Glutamine is the most abundant amino acid in muscle tissue, where it plays a vital role in metabolic processes. Intense training depletes Glutamine levels, which explains why it has become such a popular and valued sports supplement.Although glutamine is present in high protein foods, such as meat and fish, it´s used as a supplement because if it´s taken just before or just after exercise, it can help maintain glutamine levels during this crucial time. This can in turn help the recovery of muscles after exercise.QUALITY GUARANTEETHis is one of the highest quality l-glutamine products on the market and is manufactured in the UK by one of the world´s largest producers of sports products.Do not take if pregnant or breast feedingRecommended daily intake: 1-2 servings per day (each serving equals 5g)