Why not use GABA instead of L-Glutamine?
While l-glutamine is an all-natural product, an ingredient by the name of GABA is a synthetic product that increases calm in the neurotransmitter by the same name. The problem with using this synthetic product is that your body responds to it like it would any other external chemical source (See Addiction); it increases the activity of the neurotransmitter gamma amino butyric acid, but does nothing to actually build or replenish it. The only way to naturally build the brain chemical GABA is through nutrition or through the use of the amino acid l-glutamine. People who are taking the product GABA will get a temporary calm, but will eventually need to change to l-glutamine to rebuild the GABA levels naturally. Always remember, before any nutritional supplement, including amino acids, consult your health care professional first.