Glutamine is the most abundant free amino acid in the body. It plays a role in the functioning of the immune system and the digestive system. It is also popular with people who exercise to take following a workout. Glutamine is used to make other amino acids and chemicals in the body. The powder form enables a flexibility of intake. Note: This product is not intended to diagnose, treat, cure, or prevent any disease, nor should supplements be used as a substitute for a balanced diet. Not intended for pregnant/breastfeeding mothers or children under 18. Do not exceed the recommended dose.