The gallbladder is a part of the biliary system, made up by the liver, gallbladder, and associated ducts. This system is needed for the production, storage, and secretion of bile. Bile is a thick liquid that is green, brown or yellow in color. It is produced by the liver and is used to help with the digestion of fats. During fatty meals, bile moves from the liver directly to the small intestine. However, when food has not been ingested, the gallbladder becomes a bile storage. Gallstones are a common gallbladder disorder. Gallstones range in size from as small as a grain of sand to as large as a golf ball. Some people develop just one gallstone, while others develop many gallstones at the same time. There are some foods that people should avoid to protect the gallbladder. Food high in fat, trans fats, processed, greasy, oily or fried should be totally avoided.