? L-Glutamine is a pure L-glutamine food supplement obtained by natural fermentation (Kyowa Quality®?), totally vegetarian and supported by the highest manufacturing standards. It is a pure and natural form of L-glutamine, for better absorption by the body. Glutamine is one of the 20 amino acids involved in the composition of proteins. It is a non-essential amino acid, which means that the body can synthesize it from amino groups present in food. It is the most abundant amino acid in human muscles (reaching almost 60% of the amino acids present). How to use Half or a measuring spoon or following the recommendations of an expert, dissolved in water.