Low-glutamate diet linked to brain changes and migraine relief in veterans with Gulf War Illness

Veterans with Gulf War Illness experienced significant improvement in migraine symptoms after following a diet low in glutamate, a component of flavor-enhancing food additives commonly found in processed foods, per new research presented by Georgetown University and American University scientists. Brain scans also revealed decreased cortical thickness in patients on the diet—providing evidence, for the first time, that the improvement in symptoms was linked to measurable changes in the brain.

Source: https://medicalxpress.com/news/2025-11-glutamate-diet-linked-brain-migraine.html