We used to think of "The MSG Syndrome" as a manifestation of allergy, so any health hazards were limited to those unfortunate folks with an obvious reaction. Now, MSG is recognized as a neurotoxin and we know that it acts on the body like a drug. Reactions to MSG are essentially dose-related drug reactions, and everyone will react to it at some dose. Therefore, whether we recognize it or not, an MSG-contaminated food supply is a health problem that impacts every one of us. It is estimated that about 25-30% of the world's population experience at least unpleasant symptoms from ingesting MSG.