Gamma-Aminobutyric Acid, commonly known as GABA, is a non-proteinogenic amino acid that functions as the primary inhibitory neurotransmitter in the mammalian central nervous system. It is found naturally in fermented foods such as kimchi, tempeh, and certain teas.
In the food and supplement industries, GABA is increasingly popular as a functional ingredient for stress relief and relaxation products. It is produced commercially through microbial fermentation using Lactobacillus or enzymatic decarboxylation of L-glutamic acid. GABA's excellent water solubility and mild taste profile make it highly compatible with beverages, confectionery, and supplement formats.