Proteins are made up of amino acids – some are essential & some are classed as non-essential. Although Glutamine is a non-essential amino acid, it becomes conditionally essential at certain times, especially during stress or illness. It plays a large part in maintaining the health of the digestive tract & is particularly useful for those who are physically active.• Also available as Glutamine Powder • Glutamine is the most abundant amino acid in your body & is found within many body systems • It becomes conditionally ‘essential’ when your body is physically or mentally challenged • Ideal during stressful times or convalescence or if physically active