MSG or Monosodium glutamate
Some people say it's not healthy. Some people say it's absolutely fine to have msg. Some people just stay the hell away from it. Some people don't know what it is.
We have all different types of minerals in our bodies. I think too much of one thing is bad for you. i.e. too much protein, you get protein poison. Nickel, blind, etc. I think it's fine to eat MSG.(no research)