Good drinks for the voice: Part1 Flat Coke

I will now review how the voice relates to specific kinds of drinks, in a series.
This is part 1: “Flat Coke”
A TV station called me and wanted to use me as a reference. They asked me, “It is often heard that if you drink Flat Coke, you get a better voice to sing a song, because the vocal cord is engorged. Is that true?”
This question has crossed my mind as well in the past, and this call prompted me to do some research. Is that true or not? At first thought, the coke would never reach the vocal cord directly. Here is why.

1
Green “O” is the esophagus and “X” is the bronchi.

Food and drink enter through the mouth, which will then diverge from the epiglottis to the esophagus. The drink liquid cannot travel to the vocal cord after absorbing in the stomach and the intestine.
Even if the coke has some particular ingredients for the voice, it’s not likely to affect only the vocal cord.
As a result of my research, I do not believe that it is true. Flat Coke does not directly affect the vocal cord.

coladrink

Note:Their question was Flat Coke but not normal coke, I thought that sounded a little special. Because if it’s not flat, it inhibits carbonation, which would affect the voice – by make you belch during singing, lol.

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