Glutamine is considered a non-essential amino acid because it can be derived from glutamic acid, another member of the amino acid family. Both glutamine and glutamic acid can be found in protein-rich foods such as red meat, nuts and fish. Glutamine is particularly important for the health of the gut with the cells of the gut lining obtaining much of their growth material through utilising glutamine as a fuel. This is why, out of the 20 amino acids, glutamine, is often referred to as the 'gut restorer' amongst practitioners and is frequently recommended when the integrity of the gut wall is compromised, as is often the case in conditions caused by microflora imbalances and some chronic conditions associated with poor gut function. It is also often used for sports recovery since large quantities of glutamine are stored in our muscles where it plays an important role in repairing and building new muscle. Heavy training can deplete our glutamine stores so a supplement may help speed recovery. This supplement provides 500mg of glutamine in its 'free-form' state which means that it 100% pure and can be absorbed immediately.Our product is manufactured, tested and packed in the UK.