• Feb 17, 2026 Excitotoxins The Taste That Kills arkinson’s. Headaches and Migraines: Some individuals report headaches, flushing, or 2. numbness after consuming MSG-rich foods. Seizures: In sensitive individuals, excitotoxins may trigger seizures or exacerbate 3. epilepsy. Other Health Concerns Beyond the brain, excitotoxins might influence: M BY Madelyn Metz