Gamma-aminobutyric acid (GABA) is a naturally occurring amino acid. GABA is a neurotransmitter, which means it delivers a message through your nervous system from one neuron to another. GABA, in particular, is an inhibitory neurotransmitter, so it blocks other messages and controls the speed at which information travels through the nervous system. One study found that taking a GABA supplement led to a 400% increase in HGH at rest and a 200% increase following exercise ( 40 ). GABA may also increase HGH levels by improving your sleep, since your nighttime growth hormone release is linked to sleep quality and depth ( 41 , 42 ). GABA (Gamma-Amino Butyric Acid) is an inhibitory neurotransmitter that has a calming and relaxing effect in the brain. It acts like the brakes in a car, to where it slows down and/or stops brain activity on an as-needed basis to help us function better. When we are low in this neurotransmitter, our brain continues to hit the gas Since GABA does not cross the blood-brain barrier, supplementation does not lead to its transportation from the bloodstream into the blood, which is why using GABA supplements does not cause any noticeable nervous system inhibition. However, research has shown that five gram doses of GABA can increase growth hormone levels by a significant Why You Shouldn't Take GABA Supplements. If you want to increase your GABA levels to combat anxiety taking GABA supplements is not a good way to do it; are the problem is the GABA molecule is too big to pass through a healthy blood-brain barrier so little if any of the GABA from supplements should reach your brain. GABA supplement studies are separately outlined where available. There is insufficient evidence to support the use of GABA supplements for any health condition. Despite a lack of evidence, some athletes use GABA supplements to increase sleep quality since a lack of sleep harms performance. Others use valerian to improve sleep. .

do gaba supplements increase gaba