@lain it's because of corn syrup. The rest off the world uses natural sugar, but sugar comes from South America, and we subsidize corn to "create jobs for Americans"
Fructose can't be used as energy without being processed by the liver. HFCS causes fatty liver disease and obesity even though it's only technically "sugar". It overloads your liver, and the sugar that can't be processed is stored as fat, and it's in EVERYTHING.