What is gluten? What happens to people who are gluten sensitive and eat food items containing gluten?

Gluten is a group of proteins, primarily gliadin and glutenin, found in wheat, barley, rye, and their derivatives like triticale. It acts like a "glue" that gives dough its elastic texture, helping bread rise and hold shape.

What Happens in Gluten Sensitivity

People with non-celiac gluten sensitivity (NCGS) experience digestive upset, fatigue, brain fog, joint pain, or headaches within hours to days of eating gluten. Unlike celiac disease (an autoimmune attack damaging the gut lining), NCGS doesn't cause intestinal harm but triggers inflammation via immune responses.

Symptoms often mimic IBS: bloating, diarrhea, or constipation, resolving on a gluten-free diet. About 6-13% of people may have NCGS, diagnosed by symptom relief after elimination (not blood tests).

Key Differences by Condition

Condition Reaction to Gluten 
Celiac Disease Autoimmune; villi damage, nutrient malabsorption.
Wheat Allergy IgE-mediated; hives, anaphylaxis (immediate).
NCGS Intolerance; gut-brain symptoms, no biopsy damage.

Avoid self-diagnosis—test for celiac first. Most tolerate gluten fine; unnecessary avoidance risks fiber/nutrient shortfalls.

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