Hey Fambly. I was talking to my neighbor today and he told me he used to work for the airlines showing them how to ship hazardous materials. Then he told me the most dangerous material to ship by plane is Coca Cola.. They use a plastic coating inside the canss because the phosphorous acid in Coke will eat aluminum and that's what airplanes are made of. The change in air pressure can cause the cans to explode so they have to be very careful how they seal the cans on a plane. I wondered if it does that to aluminum imagine what it does to the stomach. He said yes Coke will damage your kidneys. I googled around to se if I could find some more information. What I found is startling though not surprising. http://tuberose.com/Soft_Drinks.html According to this article a lot of the conditions doctors tell us are a normal part of aging can actually be traced to years of drinking Coke. This article gives a detailed explanation of the effect each ingrediant in Coke has on the body and also list some other uses for Coke like cleaning your toilet or removing rust from your car bumpers.