BSN Glutamine DNA is a raw glutamine powder created by BSN that is an ideal supplement to enhance your muscle building and recovery capabilities. While supplementing glutamine, you are taking advantage of the anti-catablic affects that this amino acid has, meaning that muscle break down is reduced as a result of intense training. Glutamine can be found in other supplements, however supplementing with the powder alone is needed in order to replenish dimished glutamine stores in the body.