Here in Sweden they put MSG in a lot of food. I think it's banned in a bunch of other countries?
In the States they brag about not having MSG in their food outside restaurants. "WE don't use MSG!"
MSG is called E621, natrium-glutamat, sodium-glutamat, mono-sodium-glutamat or "smakförstärkare" in Sweden. Everything from Santa Maria seems to have it, for example.
Seems like it can't be good for you since they also brag about not having it on a few ham brands packages here.