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You would think so, but somehow the artificial stuff is different or in greater concentration. Here's how I discovered my MSG intolerance: I made a bunch of onion soup (from onion soup mix), and ate a ton of it. I then spent the next 24 hours feeling terrible, downing pepto, etc. A few weeks later I made a recipe that included onion soup mix as an ingredient. Again I felt terrible. I though, Aha, I must have an onion…
Bingo, same here. When I was little, back in the 70's, my mom used these bouillons: Knorr and whatnot. We had no idea what is MSG, but somehow I clued in to the idea that I was feeling sick from that soup and was dreading the "headache soup". In the late 80's, I once so ill from a cup of instant noodles that I had to go home. Not long after that, I finally learned about MSG from a book I stumbled upon in the library…
Salt, monosodium glutamate, hydrogenated cottonseed oil, chicken fat, hydrolyzed soy/corn protein, dehydrated mechanically separated cooked chicken, dehydrated chicken meat, dehydrated chicken broth, autolyzed yeast extract, dehydrated onions & parsley, lactose, water, colour, spices & spice extract, disodium guanylate, disodium inosinate, citric acid, tartaric acid, hydrogenated soybean oil and sulphites.