A lot of people eat a gluten-free diet. For people with celiac disease, it’s a must.
About 3 million Americans have celiac disease, an autoimmune disorder that’s triggered when they eat gluten. Gluten is a protein found in wheat, barley, rye, and other grains. It is the protein that makes dough elastic and gives bread its chewy texture.
But when someone with celiac disease eats something with gluten, their body overreacts to the protein and damages their villi, which are very small finger-like projections found along the wall of the small intestine.
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