I believe that the popular opinion by many is that they do not have NCGS. TV personalities like Bourdain drive this heavily by discussing how gf used to not really be a thing in restaurants, but now is quite popular.
The more recent research -- by the people who originally studied NCGS -- is that the earlier studies may have been detecting sensitivity to other things, and that NCGS may not exist at all.
I believe that the popular opinion by many is that they do not have NCGS. TV personalities like Bourdain drive this heavily by discussing how gf used to not really be a thing in restaurants, but now is quite popular.