America's Compounding Center says the following about Glutamine:
"Glutamine is a naturally occurring amino acid that is primarily produced and stored in the muscles. It helps the body produce proteins and protects the lining of the stomach. Glutamine also acts as an antioxidant and helps to protect and remove harmful waste products from the liver. Glutamine supplements are used to treat short bowel syndrome, inflammatory bowel disease, inflammation of the mouth associated with chemotherapy, to prevent nerve damage due to chemotherapy agents, to improve wound healing, and to treat glutamine deficiency in patients with mitochondrial disease and other conditions. Dietary sources of glutamine include meats, dairy products, and uncooked spinach. Glutamine is generally given orally as 5 grams (in powder, tablet or capsule form) up to six times daily, for a total daily dose of up to 30 grams per day. Patients should mix the powder with cold or room temperature liquids, as heat inactivates glutamine. Side effects associated with glutamine supplementation include rash, stomach discomfort, nausea, vomiting, swelling in the arms and legs, cough, fever, chills, and liver and kidney problems."