Description glutamine is found in varying amounts in most meat and fish as well as to a small extent in vegetables and pulseswhat are the benefits of l glutamineglutamine is a semi essential amino acid that the body is able to produce in small amounts however the majority of it must come from the diet and this is where l glutamine amino acids can be beneficial in your supplementation regimewho is l glutamine suitable forglutamine is for anyone engaged in a long term physical training pla