1, monosodium glutamate is considered toxic and carcinogenic, and it has to start with a Chinese-American doctor who transliterates as Zhao. 1968, he sent a letter to the American New England Journal of Medicine. The content of the letter said that after eating in a Chinese restaurant in the United States, my neck would feel paralyzed, my heart would beat faster and my strength would be exhausted for about two hours. He thought it was because the restaurant added monosodium glutamate, and that was the result.
I was not punished by law, because I was a Chinese-American doctor, and there was no rumor law at that time, so I was not punished.