SOURCE NATURALS - L-Glutamine Powder - 16 oz. (453.6 g)DESCRIPTION L Glutamine, a free form amino acid, can be converted to glutamic acid. Glutamic acid is a precursor to the important inhibitory neurotransmitter GABA (gamma aminobutyric acid). L Glutamine also plays an important role in ammonia disposal. DETAILS Package Description: 453. 59 gm Serving Size: 1 2 Teaspoon (approx. 2 g) Number of Servings: 223 FACTS Serving Size: 1 2 Teaspoon (approx. 2 g) Servings per Container: 223 Ingredients: Amount Per