The presence of undigested fat in the feces. This may be the result of failing to inoculate fatty foods with enough surfactant (biliary “soap”) to digest them, the failure of the lower small intestine to absorb them, or simply too much fat for even normal digestion to handle. Sometimes this can indicate liver, gall bladder or lipid metabolism diseases. Usually the causes are subclinical and treatable with less invasive approaches...like herbs.