Difference Between Glutamic Acid and Glutamine Amino acids are a team And they work better together than alone We've got options like Amino Acid Blend, L Arginine, L Carnitine, L Lysine, and L Glutaminebut the real magic happens when they're combined Perspectives approaches using dietary glutamine and L carnitine toward enhancement of reproductive performance of breeding pigeons and coordination of Genes controlling nutrients transport, lipogenesis and myogenesis in hatched squabs ScienceDirect L Glutamine