Taurine is a sulfur-containing amino acid that is crucial for various physiological functions in the body. It plays a role in bile salt formation, the regulation of calcium levels in cells, and the development and function of the central nervous system. Taurine is found in high concentrations in the heart, brain, and skeletal muscles, and it is often included in energy drinks and dietary supplements due to its potential benefits for exercise performance and overall health. Unlike most amino acids, taurine is not used to build proteins but is instead involved in several important biochemical processes.