Taurine, while not an actual part of the human body’s structural proteins, it is one of the highest numbering amino-acids. Taurine is found in the heart, the skeletal muscles, white blood cells, and the nervous system. When the body engages in extreme physical activity, it no longer will be able to produce the necessary amounts of Taurine. This may lead to a Taurine deficiency under certain conditions. Taurine also is important for brain function. Taurine has demonstrated itself to be a safe and beneficial supplement and is mostly found in meat and fish. Vegans may consider supplementing, but unless there are health issues that necessitate high levels of Taurine, the adult body should manufacture sufficient amounts (as long as vitamin B6 is present).