Something similar is done to placate “intelligent free thinkers” who think nitrates and nitrites are the devil. If you go into a Whole Foods practically every cured meat is labeled “Uncured! Nitrate free!” If you follow the inevitable asterisk though, you see the the caveat “Except those derived from natural sources, such as celery juice.”
facepalm
Just... eat less bacon, and don’t kid yourself that it somehow matters how the nitrates got there.
That (probably) has some reality, because the issue is that nitrates and high heat cooking + proteins probably causes generation of Nitrosamine, which are carcinogenic.
I saw a TV program which claimed to be disproving MSG allergies/reactions. The science in it was terrible, though - they served one of two meals to a bunch of people claiming allergies, one of which had artificial MSG added and the other, 'placebo' meal had a seaweed extract added which contained naturally occurring MSG. Then they proceeded to deride the people who showed allergic reactions to the "placebo" as fakers, despite it containing the exact chemical that they'd claimed a sensitivity to.
I wish people would stop using yeast extract and just stick to MSG. Yeast extract always leaves a weird taste in my mouth that won't go away for hours.
It's even worse that almost all kinds of chips available in my country that aren't just plain salt use yeast extract these days.