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Celiac Safety Glossary

Celiac disease

Celiac disease is a serious autoimmune disorder in which ingesting gluten — a protein found in wheat, barley, and rye — 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.

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.

Malt (Barley)

Malt is fermented barley used as a flavoring or sweetener in cereals, chocolates, and beer; it is a major source of hidden gluten that is often overlooked on ingredient lists.

📚Sources & Citations

• •Celiac Disease Foundation — celiac.org — Comprehensive research and patient resources on celiac disease
• •Beyond Celiac — beyondceliac.org — Research-driven celiac disease advocacy and resources
• •GFCO (Gluten-Free Certification Organization) — gfco.org — Certification standards (<10 ppm)
• •FDA Gluten-Free Labeling — fda.gov — Federal regulations for <20 ppm labeling

Content reviewed and fact-checked by our clinical & nutrition team. Last updated July 2026.