L-Glutamine is the most abundant free-form amino acid in muscle, comprising over
50% of the free-amino acids. During and after intense training, large amounts of
glutamine are released from muscle tissue. The deficit created by this triggers the
conversion of other amino acids into glutamine, which is a catabolic (muscle wasting)
action. Supplementation with L-Glutamine helps to prevent muscle wastage caused
by this natural recovery process.
Glutamine has become increasingly prominent as new studies reveal its unique
contribution to protein synthesis, muscle growth, anti-catabolism (preventing muscle
tissue breakdown) and growth hormone elevating effects. Glutamine concentrations
fall remarkably after training within as little as 30 minutes, and remain low until
complete recovery occurs, up to / as long as 5–7 days, resulting in decreases in
strength, stamina and recovery. Supplementing with L-Glutamine can help maintain
and build muscle tissue. The higher the muscle glutamine levels you can maintain,
the less chance you have of falling into catabolism and the faster muscles will recover
and grow.