Previous studies have suggested that people with schizophrenia may have lower levels of GABA in the brain. Remember that GABA is the primary calming neurotransmitter in the brain, while glutamate is the primary excitatory neurotransmitter in the brain. Newer research supports the idea of low GABA in those with schizophrenia. GABA is available as an over the counter supplement, and taking vitamin B6 supports the conversion of glutamate to GABA in the brain. If you have schizophrenia, you might consider talking to your Doctor about GABA and B6 supplements.
Karolinska Institutet. "Major research project provides new clues to schizophrenia." ScienceDaily. ScienceDaily, 14 March 2017. www.sciencedaily.com/releases/2017/03/170314081539.htm.