According to some respected scientific studies, glutamine can be considered a conditionally essential amino acid, aiding the disease fighting cells of your immune system and balancing overall levels of acid in your body. NOW L-Glutamine is a pure, natural form of this important element, helping your body during stress filled conditions, and transporting vital nitrogen for fast absorption. It's a wonderful supplement that has been used successfully by professional athletes for help during arduous workouts, and also for regular people who just want an additional boost to their program of diet and exercise.