Did you see this part:
Precautions: Even though glutamine is nontoxic, it is recommended that you consult a health practitioner before using high doses. Diabetics, cancer patients, patients with advanced liver disease, and those with neurological diseases including stroke and epilepsy should use glutamine only with the permission of their doctor.

My daughter is also on meds for epilepsy and I'm a little paranoid about supplements causing seizures (past experience). Other than that it sounds like a wonder supplement! I think I'm going to try it myself and see if it helps with cravings and energy level.