DL-Tryptophan is widely used in the food and beverage industry as a dietary supplement to enhance nutritional value. It is incorporated into protein shakes, health bars, and fortified foods to support muscle repair and growth. In sports nutrition, it aids in recovery and performance enhancement. In the pharmaceutical sector, it serves as a precursor for serotonin production, aiding in the treatment of mood disorders such as depression and anxiety, and preliminary studies suggest potential roles in alleviating migraine and chronic pain symptoms. Additionally, it is utilized in animal feed to improve growth and overall health in livestock. Its role in promoting better sleep patterns makes it a common ingredient in sleep aid formulations. In research, DL-Tryptophan is employed in studies related to amino acid metabolism and neurological functions.