But what do bile salts have to do with cholesterol? The answer is in the name. Cholesterol comes from the Greek words chole (bile) and stereos (solid). Cholesterol was first discovered in gall stones. Bile, which is stored in the gall bladder, is the body’s transport medium for fats and cholesterol. BSH allows bacteria to alter bile to make it work less efficiently. The cholesterol and fat dissolved in bile can then no longer be absorbed by the body and they end up, to put it bluntly, down the toilet.