Now GABA 750 mg Capsules For Neurotransmitter Support provides you with 750 mg of this beneficial amino acid per serving, making it easier than ever to add some calm to your busy day. Too much stress is linked to poor sleep, a weaker immune system, and a higher risk of depression, among other things. GABA (gamma-aminobutyric acid) is a non-protein amino acid that functions as a neurotransmitter in the human brain. GABA is a soothing amino acid that plays an important role in helping with mild, occasional stress, making it an essential addition to any routine. GABA is naturally produced in the body and its presence within the central nervous system may help promote relaxation and ease nervous tension. GABA is known for producing a calming effect. It’s thought to play a major role in controlling anxiety, stress and fear. Decreased GABA levels are associated with several neurological and mental health conditions, as well as other medical conditions. GABA as a neurotransmitter, blocks impulses between nerve cells in the brain. GABA is essentially your body’s “calm down” signal, pumping the brakes on overexcited neurons, contributing to an overall relaxing effect.