更新1:
@Jeremy See thats what I mean. People have an unfound hatret towards MSG but have no idea what it is. It is simply a seasoning that enhances foods and gives it that Umami taste that is found in mushrooms and seaweed and stuff like that. The umami taste also comes in Soya Sauce due to the fermentation process. http://en.wikipedia.org/wiki/Monosodium_glutamate The Aforementioned Link will be your best informer. People have tried for decades to find a fault with it but every time they have experimented with it there has been nothing conclusive.
更新2:
*hatred