It is much more likely that:
1. You haven't had any problems with MSG ever, including that time as a kid, just as every experiment ever done on MSG would suggest;
2. Your doctors were influenced by coverage of MSG in the medical press outside India.
Stupidity doesn't have to originate in racism.
> In 1995, the Food and Drug Administration asked an independent scientific group, the Federation of American Societies for Experimental Biology, to study MSG’s safety. It found that only a small number of people experienced any side effects, and that was only after consuming six times the normal serving of MSG on an empty stomach.
There is a _very_ small number of people who do in fact experience side effects when consuming MSG. Whilst it is pretty much harmless to most people, there is a population for who it creates discomfort. It isn't no one.
Do you have a different citation? Because what you actually quoted says it is no one, unless you think people are going to Chinese restaurants and being served a plate of pure MSG. Show me one person who has ever eaten instant noodles while maintaining an empty stomach.