L-Tryptophan is widely used in the food and beverage industry as a dietary supplement to support mental health and improve sleep quality. It serves as a precursor to serotonin, a neurotransmitter that regulates mood, and melatonin, which aids in sleep regulation. In the pharmaceutical sector, it is incorporated into medications and supplements to address conditions like depression, anxiety, and insomnia. Additionally, it is added to animal feed to promote growth and overall health in livestock. Its role in protein synthesis also makes it valuable in nutritional products aimed at muscle recovery and maintenance.