L-Glutamine is the most common amino acid found in your muscles. Over 61 % of skeletal muscle is L-Glutamine of which 19% is nitrogen, making it the primary transporter of nitrogen into your muscle cells. L-Glutamine plays a key role in protein synthesis, cell volumising, and anti catabolism. During intense training, L-Glutamine levels are greatly depleted, which decreases strength, stamina and recovery. It can take up to 6 days for levels to return to normal. Studies show that L-Glutamine supplementation can minimise muscle breakdown and improve protein metabolism and is especially useful in reducing body fat without losing any muscle. L-Glutamine is needed throughout your body for optimal performance, with recent studies showing that taking just 2 grams of L-Glutamine daily can increase growth hormone levels by 400%. L-Glutamine transports ammonia, the toxic metabolic by-product of protein breakdown, to the liver, where it is converted into less toxic urea and then excreted by the kidneys