About 6 months ago I was designing a process system which involved the use of phosphoric acid to address a heavy metals issue. At the time, I had been drinking almost nothing but Diet Coke or water. I remember being in a conversation about Nutrisweet and decided to look into what this stuff was. Something about creating formaldahyde in the digestive process got my attention so I decided to see whate was in the DC.
The first ingredient on the side of the can was; Phosphoric Acid. I quit drinking the stuff that moment. About three days of noticable withdraawals from the caffene and that was it. Now I drink water and iced tea (not instant) with the occasional beer after a long hot day at the tracks.
I would rather drink my own pee than instant iced tea. I'm a tea snob.