MSG was heavily discussed in Sweden 10-15 years ago, especially the addition to potato chips. The Swedish National Food Agency said that it was safe to eat, but that some people may be hypersensitive.

I read a couple of articles now, and it seems from interviews like the people behind some of the organizations protesting its use was hypersensitive themselves. It makes sense that if they have bad reactions, they assume that the substance itself is bad in general, even if that hasn't been shown in medical trials. The Food Agency also said that since the symptoms were limited in time and severity, even if hypersensitive (blurred vision, headache, and so on) it wasn't necessary to warn the general public to stop consumption.

I read an article saying that MSG is not allowed in baby food and is cautioned against for pregnant women. The baby food claim may be true, but the Food Agency says that small children process MSG as efficiently as adults, that there's no difference of glutamate blood concentration between fetus and mother when pregnant, and that MSG is not considered a risk for the fetus. They also say that it's not probable that it's transferred to the baby in breast milk, if consumption is kept at recommended daily intake.

When I was in elementary school in the 80s and 90s, people would eat knäckebröd [1] with butter covered with Aromat [2]. We didn't know it then, but it contained MSG which was probably why it tasted so good.

Aromat contains lactose, and a vegan alternative is Vegeta [3]. I don't sprinkle it directly onto food, even if I could, but use it more like powdered broth and add it to sauces and soups. It's pretty salty, so I use it instead of salt.

Another vegan product I'd like to mention for its umami flavor is Engevita [4] nutritional yeast flakes. I sprinkle that on top of food which gives it a more deep, nutty, or cheesy flavor. Instead of monosodium glutamate, where a sodium atom is bound to the glutamate amino acid, the glutamate is bound (according to an article I read that was light on details) to other amino acids, but still performs its umami duties. This is natural occurring glutamate in the yeast, and not an additive.

[1] https://en.wikipedia.org/wiki/Crispbread

[2] https://en.wikipedia.org/wiki/Aromat

[3] https://en.wikipedia.org/wiki/Podravka#Consumer_brands

[4] http://marigoldhealthfoods.co.uk/products/engevita/engevita-...