GABA, or Gamma-Aminobutyric Acid, is an amino acid that is considered a major inhibitory neurotransmitter found in approximately 30% to 40% of all brain synapses. It is abundant in nature and is found in unhulled rice, cucumber, green tea Kimchi and etc. In clinical study, GABA supplementation has demonstrated a wide variety of health benefits that may help to provide positive support for: Tiredness, fatigue and weakness Occasional nervousness, anxiety and panic Cognitive functions such as memory Sleep difficulty GABA is normally manufactured by the body in sufficient quantity. Although deficiencies are rare, exposure to environmental toxins and other external stressors may increase that rate at which GABA is depleted in the body. A GABA deficiency may result in muscle fatigue, nervousness, anxiety, irritability, depressed mood and sleep difficulty.