Bile acids are steroid acids found predominantly in the bile of mammals. Bile salts are bile acids compounded with a cation, usually sodium. In humans, the salts of taurocholic acidand glycocholic acid (derivatives of cholic acid) represent approximately eighty percent of all bile salts. Bile acids, glycine and taurine conjugates, and 7-alpha-dehydroxylated derivatives (deoxycholic acid and lithocholic acid) are all found in human intestinal bile. An increase in bile flow is exhibited with an increased secretion of bile acids. The main function of bile acid is to facilitate the formation of micelles, which promotes processing of dietary fat
Some examples that would be considered an acid: sulfuric acid, nitric acid, hydrofluoric acid, perchloric acid, boric acid, periodic acid, salicilic acid, stearic acid, citric acid, oxalic acid, etc.