http://en.wikipedia.org/wiki/Monosodium_glutamate#Health_concerns http://en.wikipedia.org/wiki/Monosodium_glutamate#Health_con... On one hand most of the linke

http://en.wikipedia.org/wiki/Monosodium_glutamate#Health_concerns http://en.wikipedia.org/wiki/Monosodium_glutamate#Health_con... On one hand most of the linked studies were likely paid for by food companies. On the other hand, considering the wide variety of sources that MSG averse people don't react to, claims that it's psychosomatic seem fairly reasonable.