Glutamine has recently been the subject of significant scientific interest. A growing body of evidence suggests that during certain periods of stress, the body may require more glutamine than it can produce. Under these circumstances, glutamine can be considered a "conditionally essential" amino acid. Glutamine is involved in maintaining a positive nitrogen balance (an anabolic state) and supports rapidly growing cells (immune system lymphocytes and intestinal enterocytes). Furthermore, glutamine is a regulator of acid-base balance and a nitrogen transporter. This double-strength 1,000 mg dose is ideal for those undergoing more intense training cycles or individuals under higher stress.