What is Glutamine Powder Glutamine powder is a powdered, nonessential amino acid, glutamine, which is important in the metabolic process. Glutamine is important in DNA and RNA synthesis. N-Acetyl L-Glutamine is an acetylated analog of L-Glutamine. N-Acetyl L-Glutamine is an amino acid that is produced naturally by the body. It can also be found in foods, such as dairy products, meat and eggs. N-Acetyl L-Glutamine plays an important part in metabolism, immune health and liver health. Glutamine powder is most commonly used by athletes and bodybuilders to help boost exercise endurance and to aid in recovery.* N-Acetyl L-Glutamine may be used by endurance athletes as an aid in recovery from exercise and by those who are trying to lose weight because it helps the body metabolize fat more efficiently.* Glutamine powder also supports immune function, contributes to healthy metabolic function, and benefits gut and digestive health.* This product is in powder form. It is pure and free from fillers or additives.