Taurine is a naturally occurring amino acid that plays a crucial role in various physiological processes within the body. While it is often classified as a non-essential amino acid, meaning the body can produce it, dietary sources such as meat, fish, and dairy can significantly contribute to its levels. Taurine is found in high concentrations in the brain, heart, and muscles, where it supports critical functions such as neurotransmission, muscle contraction, and cardiovascular health.