“Just like salt and sugar, it exists in nature, it tastes good at normal levels, but large amounts at high concentrations taste strange and aren’t that good for you,” Chaudhari said.

If you live in the United States and like spicy tuna rolls, Puerto Rican roast pork or Thai noodles, there is a good chance you are eating, and enjoying, MSG. And if you are the kind of cook who likes to keep a globe-trotting kitchen, well, then, some of these MSG-laden ingredients may deserve a place in your cupboard.