aurine is a type of amino acid that is considered semi-essential. This means that it is produced in small quantities by the body, however it is still required to be supplemented through some dietary means every once in a while. It is found very often in energy drinks such as Monster, highly processed iced coffee drinks, and Red Bull. Taurine is useful in dealing with muscle gain and muscle reactions making it a ular supplement for athletes. If there is not enough taurine in the body, this can cause levels of nitric oxide to be raised, which, if at a high enough level, can cause blood flow and flow of oxygen through the blood to be significantly stymied in their travel to the muscles. Taurine is derived from the reaction between methionine and cysteine when they become synthesized together. Taurine does not only add to muscle mass though, it also transports certain nutrients through the cell wall such as calcium, sodium, potassium, and magnesium. This keeps each individual cell healthy by electrically stabilizing the outer membrane using just the right amount of nutrients. Taurine allows for extra nerve impulses which better regulates muscle usage and keeps the level of ions located within a cell at a more acceptable level.