See, That’s where I get in trouble. You need a detail. Msg turns into ? I’ll have to go with the bigger picture that I do understand. lol. Monosodium glutamate, and nutrasweet/ aspartame (oops those might be brand names) have properties that are called excitotoxins. These things go in and effect brain neural cells like jiffy popcorn kernels on the campfire.( Sorry I think in pictures!) The neural cells excite themselves to death. EXCITOTOXINS THE TASTE THAT KILLS is a book that was written by a DR. Dianalike doctor who’s name I can’t remember. His father had Parkinsons and he became driven like Dr. Diana to research the disease connections that effected his family. The book made the connection for me regarding brain fog after eating. Then I learned that Mayo clinic was recommending that MS patients and I think stroke or neuro patients avoid the sweetners in diet foods. My son and I have nearly immediate neurological symptoms if we ingest a “diet” food. My balance goes immediately. His tremors worsen and I cannot work through a number based or direction involved question. It is as if that part of my brain has been disconnected. It used to be so bad that we would get severe headaches and I would have trouble breathing. I almost always had flushing and hives. My son had agitated irritated cranky behavior..very unlike him. Very much like I can get if my sugar gets too low.SOOOOOO as I have begun exploring mast cell issues I was wondering if there was a connection. Your word “trigger” was perfect. I’m not sure who to ask or how to find out. This is where I loose it..those scientific details..I’m always missing one piece of the details so can’t ask a direct simple question. If you can translate the question for me I will start digging!Thanks again for offering the space for a research junkie like me to brainstorm.