I'm unaware of any blinded study which shows a reaction. Here's a good thread on it: https://twitter.com/CookingIssues/status/1084888303613214720?s=19 https://t

I'm unaware of any blinded study which shows a reaction. Here's a good thread on it: https://twitter.com/CookingIssues/status/1084888303613214720?s=19 https://twitter.com/CookingIssues/status/1084888303613214720... There have been studies which get self-selecting individuals to test their reaction, which would make #2 less likely. The best study, I think is https://www.sciencedirect.com/science/article/abs/pii/027869159390012N https://www.sciencedirect.com/science/article/abs/pii/027869..., where none of the individuals tested knew what they were being tested for. Maybe all msg sensitive people opted out of any food challenge, but that's not always the case, given the 2000 study in the linked tweet. I think #1 is the most likely explanation, fwiw.