... glutamic acid through glutamate decarboxylase, GABA, a kind of natural non-protein amino acid, is an important neurotransmitter of the ... discomfort8,The good of GABA Applications of GABA The natural GABA has been internationally recognized as the 21st century' ... , beverages and milk products. 3. as the natural ingredients used in coffee, chocolate, apple juice, cocoa, yogurt, milk sugar, butter, toast, ...