L-Glutamine, along with glucose, is one of the principle fuels for the brain cells. It stimulates mental alertness, improves intelligence, normalizes physical equilibrium, detoxifies ammonia from the brain, improves and soothes erratic behavior in elderly patients, improves the ability to learn, aids in retaining and recall in memory, helps with behavioral problems and autism in children, stops sugar and alcohol cravings, may improve IQ in mentally-deficient children, enhances peptic ulcer healing and may be used to treat schizophrenia and senility.