestinal damage and no autoimmune antibodies. Both are real and both deserve care, but the stakes differ. For celiac disease, even trace amounts of gluten cause harm, whether or not you feel symptoms afterwards. That is why the standard is a strict, lifelong gluten free diet rather than simply "cutting down". Understanding this distinction helps clients take cross-contamination seriously, which we will come to shortly.
Foods That Contain Gluten
Gluten is a protein found in three grains: wheat, barley and rye. That sounds simple, but wheat in particular hides under many names. The obvious sources are the ones most people expect:
- Wheat products: bread, pasta, couscous, most breakfast cereals, cakes, biscuits, pastries and pizza bases.
- Barley: often in soups, malt vinegar, malt extract, many beers and some flavoured drinks.
- Rye: rye bread, crispbreads and some crackers.
- Wheat relatives: spelt, kamut, semolina, durum, farro, bulgur (bulgur wheat) and triticale all contain gluten.
Oats deserve a special mention. Pure oats are naturally gluten free, but standard oats are very often contaminated with wheat during growing and milling. For celiac disease, only oats labelled specifically as gluten free are safe, and even then a small number of people react to the oat protein itself. I usually ask clients to introduce certified gluten free oats cautiously and to mention any symptoms at their next medical review.
Naturally Gluten Free Foods to Build Your Plate Around
Here is the reassuring part I always emphasise: a huge proportion of whole, everyday food is naturally gluten free. Rather than focusing only on what you cannot have, I encourage clients to build meals around these foundations.
- Fresh produce: all fruits and vegetables in their natural state.
- Proteins: fresh meat, poultry, fish, eggs, and plain tofu and tempeh.
- Dairy: plain milk, natural yoghurt and most cheeses.
- Pulses: lentils, chickpeas, beans and peas, which are brilliant for fibre and iron.
- Gluten free grains and starches: rice, quinoa, buckwheat (despite the name, it is not wheat), millet, amaranth, teff, cornmeal, polenta, potatoes and certified gluten free oats.
- Nuts and seeds: unflavoured, plus their butters.
Notice how many gluten free grains exist beyond rice. Clients who lean only on rice and gluten free white bread often end up with a monotonous, low-fibre diet, so I nudge them towards quinoa, buckwheat and millet to keep meals varied and nourishing.
Hidden Gluten Sources That Catch People Out
Once you have the obvious sources handled, the real skill is spotting hidden gluten sources. Gluten is used as a thickener, filler and stabiliser in a surprising range of products, and this is where many accidental exposures happen. I ask clients to become confident label readers.
- Sauces and condiments: soy sauce (usually contains wheat, so choose tamari labelled gluten free), gravy granules, salad dressings, some mustards and stock cubes.
- Processed meats: sausages, some burgers, breaded or coated products and certain deli meats use wheat as a binder.
- Malt: malt vinegar, malted drinks and many breakfast cereals.
- Unexpected items: some sweets, liquorice, communion wafers, certain medications and supplements that use wheat starch as a filler.
- "Wheat-free" traps: a wheat-free label does not guarantee gluten free, as the product may still contain barley or rye.
In the EU, the top allergens including cereals containing gluten must be emphasised on ingredient lists, which is genuinely helpful for expats shopping in the Netherlands, Germany or Belgium. Look for wheat, barley, rye and their derivatives highlighted in the ingredients, and learn the certified gluten free symbol (the crossed grain ear) for quick reassurance.
Cross-Contamination: The Detail That Matters Most at Home
For celiac disease, cross-contamination gluten is not a minor concern, it is central. A naturally gluten free food can become unsafe simply by touching a surface, utensil or oil that has held gluten. This is the part clients most often underestimate at first.
Practical steps I recommend for a shared kitchen:
- Dedicated toaster or toaster bags, since crumbs are a classic culprit.
- Separate butter, jam and spread jars, or a squeeze bottle, to avoid double-dipping crumbs.
- Own chopping board and colander, as gluten lodges in scratches and mesh.
- Fresh cooking water and oil: do not boil gluten free pasta in previously used water or fry in oil that has cooked breaded food.
- Clean surfaces and hands before preparing gluten free food, and store gluten free items on higher shelves so nothing falls onto them.
None of this needs to make your kitchen feel like a laboratory. Once these habits are in place they become routine, and the family often adopts them without much fuss.
Minding the Nutritional Gaps on a Gluten Free Diet
A gluten free diet is not automatically a healthy one. Many commercial gluten free breads and snacks are lower in fibre and fortified vitamins and higher in sugar, fat and refined starch than their wheat counterparts. In my consultations I keep an eye on a few specific gaps.
- Fibre: wheat is a major fibre source in most diets, so I make sure clients get plenty from pulses, gluten free wholegrains, fruit, vegetables, nuts and seeds. This also supports the gut as it heals.
- Iron: both the intestinal damage of untreated celiac and the loss of fortified cereals can lower iron. Red meat, pulses, eggs and leafy greens help, and pairing plant iron with vitamin C improves absorption.
- B vitamins: wheat flour is often fortified with folate, thiamin and niacin, which gluten free products may lack. Pulses, eggs, gluten free wholegrains and green vegetables help fill the gap.
- Calcium and vitamin D: important for bone health, which celiac disease can compromise.
This is exactly where working with a dietitian earns its keep. Rather than guessing, we look at your actual intake, your blood results from your doctor, and whether a targeted supplement is warranted. Newly diagnosed clients in particular benefit from a check that the gut is absorbing nutrients again as it heals.
Eating Out and the Expat Challenge
Eating away from home is where many of my clients feel most anxious, and expats face an extra layer: navigating menus, labels and staff conversations in a second or third language. It is entirely doable with a little preparation.
- Call ahead where you can, and choose restaurants that mark gluten free options or understand allergens.
- Learn the key phrase in the local language. In Dutch, "glutenvrij"; in German, "glutenfrei". Being able to say "I have celiac disease, no wheat, barley or rye, and please avoid cross-contamination" removes a lot of stress.
- Ask specific questions: is the sauce thickened with flour, is the chips fryer shared with breaded food, is the soy sauce gluten free?
- Carry safe snacks for travel days, since options at stations and airports can be limited.
- Use community resources: local celiac associations in the Netherlands, Germany and Belgium publish restaurant lists and shopping guides that are worth their weight in gold.
Over time, most clients build a mental map of reliable spots near home and work, and eating out stops feeling like a minefield.
When to Get Tested
One point I stress firmly: do not start a gluten free diet before being tested. The blood tests and, where indicated, the intestinal biopsy used to diagnose celiac disease rely on gluten being in your system. If you remove gluten first, the results can come back falsely negative, and you may face the difficult prospect of a gluten challenge later.
If you have symptoms such as persistent digestive trouble, unexplained fatigue, iron-deficiency anaemia, mouth ulcers or a family history of celiac disease, speak to your doctor about testing while still eating gluten. Celiac disease also has a genetic component, so first-degree relatives of diagnosed people are often advised to be screened even without obvious symptoms.
Working Together at Hanzi Nutrition
A gluten free diet for celiac disease is a lifelong change, but it is one that thousands of people manage well, eating varied, delicious and nourishing food. The early weeks are the hardest, and that is precisely when a little expert guidance makes the biggest difference, helping you avoid hidden gluten, close nutritional gaps and rebuild confidence at the supermarket and the dinner table.
If you would like personalised support, I would be glad to help. At Hanzi Nutrition I work with clients across the Netherlands, Germany, Belgium and beyond, in both Turkish and English, to build a practical plan around your life, your tastes and your medical needs. You can book a consultation to create a personalised gluten free plan, and we will take it one confident step at a time, together.
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