Drinking flat coke is something i've heard a lot about as well.Drinking coke that has gone a bit flat can be used to help nausea. My nurse supervisor drinks diet drinks as a rule, but when she gets sick at work she will drink a can of regular Pepsi.
I love diet cherry coke so l wonder if that's how l never get upset an stomach?. We were just taking about them today and it's been so long since i've had an upset stomach l can't think when it was?!