L-glutamine is the most abundant amino acid in the body. It accounts for more than 60% of the free amino acids in skeletal muscle, meaning it is highly concentrated in muscle tissue. Following intense exercise, l-glutamine levels fall significantly (by up to 50%), therefore, l-glutamine supplementation is a necessity for any serious athlete participating in physical training. It is known as conditionally essential. Grenade Essentials Glutamine is affordable, and made using the highest grade, 100% fermented l-glutamine (unflavoured), with no bulking agents added. Product Highlights L-glutamine has a number of benefits that contribute to muscle growth, performance and recovery; it is known as conditionally essential for these reasons. Relative to Muscular Health: -L-glutamine helps to prevent the breakdown of muscle tissue and improve protein metabolism. Its anti-catabolic ability is especially beneficial for those who are aiming to reduce body body fat whilst preserving muscle mass. Immune Health: -The preferred fuel source of the immune system is l-glutamine, thus, it is an effective component for immune health. Due its rapid depletion during intense exercise, supplementation of such is a must in order to maintain optimal muscle performance. Gastrointestinal Health: L-glutamine plays a crucial role in maintaining intestinal health. For any individual looking to gain muscle, lose weight or improve performance, intestinal health should be paramount. Even if eating properly and taking the advisable supplements, your results will be restricted if your body is not able to absorb nutrients efficiently. Supplementing l-glutamine contributes to optimal gut function. It is often quoted by nutritional experts that, "We are not what we eat, but what we absorb."