If your practitioner has requested you go gluten-free for a while because of a suspicion that gluten is contributing to your vaginal, urinary tract, menstrual or gut symptoms1, here’s how to make the switch as painless as possible.
Gluten sensitivity vs coeliac disease or wheat allergy
You do not have to be allergic to gluten or wheat to have gluten sensitivity. Scientific research2 has confirmed that gluten sensitivity is a real thing in some people, causes symptoms, and can lead to other health problems if left untreated over time.
Removing gluten resolves the impacts of gluten sensitivity, and you’ll notice if this applies to you. But, it can take more than a week or a few days for the impact to be seen as your body stabilises after removing the problem.
Gluten intolerance symptoms
- Cystitis (urinary tract inflammation, often without bacterial findings)3
- Recurrent vaginitis (vaginal inflammation, often without bacterial findings)3
- Vaginal pain during sex (dyspareunia)3
- Menstrual disorders3
- Fatigue4
- Bloating, constipation, diarrhoea, inconsistent stool consistency2
- Nausea4
- Headaches4
- Brain fog4
- Reflux4
- Pain2
Unchecked gluten intolerance can lead to:
- Leaky gut5
- Gut microbiome disturbances and dysbiosis5
- Endometriosis6
- Thyroid autoimmunity7,8
- Autoimmune conditions9, including possibly even yeast-driven coeliac disease10,11
What is gluten?
Gluten is a protein in certain grains (wheat, barley and rye). Some species of wheat contain higher concentrations of gluten than others12. The breed of wheat used for flour varies by location and brand.
For example, most American wheat (hard red wheat) contains more gluten than European wheat (soft wheat), and therefore, people experience fewer gluten sensitivity symptoms in Europe. Additionally, Europe banned the use of glyphosates (RoundUp pesticide), but Australia and the USA routinely use glyphosates on wheat crops, which are linked with many health problems.
Gluten is a complex protein formed from specific proteins in flour, gliadins and glutenins, when mixed with water. The gliadins and glutenins stick to each other and start to interact by forming chemical bonds12.
The properties of dough – elasticity, strength and resistance – depend on the structures and interactions of these proteins. Gliadins and glutenins are composed of varying molecular types and weights. They are not all the same.
How long should you go gluten-free?
The gluten-free diet is 3-12 months, as per your practitioner’s guidance, with a minimum of three months, unless you are diagnosed with coeliac disease (which is different from gluten intolerance) or have a wheat allergy.
If you have coeliac disease or a wheat allergy, you will never be able to eat gluten safely.
If you have leaky gut or irritable bowel syndrome (IBS), it may be shorter, and if you have autoimmune conditions, it could be up to 1-2 years. Each case will be different, so follow the advice of your practitioner and listen to your body.
If gluten is a problem for you, your body will start to heal when it is eliminated. Most people aim to return gluten to the diet in small amounts (as tolerated) after 3-6 months.
What is coeliac disease?
Coeliac disease is an autoimmune disease caused by the body’s reaction to gluten. The small intestinal villi—small, fingerlike projections that increase the surface area for nutrient absorption—become stumpy and damaged.
This damage to the villi reduces your ability to absorb nutrients, leaving you nutrient-deficient and resulting in digestive symptoms such as diarrhoea, fatigue, weight loss, and bloating. Coeliac disease can also lead to osteoporosis and anaemia.
A blood test is available for coeliac disease to test for genes, and an antibody test is also available. Diagnosis requires a biopsy of the small intestine.
If you have coeliac disease, even crumbs of wheat bread can cause a reaction, and gluten must be avoided and considered a danger. Any product that ‘may contain traces of gluten’ must be avoided. Many products, such as soy sauce, may contain wheat or other gluten-containing products, so check labels.
What is a wheat allergy?
In the same way people can be allergic to other foods, some may be allergic to wheat proteins, of which gluten may be one. Symptoms of a wheat allergy may include nausea, shortness of breath, itching, throat and mouth swelling, and even anaphylaxis.
Those allergic to wheat must avoid all types of wheat but may be able to eat gluten from other sources (barley, rye). Each case will be assessed individually for tolerance and tested for allergies.
