|>>|| No. 13562
Mostly better science I think.
People are better educated about the origin of the idea of chinese food syndrome, which was basically an anonymous letter published in a magazine, at a time when there was a bit of a fad for people making up fake illnesses and trying to get stories about them published.
Plus the continuing lack of double-blind trials which show any plausible effect.
Theories of why MSG can affect people revolves around it being a neurotransmitter, but your body already makes its own glutamate and it's probably not possible to eat enough of it to have a noticeable difference to the amount of it that gets through the blood-brain-barrier.
Also most people have now wised up to the fact that while they didn't like the idea of MSG being added to their food, they've quite happily been eating huge quantities of "yeast extract" forever.