Chewing gum while in uniform

Sorry...I'm a recruiter and bad breath is unacceptable. I can't always brush my teeth going from one appointment to the next so I and many of my cohorts pop in some gum. I don't chew it in front of applicants...very rude to do so in my eyes. Also with many of my co workers trying to quit smoking, gum becomes a popular "substitute". I'd rather see gum chewing than smell a stale cigarette on someone's uniform.

i only get bothered by it when the individuals chewing gum start popping and smacking it.

As long as not in formation, or otherwise distracting

Fun Story: During the holiday half-day schedule I joined my family (wife and kids) for lunch at the Fort Jackson Food Court (I was in my ACUs since I was working). As we made our way through the seating area, an 'older' gentleman got up from his seat and approached me. (I'm never sure what to expect, especially at Fort Jackson and all the folks visiting their Soldiers in training.)
He said, "Colonel, you should know better."
Taken by surprise, I asked him what I should know better?
He said, "You can't chew gum in uniform."
Very surprised at this, I said, "Sir, I had never heard that, why do you say so?"
At this he looked disgustingly at me and said, "It is against regulations and you know that" and then sat down.
Anyway, as soon as I could I asked my Command Sergeant Major, who reassured me that as long as I wasn't being distracting, or in uniform, I was fine, whew!