Taurine is a derivative of L-Methionine >>>>> L-Cysteine >>> Taurine. Taurine synthesis occurs in the liver and the brain. Concentrates of Taurine have also been found in extremely high concentrates in the brain, intestines and skeletal muscles.
Most amino acids have a L- or D- configuration, which means the molecule when put into a solution will rotate light either to the left (Levo=L) or the right (Dextro = D). Taurine does not polarize light and consequently does not have an L- or D- configuration.
It has been established that taurine concentration is extraordinarily high in the developing brain, and falls of sharply thereafter. This occurs at a time when the presumed synthetic pathway, via cysteine sulfinate decarboxylase, has little measurable activity, suggesting that a dietary source of taurine is essential. Moreover, it has been found that high concentrations oftaurine are present in breast milk, which reflects the important need for taurine by the growing animal.

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