@fesshole at the risk of being controversial, I don't see any problem with MSG. I use it all the time when I cook, it enhances the flavour of many savoury dishes.
You describe it like a performance enhancing drug for food. What's so wrong with it?
@DavidBridger thanks for that description. You must be a part of a tiny minority sensitive to MSG, and indeed there are many foods and food additives that some people are sensitive or allergic to.
That doesn't make it bad, just like people with a peanut allergy don't make peanuts bad.
@DavidBridger that's higher than I thought, and in the same order of magnitude of peanut allergy or tree nut allergy.
I did try to find information about the prevalence of MSG allergy or sensitivity without success - what's your source?