Excitotoxins linked to MS? Where have we heard this before?

There's an ingredient in our food that scientists are beginning to suspect could be a cause of auto-immune disorders such as multiple sclerosis and Grave's disease. Excitotoxins - amino acids that, quite literally, overexcite the nervous system, and cause neurological damage - may be a bigger culprit than anyone has suspected, and often they’re a hidden ingredient in the food we eat. The two most common excitotoxins are the artificial sweeteners monosodium glutamate (MSG) and aspartame (Nutrasweet), but they are also hidden ingredients labeled as hydrolyzed proteins, hydrolyzed oat flour, sodium caseinate, calcium caseinate, autolyzed yeast, and yeast extract. Soybean extracts are also rich in glutamate (the more natural form of MSG). Researchers such as neurosurgeon Russell Blaylock and others have suspected for a long time that excitotoxins can cause auto-immune disease, and their concerns have recently been supported by a study from the Albert Einstein College of Medicine in New York. Townsend Letter, 2008; 304: 28-29.