GABA is available in tablets,capsules and in powdered form,and has been applied to all kind of healthy products ,medicine. What is Gamma ... acid through glutamate decarboxylase, GABA, a kind of natural non-protein amino acid, is an important neurotransmitter of the central ... been applied to all kinds of tea beverages, dairy products, frozen food, wine, fermented food, bread, soup and other healthy ...