In Perspective

https://commons.wikimedia.org/wiki/File:Ajinomoto_msg.jpg After 210 years of kitchen use, authorities have yet to find hardcore evidence that warrants the banning of MSG. Glutamates (the main component in MSG) are not at all foreign or invasive to the human body.  Glutamates naturally present in food. Concentrations are very high in tomato sauces and pastes, sharp cheeses like Parmesan, black beans, kelp, seaweed, dried mushrooms, Vegemite, Marmite, fish sauce, soy sauce, oyster sauce, foods containing added Hydrolyzed Vegetable Protein (HVP), stocks cubes and concentrates, and more. Note that the body processes free (natural) glutamates and MSG the same way. Glutamates in the body are mostly resident in the human brain , which releases these neurotransmitters. Glutamates are responsible for sending signals between nerve cells. Glutamates aid learning and memory. That may very well be the reason why Glutamate Toxicity can result in headaches and even brain cell damage...