The Flex Wheeler Glutamine is a dietary supplement that contains glutamine, a semi-essential amino acid. This amino acid can be produced by the body and plays a key role in enhancing the immune system, as well as supporting brain and digestive health. Glutamine also contributes to providing energy to the cells by boosting the process of glucose and other amino acids' production, which are critical for protein synthesis. The Glutamine powder is available in a 300g package, offered unflavored so that it can be easily added to your diet.