Gamma-aminobutyric acid (GABA) is an important neurotransmitter in the human brain. With its precursor, glutamate, the two elements are the most abundant type of neurotransmitters in the nervous system. The neurotransmitter works by blocking impulses between nerve cells located in the brain. Therefore, it is involved in decreasing the level of activity in the neurons responsible for poor mood, stress, anxiety, and insomnia. It performs such functions by preventing the overstimulation of glutamate which is the primary excitatory neurotransmitter.There are currently numerous food supplement sources of GABA. The supplements work to increase levels of the neurotransmitter in the blood even though the neurotransmitter does not cross the blood-brain barrier. Research also shows that some of the foods that have the highest content of the compound are oily fish such as mackerel and salmon. Typically, foods that contain GABA precursors (glutamate/glutamine) are also good boosters of the neurotransmitter's levels in the blood. Such foods include fish oil. This article explores the research available discussing the benefits of GABA in contemporary society.
