Human livers make about three cups per day of bile from about half the cholesterol we make each day through a complex series of reactions within the liver and the P450 enzyme pathways. Bile is stored in the gallbladder to be used for digestion of fats and detoxification. Within the bile there might be toxins like heavy metals, bilirubin, and hemoglobin from old red blood cells. The gall bladder is really a reservoir of bile for when you eat but even for those people without a gall bladder, bile production continues in the liver and is emptied directly into the small intestine throughout the day. Bile is so important that the intestinal tract recycles 95% of it, yet because of excess stress and dietary insults, many of us are deficient in bile acids.