Gastroenterology includes coeliac disease and haemochromatosis. Coeliac disease is a common but under diagnosed well-defined autoimmune disease, involving a heightened immune response to ingested gliadin and related proteins of wheat, rye and barley. Hereditary Haemochromatosis (HH) is an autosomal recessive inherited disorder resulting from an error of iron metabolism, which leads to progressive iron loading of liver, pancreatic and heart cells.