The articles mentioned studies, but I can't give informed speculation, have not looked at any of the studies. Will assume the participants who reported irritation are a small enough a population to fall within the range of participants reporting irritation from placebo. So I'll opine that most of the people who report negative reaction probably have not sufficiently isolated MSG as the culprit, even if they are certain enough to convict.

Side note: Latacora intreagues me, I think it's a good aproach to satisfy some security pain points. If things go well in the next few months, I may reach out to evaluate fit;-)