Gluten intolerance and coeliac disease must be ruled out.
Gluten-containing foods
- Wheat
- Rye
- Barley
- Triticale
- Durum wheat
- Semolina
- Farro
- Cous Cous
- Farina
- Bulgur wheat
- Kamut
- Spelt
- Wheatberries
- Graham
- KAMUT Khorasan wheat
- Einkorn wheat
- Emmer
Hidden sources of gluten include:
- Beer (made from barley)
- Brewer’s yeast (made from barley)
- Breakfast cereals (check the labels)
- Liquorice (sweets, but liquorice tea and herb is fine)
- Malt (malted barley flour, malted milk or milkshakes, malt extract, malt syrup, malt flavouring, malt vinegar)
- Processed meats
- Premade sauce – marinade, gravy, spice mix (check labels)
- Soy milk (check label, there is often barley malt syrup)
- Soy sauce (tamari tends to be gluten-free, but check the label)
- Vegetarian and vegan meat substitutes (check labels)
- Wheat starch not processed to remove the presence of gluten to below 20ppm and adhere to the FDA Labeling Law
Areas of easy cross-contamination
- Toasters used for all types of bread
- Colanders
- Chopping boards
- Sifters
- Shared cooking oil
- Shared containers
- Condiments, spreads, shared utensils, ‘double dipping’: butter, peanut butter, jam/jelly, mustard, mayonnaise
- Airborne wheat flour may contaminate exposed surfaces, utensils or other food
- Oats – choose gluten-free
- Pizza – pizzerias that share gluten and gluten-free bases are not strictly gluten-free
- French fries often contain gluten
- Non-certified baked goods, e.g., “gluten-free” goods from gluten-containing bakeries
- Cross-contamination from bulk bins at grocery stores or co-ops
Naturally gluten-free foods
- Fruit
- Vegetables
- Nuts
- Seeds
- Legumes (beans, chickpeas, lentils)
- Eggs
- Dairy (milk, cheese, yoghurt)
- Meat
- Chicken, poultry
- Fish
- Grains: rice, tapioca, buckwheat, sorghum, corn, teff, amaranth, millet
- Any product labelled ‘gluten-free’ (not always healthy alternatives, mind you!)
Do oats contain gluten?
Oats contain a compound known as avenin, which is very similar to gluten but not exactly the same. Oats are often prepared on the same machinery as gluten-containing products, and cross-contamination can be a real problem for coeliacs.
Your practitioner will advise you if avoiding oats is important in your case, and which choice of oats. There are ‘uncontaminated’ oat products. Avoiding oats also includes oat milk.
Listen to your body with oats – stop if it doesn’t feel good.
Food | Gluten Content |
---|---|
Amaranth | GF |
Arrowroot | GF |
Bagels | Not GF |
Baked goods: cakes, cookies, pie crusts, brownies | Not GF |
Beans | GF |
Beans, legumes, and nuts | GF |
Beer (unless explicitly gluten-free) | Not GF |
Beers, ales, lagers, malt beverages and malt vinegars | Not GF |
Biscuits | Not GF |
Bread | Not GF |
Breading & Coating Mixes: panko breadcrumbs | Not GF |
Brewer’s Yeast | Not GF |
Brown rice syrup (barley enzymes) | Not GF |
Buckwheat groats (also known as kasha) | GF |
Candy and candy bars, lollies, chocolate bars | Not GF |
Cassava | GF |
Cheesecake filling | Not GF |
Chia | GF |
Communion wafers | Check label or manufacturer |
Corn | GF |
Corn flakes | Not GF |
Cornbread | Not GF |
Crackers | Not GF |
Cream sauces made with a roux | Not GF |
Crepes | Not GF |
Croissants | Not GF |
Croutons | Not GF |
Dairy | GF |
Dessert wine | Not GF |
Distilled alcoholic beverages made from barley malt | Not GF |
Distilled alcoholic beverages with added colours or flavourings | Not GF |
Donuts | Not GF |
Drugs and over-the-counter medications | Check label or manufacturer |
Eggs, Restaurant (may add pancake batter) | Not GF |
Energy bars/granola bars | Not GF |
Fish and seafood | GF |
Flatbreads | Not GF |
Flax | GF |
Flour tortillas | Not GF |
French fries (batter containing wheat flour, fryer contamination) | Not GF |
