Glutamine is produced in the muscles and is distributed by the blood to the organs that are in need.
Glutamine has shown to help gut function, the immune system, and other essential processes in the body, especially during times of stress. It is also important for providing "fuel" (nitrogen and carbon) to many different cells in the body. Glutamine is needed to make other chemicals in the body such as other amino acids and glucose (sugar).
Glutamine is a non-essential amino acid, and it is extremely important for recovery. Research shows that glutamine is depleted from high-intensity exercise. It needs to be replenished to maximize muscle glycogen and improve immune system function.
Glutamine is important for all types of exercise including weightlifting, high-intensity and high-impact. Since exercise can depress the immune system, it is important to supplement with Glutamine so you are not preventing gains in strength and muscle.