What is celiac disease?
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is celiac disease?

### Response:

Celiac disease is an autoimmune disease that is hereditary, not to be confused with gluten intolerance. Celiac disease is an immune response to consuming gluten, a protein found in barley, rye, and wheat, which impacts nutrient absorption and immunity when consumed.