The cause of Celiac Disease (CD), also known as celiac sprue or gluten sensitive enteropathy (GSE), is still a mystery. One out of 133 people in the United States is affected with celiac disease. CD occurs in 5-15% of the offspring and siblings of a person with celiac disease. In 70% of identical twin pairs, both twins have the disease. It is strongly suggested that family members be tested, even if asymptomatic. Family members who have an autoimmune disease are at a 25% increased risk of having celiac disease.
Celiac Disease is not a food allergy - it is an autoimmune disease. Food allergies, including wheat allergy, are conditions that people can sometimes grow out of. This is not the case with Celiac Disease.