Found in many processed foods
We know through many studies that the effect of excitotoxins, especially MSG, is cumulative.
Excitotoxins kill brain cells. They have been linked to behavioral problems in children, to macular degeneration, and to a host of other symptoms.
The amount of MSG in our food has increased dramatically since 1960, from 12 grams per person per year to 500 grams in 2000.