French toast | Not GF |
Fruits | GF |
Gluten-free oats | GF |
Goldfish crackers | Not GF |
Graham crackers | Not GF |
Granola (often made with regular oats, not gluten-free oats) | Not GF |
Herbal or nutritional supplements | Check label or manufacturer |
Lipstick, lipgloss, lip balm, or other cosmetics used near the mouth | Check label or manufacturer |
Malt drinks | Not GF |
Meat and poultry | GF |
Meat substitutes – (seitan is wheat gluten) – vegetarian burgers, vegetarian sausage, imitation bacon, imitation seafood | Not GF |
Millet | GF |
Most distilled alcoholic beverages and vinegars are gluten-free even when made from gluten-containing grains | GF |
Muffins | Not GF |
Multi-grain or “artisan” tortilla chips | Not GF |
Naan | Not GF |
Noodles – ramen, udon, soba (unless 100% buckwheat), chow mein, egg noodles | Not GF |
Noodles – rice, mung bean noodles | GF |
Nut flours | GF |
Oral care and dental products (Learn about Oral Health) | Check label or manufacturer |
Pancakes | Not GF |
Pasta – ravioli, dumpling, couscous, gnocchi | Not GF |
Pastries | Not GF |
Pita | Not GF |
Play-dough | Check label or manufacturer |
Potato | GF |
Potato bread | Not GF |
Potato chips (seasonings may contain malt vinegar or wheat starch) | Not GF |
Pre-seasoned meats | Not GF |
Pretzels | Not GF |
Processed lunch meats | Not GF |
Pure wheat grass and barley grass (properly processed) | GF |
Quinoa | GF |
Rice | GF |
Rice puffs (if they contain malt extract/flavoring) | Not GF |
Rolls | Not GF |
Salad dressings and marinades | Not GF |
Sauces & Gravies (many use wheat flour as a thickener) | Not GF |
Self-basting poultry | Not GF |
Sorghum | GF |
Soup (flour as a thickener, barley) | Not GF |
Soy | GF |
Soy sauce | Not GF |
Soy sauce | Not GF |
Starch or dextrin (meat or poultry products, may be from any grain) | Not GF |
Stuffings, dressings | Not GF |
Tamari (wheat free) | GF |
Tapioca | GF |
Teff | GF |
Tofu | GF |
Vegetables | GF |
Vitamins and supplements | Check label or manufacturer |
Waffles | Not GF |
Wheat flour | Not GF |
Wine cooler (bottled) | Not GF |
Yucca | GF |
Making the change – practicalities and emotional adjustment
Going gluten-free can seem enormously challenging and can take a while to get used to. This is normal, and you will figure it out, and it will all be ok! Promise.
A gluten-free life takes learning and practice, as well as time and patience. The trickiest part is being ‘that person’ at the dinner table who requires special food preparation, which can feel like you’re being annoying.
You’ll likely find people close to you are happy to accommodate your health needs, and you’ll be able to provide options and recipes as you find them when cooking at home. Going out to eat can be tricky if you’re a coeliac and can’t have any contamination.
If you’re struggling to adapt, please get in touch with your practitioner and talk it over so they can help you. Most people feel much better without gluten and choose to continue to stay mostly gluten-free even when their gluten-free period is over.
Focus on all the vibrant, delicious foods you can eat, don’t put too much pressure on yourself, and enjoy discovering new foods, restaurants, and ways of cooking.
Gluten-free labelling laws
USA gluten labelling laws
According to the FDA, if a food contains wheat starch, it may only be labelled gluten-free if it has been processed to remove gluten and tests to below 20 parts per million of gluten.
“A food containing wheat starch and labelled gluten-free contains no more than 20ppm of gluten. If a product labelled gluten-free contains wheat starch in the ingredient list, it must be followed by an asterisk explaining that the wheat has been processed sufficiently to adhere to the FDA requirements for gluten-free labelling.”
