Dr. Russell Blaylock, a retired neurosurgeon, and author of the book Excitotoxins: The Taste That Kills , gives a talk on compounds called excitotoxins. Excitotoxins such as monosodium glutamate (MSG), hydrolyzed vegetable protein, and aspartame are being added to almost all processed foods. There is a substantial amount of evidence that excitotoxins play a critical role in the development of several neurological disorders.