Taurine is a sulfonic amino acid that plays a crucial role in numerous biological processes. It is synthesized in the human body from two other essential amino acids, methionine and cysteine, with the aid of vitamin B6. Taurine is particularly abundant in the brain, where it contributes to the regulation of water and mineral salts, as well as to neurological function and development. In the retina, it is involved in visual processes, and in muscles, it helps regulate calcium and supports muscle function. Additionally, taurine is essential for bile formation, which is vital for digestion and lipid absorption, as well as cholesterol management in the body. In infants, taurine is added to baby formulas because it is crucial for the development and maturation of the central nervous system and the retina. Although the body can produce taurine, its presence in breast milk underscores its importance in the diet of young children. Studies have also suggested that taurine may have antioxidant effects, helping to protect cells against oxidative damage.