<prompt> Which one of the following is the common cause of chronic pancreatitisObesityGall stonesPolyposisChronic alcoholism  <response>: D Chronic alcoholism Causes Most common cause in the Western world of chronic pancreatitis is excess alcohol ingestion. Gallstone-associated pancreatitis is predominantly acute or relapsing-acute in nature, and some cases of chronic pancreatitis are of undetermined or idiopathic origin. A few are inherited or autoimmune in nature or secondary to Sphincter of Oddi Dysfunction SOD. Other less frequent causes include chronic steroid and or anti-inflammitory use. In up to one quarter of cases, no cause can be found. Cystic fibrosis is the most common cause of chronic pancreatitis in children. In other parts of the world, severe protein-energy malnutrition is a common cause. 