The Celiac's Guide to the Low-FODMAP Diet
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Still bloated on a strict gluten-free diet? You might have SIBO or IBS alongside celiac disease. Discover how the Low-FODMAP diet can finally give you relief.
Still bloated on a strict gluten-free diet? You might have SIBO or IBS alongside celiac disease. Discover how the Low-FODMAP diet can finally give you relief.
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โKey Takeaways
When "Gluten-Free" Isn't Enough
You were diagnosed with celiac disease. You threw out all the wheat, bought new cutting boards, and rigorously scan every label. But six months later, you still look six months pregnant with bloat after every meal.
What is going on?
It is highly likely that your damaged intestines have developed a secondary issue: IBS (Irritable Bowel Syndrome) or SIBO (Small Intestinal Bacterial Overgrowth).
When your villi are damaged by celiac, the environment in your gut changes, allowing bacteria to overgrow in the small intestine. These bacteria feast on certain fermentable carbohydrates, producing massive amounts of gas, bloating, and pain.
The treatment for this is the Low-FODMAP diet.
What are FODMAPs?
FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols.
These are specific types of short-chain carbohydrates and sugar alcohols that are poorly absorbed by the body.
High-FODMAP foods include:
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Combining GF and Low-FODMAP
Since you are already gluten-free, you have knocked out a massive source of Oligosaccharides (wheat). But you now have to navigate the rest of the high-FODMAP triggers.
The Hidden Danger in GF Replacement Foods
Many celiacs who start a GF diet rely heavily on processed GF snacks, breads, and pasta. These are often packed with high-FODMAP ingredients:
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How to Eat GF & Low-FODMAP
The Low-FODMAP diet is NOT meant to be a forever diet. It is a 2-6 week elimination phase, followed by a reintroduction phase to test which specific carbs trigger your symptoms.
Safe GF/Low-FODMAP Staples:
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The Mental Challenge
Doing this diet requires cooking almost all of your meals from scratch. Most restaurant marinades, sauces, and dressings contain garlic and onion powder.
If you must eat out, order plain grilled protein (salt and pepper only) with a baked potato and steamed spinach.
The Bottom Line
If a strict GF diet isn't resolving your symptoms, ask your gastroenterologist about SIBO testing or trying a Low-FODMAP elimination diet.
Chef's Note: When shopping for Low-FODMAP GF products, look for the Monash University Low FODMAP Certified logo. Fody Foods makes incredible Low-FODMAP salsas, marinades, and garlic-infused oils that are entirely safe for celiacs.
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RX Bars Variety Pack
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As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. Prices and availability are captured periodically and may change โ the price shown on Amazon at checkout applies.
Celiac Safety Glossary
- Celiac disease
- Celiac disease is a serious autoimmune disorder in which ingesting gluten โ a protein found in wheat, barley, and rye โ triggers an immune response that damages the small intestine's villi, affecting approximately 1 in 100 people worldwide according to the Celiac Disease Foundation.
- Gluten
- Gluten is a family of storage proteins (prolamins and glutelins) found naturally in cereal grains like wheat (including varieties like spelt, kamut, and farro), barley, and rye, which acts as a binder to give food elasticity and shape.
- Gluten-free certification
- Gluten-free certification, such as the GFCO (Gluten-Free Certification Organization) seal, verifies that a product contains fewer than 10 parts per million (ppm) of gluten โ stricter than the FDA's 20 ppm threshold for "gluten-free" labeling.
- Avenin (Oats)
- Avenin is a protein found in oats that is structurally similar to gluten. While most celiacs can tolerate pure, uncontaminated oats, a small percentage of celiacs react to avenin itself.
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About the Author
Sarah Mitchell
Lead Content Writer & Nutritionist, B.S. Nutrition Science
Sarah was diagnosed with celiac disease in 2018 and writes evidence-based guides combining clinical nutrition knowledge with 6+ years of personal gluten-free living experience. All health content is medically reviewed by our advisory team.
Meet our full team โMedical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult your physician or a registered dietitian before making dietary changes related to celiac disease or gluten sensitivity. Read full disclaimer.
๐Sources & Citations
- โขCeliac Disease Foundation โ celiac.org โ Comprehensive research and patient resources on celiac disease
- โขBeyond Celiac โ beyondceliac.org โ Research-driven celiac disease advocacy and resources
- โขGFCO (Gluten-Free Certification Organization) โ gfco.org โ Certification standards (<10 ppm)
- โขFDA Gluten-Free Labeling โ fda.gov โ Federal regulations for <20 ppm labeling
- โขCheck Gluten Community โ 41,000+ celiacs โ First-party data from community feedback and AI label scans
Content reviewed and fact-checked by our clinical & nutrition team. Last updated July 2026.
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