Australian and New Zealand gluten labelling laws
In Australia and New Zealand, “gluten and wheat must be declared separately in the allergen summary statement.”
On labels, allergens to be declared must appear in the statement of ingredients, in a separate but co-located summary statement beginning with the word ‘contains’ and the word ‘gluten’ must appear in the summary statement if the allergen is wheat, barley, rye, oats, or hybrids of these foods that contain gluten. The font must be bold to make it easier to identify, and not be in a font smaller than other text.
European gluten labelling laws
In Europe, “The statement ‘gluten-free’ may only be made where the food as sold to the final consumer contains no more than 20 mg/kg of gluten.”
” The statement ‘very low gluten’ may only be made where the food, consisting of or containing one or more ingredients made from wheat, rye, barley, oats or their crossbred varieties which have been specially processed to reduce the gluten content, contains no more than 100 mg/kg of gluten in the food as sold to the final consumer.”
” Oats contained in a food presented as gluten-free or very low gluten must have been specially produced, prepared and/or processed in a way to avoid contamination by wheat, rye, barley, or their crossbred varieties and the gluten content of such oats cannot exceed 20 mg/kg.”
References
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- 2.Biesiekierski JR, Newnham ED, Irving PM, et al. Gluten Causes Gastrointestinal Symptoms in Subjects Without Celiac Disease: A Double-Blind Randomized Placebo-Controlled Trial. American Journal of Gastroenterology. Published online March 2011:508-514. doi:10.1038/ajg.2010.487
- 3.Soresi M, Incandela S, Mansueto P, et al. Gynecological Disorders in Patients with Non-celiac Wheat Sensitivity. Dig Dis Sci. Published online March 7, 2020:167-174. doi:10.1007/s10620-020-06184-8
- 4.Moleski SM, Shah A, Durney P, et al. Symptoms of gluten ingestion in patients with non-celiac gluten sensitivity: A randomized clinical trial. Nutrition. Published online January 2021:110944. doi:10.1016/j.nut.2020.110944
- 5.Caio G, Lungaro L, Segata N, et al. Effect of Gluten-Free Diet on Gut Microbiota Composition in Patients with Celiac Disease and Non-Celiac Gluten/Wheat Sensitivity. Nutrients. Published online June 19, 2020:1832. doi:10.3390/nu12061832
- 6.Harris H, Afeiche MC, Terry KL, Chavarro JE, Missmer SA. Fiber and gluten intake and risk of laparoscopically-confirmed endometriosis. Fertility and Sterility. Published online September 2019:e317. doi:10.1016/j.fertnstert.2019.07.920
- 7.Sategna-Guidetti C, Volta U, Ciacci C, et al. Prevalence of thyroid disorders in untreated adult celiac disease patients and effect of gluten withdrawal: an Italian multicenter study. Am J Gastroenterology. Published online March 2001:751-757. doi:10.1111/j.1572-0241.2001.03617.x
- 8.Krysiak R, Szkróbka W, Okopień B. The Effect of Gluten-Free Diet on Thyroid Autoimmunity in Drug-Naïve Women with Hashimoto’s Thyroiditis: A Pilot Study. Exp Clin Endocrinol Diabetes. Published online July 30, 2018:417-422. doi:10.1055/a-0653-7108
- 9.Lerner A, Shoenfeld Y, Matthias T. Adverse effects of gluten ingestion and advantages of gluten withdrawal in nonceliac autoimmune disease. Nutrition Reviews. Published online November 30, 2017:1046-1058. doi:10.1093/nutrit/nux054
- 10.Nieuwenhuizen W, Pieters R, Knippels L, Jansen M, Koppelman S. Is Candida albicans a trigger in the onset of coeliac disease? The Lancet. Published online June 2003:2152-2154. doi:10.1016/s0140-6736(03)13695-1
- 11.Corouge M, Loridant S, Fradin C, et al. Humoral Immunity Links Candida albicans Infection and Celiac Disease. Naglik JR, ed. PLoS ONE. Published online March 20, 2015:e0121776. doi:10.1371/journal.pone.0121776
- 12.Columella. Published online 2017. doi:10.18380/szie.colum.2017.4.1.suppl