| Section2 = | Section3 = | Section4 = | Section5 = | Section6 = | Section7 = | Section8 = }} Taurine, or 2-aminoethanesulfonic acid,'s an organic acid. It's also a major constituent of bile and can be found in the lower intestine and in small amounts in the tissues of many animals, including humans. Taurine's a derivative of the sulfur-containing (sulfhydryl) amino acid, cysteine. Taurine's one of the few known naturally occurring sulfonic acids. Taurine's named after the Latin taurus, which… (More on Taurine)