Quick Answer
Use iHerb discount code KHQ339 at checkout.
Dietary SupplementFree-FormNon GMO ValidatedSuitable for Vegetarians and VegansL-Glutamine a free-form amino acid can be converted to glutamic acid. Glutamic acid is a usable energy source for the brain and a precursor to the important inhibitory neurotransmitter GABA (gamma-amino butyric acid). L-Glutamine also plays an important role in ammonia disposal.