I've stopped going to my favorite Japanese Hot Pot place in San Francisco (Shabu House) because I discovered they use MSG in their broth. And I found out in the most distressing way.
Me: This hot pot is especially salty today. Do you think they use MSG?
Friend: No- of course not- I wouldn't come here if they used MSG.
Me: Excuse me (to waitress)- is there MSG in this?
Waitress: (nods fervently)