Coeliac disease (CD) is a small bowel disorder caused by proteins in wheat, rye and barley. These proteins are called ”gluten”. Because of some genetic factors, the small bowel of a coeliac does not tolerate gluten, upon which an immunological inflammation occurs damaging the villi in the small bowel. Due to the damaged villi, the bowel of a coeliac patient cannot utilise nutrients normally. This may lead to a wide variety of symptoms or signs of malabsorption