What Are the Causes Behind Stool That Is a Very Light Tan Color?

Very light tan colored stool is an indication that the biliary system, the liver, the gallbladder and the bile ducts are not functioning properly, according to the Digestion Relief Center. The problem is typically related to an obstruction that prevents bile from being able to breakdown the fats in the small intestine; however, it can also be related to the stomach. If the stomach does not produce sufficient quantities of stomach acid, it will be unable to trigger the release of bile.