I have simple partial seizures. I have to stay away from nutrasweet/aspartame, as well as MSG (monosodium glutamate), and its other forms, such as protein isolate, hydrolyzed protein, extractives, and protein concentrates, whether in the form of soy, vegetable protein, yeast extract, etc. These things all cause seizures in me, even on medication. I find that a whole foods diet, no fast foods or canned, frozen or prepared foods, is the key to keeping me okay. I have to read lots of labels to make sure the foods are okay. It sounds overwhelming, but once I got to know the brands I could eat, it was easy. You would be surprised how many products in grocery stores have these ingredients. Wishing you well!