If someone says they are allergic to MSG, they are simply abusing the word allergic. The reaction isn't allergic. It is not an immune response.
Nobody in the thread above you used the word "allergic"; you made that up.
Immune reactions are very different; they can be triggered by traces of the material. Nobody in their right mind claims they react to traces of MSG.
The following paper studies the actual mechanisms how of MSG alters blood flows in brains. Well, rat brains:
https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/...
If someone says they are allergic to MSG, they are simply abusing the word allergic. The reaction isn't allergic. It is not an immune response.
Nobody in the thread above you used the word "allergic"; you made that up.
Immune reactions are very different; they can be triggered by traces of the material. Nobody in their right mind claims they react to traces of MSG.
The following paper studies the actual mechanisms how of MSG alters blood flows in brains. Well, rat brains:
https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/...