What is glutamine?
a crystalline amino acid occurring in proteins; important in protein metabolism Scientifically speaking, glutamine is one of the 20 amino acids formed by the human body. Glutamine is considered a non-essential amino acid because it can be derived from glutamic acid, another member of the amino acid family. Both glutamine and glutamic acid can be found in protein-rich foods such as beans, red meat, nuts and fish. The body uses glutamine to improve mental function, control blood sugar levels and maintain muscle mass, among other applications.