Used in the food industry as a flavor enhancer and nutrient supplement, particularly in low-calorie sweeteners since it is a component of aspartame. Also contributes to umami taste in some products. Plays a role in amino acid metabolism and is utilized in pharmaceuticals for infusion solutions to support protein synthesis and recovery in patients with metabolic stress. Used in nutritional supplements and sports drinks to aid energy production, reduce fatigue, and support nerve and muscle function. Also found in skincare products for its moisturizing properties, helping to maintain skin hydration. In research, it serves as a building block for peptide synthesis and in studies related to neurotransmission, as it acts as an excitatory neurotransmitter in the central nervous system.