Taurin is a naturally occurring compound found in various tissues of the body, particularly in the brain, heart, and muscles. It is classified as an amino acid, although it is not used to build proteins like other amino acids. Taurin plays a crucial role in several biological processes, including bile salt formation, osmoregulation, and the modulation of calcium levels in cells. Taurin is commonly found in animal-based foods, such as meat and fish, and is also available as a dietary supplement. It is often included in energy drinks due to its potential benefits for physical performance and mental focus. While generally considered safe, excessive intake may lead to adverse effects.