The human organ responsible for storing bile is the gallbladder. Located beneath the liver, the gallbladder plays a crucial role in digestion by concentrating and storing bile produced by the liver. During meals, especially those high in fat, the gallbladder releases bile into the small intestine to aid in the emulsification and digestion of dietary fats. While some people can live without a gallbladder, as the liver still produces bile, this organ significantly contributes to effective digestion and nutrient absorption in the gastrointestinal tract.