If you are stranded in the desert and only have Soda to drink

[TheProbst]

I got in an argument with my gf on this subject. She claims that If you are stranded in the desert and only have Soda to drink; drinking that soda will actually make you die faster. How can this be. I have been googling the [censored] out of this and cant really find anything that says either way. Any nutritionists or anything out there can confirm, deny?