γ-Aminobutyric acid (GABA) is widely used in the pharmaceutical and nutraceutical industries due to its role as a major inhibitory neurotransmitter in the central nervous system. It is commonly incorporated into dietary supplements aimed at promoting relaxation, reducing stress, and improving sleep quality. GABA is also utilized in the formulation of anti-anxiety medications and muscle relaxants, as it helps to calm neuronal activity and reduce overstimulation in the brain. In the food industry, GABA is added to functional foods and beverages to enhance their health benefits, particularly in products designed to support mental well-being. Additionally, GABA is being researched for its potential role in managing conditions such as hypertension, epilepsy, and mood disorders, making it a versatile compound in both medical and wellness applications.